CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Wiki > Search results

Search results

From CFD-Wiki

Jump to: navigation, search

Create the page "Turbulent" on this wiki!

Page title matches

  • Default minimum turbulent viscosity
    38 B (4 words) - 23:10, 6 September 2005
  • Turbulent flat-plate
    ...ence-paper|author=Coles, D. E, Hirst, E. A.|year=1969|title=Computation of Turbulent Boundary Layers|rest=1968 AFOSR-IFP-Stanford Conference, Volume II, Stanfor ...eference-paper|author=Wieghardt, K. and Tillman, W.|year=1951|title=On the Turbulent Friction Layer for Rising Pressure|rest=NACA TM-1314}}
    863 B (113 words) - 14:20, 22 May 2007
  • Turbulent flow
    24 B (2 words) - 03:00, 15 September 2005
  • Turbulent flow over backward facing step
    ...'''Driver, D,M., and Seegmiller, H,L.''' (1985). Features of a Reattaching Turbulent Shear Layer in Divergent Channel Flow. AIAA Journal, 23, 163-171.
    354 B (49 words) - 08:50, 25 November 2009
  • Turbulent viscosity ratio
    34 B (4 words) - 16:25, 17 April 2006
  • Turbulent length-scale
    #redirect [[Turbulent length scale]]
    36 B (4 words) - 16:33, 17 April 2006
  • Turbulent length scale
    37 B (4 words) - 17:27, 6 May 2006
  • 2-D laminar/turbulent driven square cavity flow
    A classical [[test problem]] is [[numerical simulation]] of a [[laminar]]/[[turbulent]] flow of an [[incompressible viscous fluid]] in a square cavity with the u
    5 KB (692 words) - 18:37, 13 August 2007
  • Turbulent Flow over backward facing step
    #REDIRECT [[Turbulent flow over backward facing step]]
    54 B (7 words) - 07:51, 21 June 2007
  • 2-D Laminar/Turbulent driven square cavity flow
    #REDIRECT [[2-D laminar/turbulent driven square cavity flow]]
    61 B (8 words) - 07:53, 21 June 2007
  • Introduction to turbulence/Free turbulent shear flows
    ...m jet engines. Most combustion processes and many mixing processes involve turbulent free shear flows. ...t often turbulent. Even if generated as laminar flows, they tend to become turbulent much more rapidly than the wall-bounded flows which we will discuss later.
    67 KB (11,204 words) - 13:42, 19 April 2016
  • Introduction to turbulence/Wall bounded turbulent flows
    == The "outer" turbulent boundary layer == The understanding of turbulent boundary layers begins with exactly the same averaged equations we used for
    41 KB (7,002 words) - 13:02, 21 March 2012

Page text matches

  • Fluid dynamics
    * [http://www.engr.sjsu.edu/nikos/courses/me111/pdf/poem-Naomi.pdf The Turbulent History of Fluid Mechanics], a poem by Naomi Tsafnat
    2 KB (205 words) - 10:17, 13 March 2013
  • Favre averaged Navier-Stokes equations
    ...) for Favre averaged turbulent flows contains an extra term related to the turbulent energy. ... numbers typically present in real cases these equations have very chaotic turbulent solutions, and it is necessary to model the influence of the smallest scale
    15 KB (2,374 words) - 20:33, 24 November 2005
  • Nomenclature
    <td>Turbulent kinetic energy</td> <tr><td><math>t</math></td><td>Turbulent property</td></tr>
    4 KB (766 words) - 20:23, 11 June 2011
  • Reynolds number
    ...]] or [[turbulent]]. At high Reynolds numbers flows generally tend to be [[turbulent]], which was first recognized by [[Osborne Reynolds]] in his famous [[pipe
    3 KB (450 words) - 09:15, 3 January 2012
  • Osborne Reynolds
    ...n pipes transitioned from [[Laminar_flow | laminar]] to [[Turbulent_flow | turbulent]]. From these experiments came the dimensionless [[Reynolds number]] for dy ...nd fluctuating components. Such averaging allows for 'bulk' description of turbulent flow, for example using the [[Reynolds averaged Navier-Stokes equations]].
    1 KB (219 words) - 14:15, 13 September 2005
  • Navier-Stokes equations
    ...s | Favre averaged turbulent flows]] contains an extra term related to the turbulent energy. ...t published a derivation of the equations that applied to both laminar and turbulent flows. However the other person whose name is attached with Navier is the I
    29 KB (4,606 words) - 18:17, 28 August 2012
  • Vistur.f
    vistur.f enables the user to prescribe a value for the turbulent viscosity. It can be used for various reasons, for example a) to change the [[default minimum turbulent viscosity]] value
    289 B (47 words) - 23:06, 6 September 2005
  • Introduction to turbulence
    ...ction to turbulence/Nature of turbulence#The turbulent world around us|The turbulent world around us]] == [[Introduction to turbulence/Free turbulent shear flows|Free turbulent shear flows]] ==
    8 KB (948 words) - 12:34, 15 March 2012
  • Introduction to turbulence/Statistical analysis
    Most of the statistical analyses of turbulent flows are based on the idea of an ensemble average in one form or another.
    4 KB (544 words) - 18:06, 25 June 2007
  • Reynolds stress model (RSM)
    ...s transport equation. They are able to account for complex interactions in turbulent flow fields, such as the directional effects of the Reynolds stresses. ...- \omega</math> models have significant shortcomings in complex, real-life turbulent flows that are often encountered in engineering applications. In flows with
    8 KB (1,203 words) - 01:47, 18 April 2017
  • Reynolds averaging
    Reynolds averaging is often used in fluid dynamics to separate turbulent fluctuations from the mean-flow. The term Reynolds averaging originates fro
    864 B (140 words) - 09:59, 7 September 2005
  • Favre averaging
    ...ow. In most cases it is not necessary to use Favre averaging though, since turbulent fluctuations most often do not lead to any signigicant fluctuations in dens
    1 KB (209 words) - 21:48, 26 August 2013
  • Direct numerical simulation (DNS)
    where Re is the turbulent Reynolds number
    4 KB (672 words) - 13:52, 25 July 2012
  • Fluent FAQ
    ...n trying to get a solution with the segregated solver, DO NOT increase the turbulent viscosity ratio limit (unless you have a great reason to based on past expe ==== What is the turbulent viscosity ratio warning and how can I handle it? ====
    39 KB (6,386 words) - 16:48, 26 April 2013
  • MeteoDyn FAQ
    ...the turbulence. In this way, meteodyn WT gets more realistic values of the turbulent viscosity. ...and high roughness effects are also considered in the determination of the turbulent viscosity.
    4 KB (704 words) - 15:38, 12 February 2010
  • Best practice guidelines for turbomachinery CFD
    ...e the incoming turbulence level, but very seldom also include the incoming turbulent length-scale. The best way of guessing a realistic incoming length-scale is ... eddy viscosity assumption]] and this often leads to an over-production of turbulent energy in regions with strong acceleration or deceleration, like in the lea
    41 KB (6,252 words) - 08:46, 4 March 2023
  • Page name test
    THE TURBULENT VISCOSITY CONCEPT ...urbulent viscosity supplies the structure to build a turbulent model. The turbulent viscosity is not a property of the fluid, and thus its value is mostly dete
    2 KB (352 words) - 21:51, 18 May 2006
  • Baldwin-Lomax model
    ...year=1978|title=Thin Layer Approximation and Algebraic Model for Separated Turbulent Flows|rest=AIAA Paper 78-257}} ...ce-paper|author=Granville, P. S.|year=1987|title=Baldwin-Lomax Factors for Turbulent Boundary Layers in Pressure Gradients|rest=AIAA Journal, Vol. 25, No. 12, p
    8 KB (1,262 words) - 09:15, 3 January 2012
  • Turbulence modeling
    ... issue in most CFD simulations. Virtually all engineering applications are turbulent and hence require a turbulence model.
    3 KB (282 words) - 19:16, 10 April 2021
  • Two equation turbulence models
    ...tion model to account for history effects like convection and diffusion of turbulent energy. ...equation model it is. Common choices are the [[Turbulence dissipation rate|turbulent dissipation]], <math>\epsilon</math>, or the [[specific turbulence dissipat
    11 KB (1,667 words) - 20:52, 25 October 2016
  • Reynolds averaged equations
    All fluid motions, whether turbulent or not, are governed by the dynamical equations for a fluid. These can be w ... to these solutions(sometimes even infinitesimal) can cause them to become turbulent. To see how this can happen, it is convenient to analyze the flow in two pa
    17 KB (2,883 words) - 22:16, 14 May 2006
  • Introduction to turbulence/Nature of turbulence
    ==The turbulent world around us== The turbulent motion of fluids has captured the fancy of observers of nature for most of
    16 KB (2,597 words) - 21:12, 9 November 2016
  • Ansys FAQ
    ...errors are caused by user specifications. For example, the user may run a turbulent simulation as laminar or an unsteady simulation as steady. These errors ca
    27 KB (4,461 words) - 02:03, 18 August 2018
  • Validation and test cases
    *[[2-D laminar/turbulent driven square cavity flow]] *[[Turbulent flow over backward facing step]]
    4 KB (629 words) - 21:50, 3 August 2017
  • Lid-driven cavity problem
    This problem has been solved as both a laminar flow and a turbulent flow, and many different numerical techniques have been used to compute the
    3 KB (546 words) - 12:44, 9 April 2013
  • Turbulent flat-plate
    ...ence-paper|author=Coles, D. E, Hirst, E. A.|year=1969|title=Computation of Turbulent Boundary Layers|rest=1968 AFOSR-IFP-Stanford Conference, Volume II, Stanfor ...eference-paper|author=Wieghardt, K. and Tillman, W.|year=1951|title=On the Turbulent Friction Layer for Rising Pressure|rest=NACA TM-1314}}
    863 B (113 words) - 14:20, 22 May 2007
  • Large eddy simulation (LES)
    Large eddy simulation (LES) is a popular technique for simulating turbulent flows. An implication of [[Kolmogorov]]'s (1941) theory of self similarity and <math> \nu_t </math> is the subgrid-scale turbulent viscosity. Substituting into the filtered Navier-Stokes equations, we then
    6 KB (882 words) - 21:50, 24 June 2013
  • Spalart-Allmaras model
    The turbulent eddy viscosity is given by ...es to adapting the model for compressible flows. In the first approach the turbulent dynamic viscosity is computed from
    4 KB (662 words) - 13:34, 23 April 2015
  • RNG k-epsilon model
    ...fied scale, whereas in reality all scales of motion will contribute to the turbulent diffusion. The RNG approach, which is a mathematical technique that can be With the turbulent viscosity being calculated in the same manner as with the standard k-epsilo
    3 KB (480 words) - 02:44, 5 June 2010
  • Standard k-epsilon model
    For turbulent kinetic energy <math> k </math> <br> == Modeling turbulent viscosity ==
    3 KB (401 words) - 20:15, 16 December 2014
  • Approximation Schemes for convective term
    Transonic Inviscid / Turbulent Airfoil Flow Simulations Using a Pressure Based Method with High Order Sche ...m Monotonic Interpolation for Scalar Transport with application to complex turbulent flows, International Journal for Numerical Methods in Fluids, Vol. 19, p.25
    30 KB (4,389 words) - 06:47, 16 September 2005
  • Approximation Schemes
    ...n of a third-order accurate monotone convection scheme with application to turbulent flows in general domains. International Journal for numerical methods in fl ...m Monotonic Interpolation for Scalar Transport with application to complex turbulent flows, International Journal for Numerical Methods in Fluids, Vol. 19, p.25
    16 KB (2,286 words) - 18:01, 14 September 2005
  • Transport equation based wall distance calculation
    D.B.Spalding, ‘Calculation of turbulent heat transfer in cluttered spaces’, Proc. 10th Int. Heat Transfer Confere
    2 KB (267 words) - 12:31, 2 August 2006
  • Other Schemes (unclassified) - structured grids
    ...n of a third-order accurate monotone convection scheme with application to turbulent flows in general domains. International Journal for numerical methods in fl
    16 KB (2,435 words) - 21:09, 10 December 2010
  • Combustion
    <math>u'</math> Turbulent integral RMS velocity Most problems in combustion involve turbulent flows, gas and liquid
    156 KB (25,897 words) - 22:14, 17 March 2011
  • Realisable k-epsilon model
    == Modelling Turbulent Viscosity ==
    2 KB (380 words) - 19:57, 16 December 2014
  • Dynamic subgrid-scale model
    is the resolved turbulent stress. The Germano identity is used to calculate dynamic local values for
    3 KB (505 words) - 19:56, 8 May 2007
  • Approximation Schemes for convective term - structured grids - Common
    ... schemes|year=1995|rest=9th Int. Conf. on Numerical Methods in Laminar and Turbulent Flow, Atlanta, USA, July 1995, Taylor and Durbetaki eds., Pineridge Press}}
    28 KB (4,096 words) - 13:11, 24 October 2016
  • Probability density function
    in a turbulent field. This term often appears in turbulent flows the averaged Navier-Stokes (with <math> u, v </math>) and is unclosed
    3 KB (564 words) - 16:03, 20 May 2011
  • Flow across a square cylinder
    ...der is an important test case for the validation of separated flows in the turbulent regime. In the past, it has been regularly used to validate [[Large Eddy Si ...aser-doppler velocimetry study of ensemble-averaged characteristics of the turbulent near wake of a square cylinder|rest=Journal of Fluid Mechanics, vol 304, pp
    3 KB (470 words) - 22:54, 6 April 2006
  • Mesh generation
    This function is good for duct flows, such as turbulent channel flow. In situations in which different grid spacings are desired,
    11 KB (1,840 words) - 10:16, 21 August 2006
  • Prandtl's one-equation model
    :<math>l</math> is the turbulent length scale *{{reference-paper|author=Glushko, G.|year=1965|title=Turbulent boundary layer on a flat plate in an incompressible fluid|rest=Izvestia Aka
    2 KB (285 words) - 19:43, 22 September 2010
  • Schemes by Leonard - structured grids
    In C. Taylor and P. Durbetaki, editors, Numerical Methods in Laminar and Turbulent Flow, volume 9, pages 1–12. Pineridge Methods in Transient and Turbulent Flow, pages 1–35. Pineridge Press, Swansea, 1981.
    4 KB (518 words) - 20:23, 1 July 2008
  • Fromm based Schemes - structured grids
    ...P.Durbetaki, editors, Proc. Ninth Int. Conf. on Numer. Method. Laminar and turbulent Flow, pages 203-214, Pineride Press, Swansea, 1995
    2 KB (330 words) - 21:17, 10 December 2010
  • Solution of Navier-Stokes equations
    Thus, the equation as written will be valid for both turbulent or laminar flows, with some modification of the actual meaning of individua
    2 KB (330 words) - 10:01, 23 April 2009
  • Approximation Schemes for convective term - structured grids - What we need: Please help
    ...t=In C. Taylor and P. Durbetaki, editors, Numerical Methods in Laminar and Turbulent Flow, volume 9, pages 1–12. Pineridge Press, 1995.}} ...n C. Taylor and K. Morgan, editors, Computational Methods in Transient and Turbulent Flow, pages 1–35. Pineridge Press, Swansea, 1981.}}
    5 KB (615 words) - 17:27, 7 November 2011
  • Sand box Approximation Schemes
    ...m monotonic interpolation for scalar transport with application to complex turbulent flows |journal=Int. J. Num. Meth. Fluids |volume=19 |pages=527–548 |doi=1 ... convective flows |title=Proc. 1st Conf. on Numerical Methods in Laminar & Turbulent Flow |location=Swansea |page=807 }}
    26 KB (3,687 words) - 20:19, 7 November 2011
  • Non-Linear QUICK based Schemes - structured grids
    Transonic Inviscid / Turbulent Airfoil Flow Simulations Using a Pressure Based Method with High Order Sche ...m Monotonic Interpolation for Scalar Transport with application to complex turbulent flows, International Journal for Numerical Methods in Fluids, Vol. 19, p.25
    11 KB (1,616 words) - 21:12, 10 December 2010
  • NSC2KE
    ...equations, a Roe, an Osher and a Kinetic solvers are available. To compute turbulent flows a k-epsilon model is available. Near-wall turbulence is computed eith
    873 B (151 words) - 03:54, 21 October 2005
  • Machine precision
    ...d double precision must be made judiciously. For example, while performing turbulent Navier-Stokes computations, the grid is highly clustered near solid walls.
    3 KB (485 words) - 04:14, 29 November 2005
  • OpenFlower
    ...y devoted to the [[Large eddy simulation (LES)| large eddy simulation]] of turbulent flows. OpenFlower is interfaced with [[Gmsh]] (pre- post-processing) and [[
    3 KB (388 words) - 20:06, 7 June 2007
  • Beta PDF
    This function is widely used in turbulent combustion to define the scalar distribution at each
    835 B (129 words) - 10:05, 17 December 2008
  • Algebraic turbulence models
    ...for history effects on the turbulence, such as convection and diffusion of turbulent energy. These models are often too simple for use in general situations, bu
    1 KB (165 words) - 20:39, 1 April 2007
  • V2-f models
    ... It can provide the right scaling for the representation of the damping of turbulent transport close to the wall. The anisotropic wall effects are modelled thro The turbulent viscosity is defined as
    6 KB (917 words) - 05:45, 7 February 2014
  • Cebeci-Smith model
    ...or=Smith, A.M.O. and Cebeci, T. |year=1967|title=Numerical solution of the turbulent boundary layer equations|rest=Douglas aircraft division report DAC 33735}}
    3 KB (419 words) - 12:13, 18 December 2008
  • Johnson-King model
    ...ss. It was not developed to be a universal model, rather to solve only for turbulent boundary layer flows with strong adverse pressure gradient. ... mathematically simple turbulence closure model for attached and separated turbulent boundary layers, AIAA Journal, 23, 1684-1692, 1985.
    735 B (103 words) - 05:48, 17 January 2012
  • Subgrid variance
    ... subgrid variance flux and is often modeled using a gradient approach with turbulent diffusivity.
    1 KB (242 words) - 11:19, 11 January 2006
  • Karlovitz number
    The Karlovitz number is used in turbulent combustion and smallest turbulent time scale <math> \tau_k </math>
    594 B (90 words) - 11:13, 22 May 2010
  • Damkohler number
    The Damkohler number is used in turbulent combustion and turbulent time scale <math> \tau_t </math>.
    1 KB (245 words) - 13:50, 6 February 2012
  • General CFD FAQ
    The Reynolds decomposition is used to separate the scales in a turbulent flow and resolve the velocity field (or any other scalar field) as the sum
    7 KB (1,199 words) - 13:47, 5 June 2013
  • CHAM FAQ
    ...hich is applicable to steady or unsteady, one- , two- or three-dimensional turbulent or laminar, multi-phase, compressible or incompressible flows using Cartesi ...volved: is this single-phase, is there any heat transfer, is it laminar or turbulent, is there radiation, etc.?
    37 KB (5,717 words) - 12:46, 9 December 2019
  • Heat transfer
    ... kind of convection heat transfer, the fluid flow can be either laminar or turbulent. Turbulent flow forms when the boundary layer is shedding or breaking due to higher ve
    6 KB (990 words) - 03:23, 17 February 2009
  • Turbulent flow over backward facing step
    ...'''Driver, D,M., and Seegmiller, H,L.''' (1985). Features of a Reattaching Turbulent Shear Layer in Divergent Channel Flow. AIAA Journal, 23, 163-171.
    354 B (49 words) - 08:50, 25 November 2009
  • Kato-Launder modification
    ...reduce the tendency that many two-equation models have to over-predict the turbulent production in regions with large normal strain, i.e. regions with strong ac ...Wiki article on [[low-Re k-epsilon models]] the transport equation for the turbulent energy, <math>k</math>, used in most two-equation models can be written as:
    6 KB (938 words) - 09:12, 12 June 2007
  • Scalar dissipation
    In turbulent flows, the scalar dissipation is seen as a scalar energy dissipation} and i turbulent energy <math> \epsilon </math>. This term is known as the turbulent scalar dissipation
    2 KB (246 words) - 16:41, 12 April 2007
  • Two phase flow
    ...nqueres PH., Guesbet G.|year=1990|title= Particle Lagrangian simulation in turbulent Flows|rest=Int. J. Multiphase Flow, 16-1, pp 19-34}} ...o-flow on particles or droplets dispersion and on droplets vaporization in turbulent air flow |rest=ICAMEM2006, Hammamet, Tunisia}}
    13 KB (2,060 words) - 11:38, 6 December 2010
  • Wall modeling
    ...imated by wall equations. This is achieved by having the first cell in the turbulent region by calculating the y+
    198 B (36 words) - 05:41, 2 March 2006
  • Turbulence intensity
    where <math>u'</math> is the root-mean-square of the turbulent velocity fluctuations and <math>U</math> is the mean velocity ([[Reynolds a If the turbulent energy, <math>k</math>, is known <math>u'</math> can be computed as:
    5 KB (661 words) - 16:24, 23 July 2022
  • Turbulence length scale
    ...al quantity describing the size of the large energy-containing eddies in a turbulent flow. ...e larger than the dimension of the problem, since that would mean that the turbulent eddies are larger than the problem size.
    3 KB (428 words) - 19:56, 15 June 2012
  • Hydraulic diameter
    ===Estimating the turbulent length-scale=== For fully-developed flow in non-circular ducts the [[turbulent length scale]] can be estimated as <math>0.07 \, d_h</math>. This is as use
    2 KB (267 words) - 09:58, 17 December 2008
  • Turbulence free-stream boundary conditions
    ...ink in terms of variables like the incoming [[turbulence intensity]] and [[turbulent length scale]] or [[eddy viscosity ratio]]. These properties are more intui ===Modified turbulent viscosity===
    4 KB (712 words) - 11:59, 15 January 2014
  • Eddy viscosity ratio
    ... viscosity ratio, <math>\frac{\mu_t}{\mu}</math>, is the ratio between the turbulent viscosity, <math>\mu_t</math>, and the molecular dynamic viscosity, <math>\ Eddy viscosity ratio is often also called turbulent viscosity ratio or simply viscosity ratio.
    1 KB (201 words) - 12:26, 19 December 2008
  • Near-wall treatment for LES models
    ...a refined mesh is embedded into the main flow,and the following simplified turbulent boundary-layer equations are solved: The boundary conditions for the turbulent boundary layer equations
    3 KB (497 words) - 12:30, 8 June 2006
  • Focus area May 2006: Turbulence modeling
    ##[[Turbulent kinetic energy]]
    2 KB (268 words) - 15:34, 11 May 2006
  • Eddy viscosity
    ...n) is modeled with a molecular viscosity. The hyptheses that the effect of turbulent eddies on the flow can be modeled in this was is often refered to as the [[ The eddy viscosity is also commonly called the turbulent viscosity and it is normally written as <math>\mu_t</math>.
    564 B (93 words) - 18:22, 6 May 2006
  • Boussinesq eddy viscosity assumption
    | title = About Boussinesq’s turbulent viscosity hypothesis: historical remarks and a direct evaluation of its val </ref> that the momentum transfer caused by turbulent eddies can be modeled with an eddy viscosity. This is in analogy with how t
    2 KB (292 words) - 09:15, 3 January 2012
  • Wall functions
    ...tion and dissipation of the turbulent kinetic energy, therefore decreasing turbulent instability in near-wall simulations.
    600 B (92 words) - 09:47, 17 December 2008
  • Skin friction coefficient
    For a turbulent boundary layer several approximation formulas for the local skin friction f ... it is valid between 5x10^5<Re<10^7 with the assumption of the flow being turbulent from the leading edge (page 639)
    4 KB (516 words) - 12:14, 14 January 2016
  • Law of the wall
    ''We should have a lin-log plot here of a typical turbulent boundary layer to illustrate where the log-law is valid, anyone have one ha
    744 B (111 words) - 08:32, 7 September 2011
  • Yap correction
    ...under, B. E.|year=1993|title=Modelling Convective Heat Transfer in Complex Turbulent Flows|rest=Engineering Turbulence Modeling and Experiments 2, Proceedings o {{reference-book|author=Yap, C. J.|year=1987|title=Turbulent Heat and Momentum Transfer in Recirculating and Impinging Flows|rest=PhD Th
    3 KB (513 words) - 18:55, 9 November 2010
  • Introduction to turbulence/Statistical analysis/Ensemble average
    ...or at a given point in space and time <math>\vec{x},t </math> , in a given turbulent flow can be considered to be a random variable, say <math> u_{i} \left( \ve
    8 KB (1,391 words) - 12:29, 2 July 2011
  • Focus area August 2006: Validation and test cases
    ## [[Turbulent flat-plate]] ## the backward facing step (both laminar and turbulent)
    2 KB (375 words) - 10:19, 18 December 2008
  • Introduction to turbulence/Reynolds averaged equations
    All fluid motions, whether turbulent or not, are governed by the dynamical equations for a fluid. These can be w ... to these solutions(sometimes even infinitesimal) can cause them to become turbulent. To see how this can happen, it is convenient to analyze the flow in two pa
    45 KB (7,578 words) - 08:35, 21 August 2013
  • FENSAP-ICE
    # Inviscid and viscous turbulent
    2 KB (299 words) - 14:56, 15 December 2006
  • First cell height calculation
    ...e generated in such a manner that it captures boundary layer properly. For turbulent flows, calculation of the [[Dimensionless wall distance (y plus) | Y plus]]
    934 B (146 words) - 05:06, 29 November 2011
  • Flow around a circular cylinder
    This problem has been solved as both a laminar flow and a turbulent flow. The DNS, LES, and the transitional cases are still considered a rese == Turbulent Simulations ==
    6 KB (884 words) - 11:31, 8 April 2017
  • Introduction to turbulence/Turbulence kinetic energy
    ...by equation 6 will provide the framework for understanding the dynamics of turbulent motion. The second form, equation 8 forms the basis for most of the second- ...to remember this relation if you note that the time scale of the energetic turbulent eddies can be estimated as <math> L/u </math>. Thus <math> d3u^{2} / dt </m
    47 KB (7,664 words) - 12:47, 13 December 2013
  • CFD-FASTRAN
    ...e the reduced Euler set of equations by selecting the inviscid option. For turbulent flows, the software supports a range of RANS schemes such as k-epsilon, k-o
    2 KB (337 words) - 09:53, 17 December 2008
  • Discontinuous Galerkin
    laminar and turbulent conditions.
    9 KB (1,518 words) - 09:15, 3 January 2012
  • K-epsilon models
    ...tion model to account for history effects like convection and diffusion of turbulent energy. ...ergy, <math>k</math>. The second transported variable in this case is the turbulent dissipation, <math>\epsilon</math>. It is the variable that determines the
    3 KB (406 words) - 16:03, 18 June 2011
  • K-omega models
    ...tion model to account for history effects like convection and diffusion of turbulent energy. The first transported variable is turbulent kinetic energy, <math>k</math>. The second transported variable in this ca
    1 KB (148 words) - 12:43, 12 October 2011
  • Structured mesh generation
    This function is good for duct flows, such as turbulent channel flow. In situations in which different grid spacings are desired,
    8 KB (1,204 words) - 03:53, 27 April 2012
  • ELMER
    ...r is suited for incompressible and compressible low mach number flows. For turbulent flows Elmer includes some RANS models. Currently development of VMS LES mod
    1 KB (185 words) - 07:37, 31 March 2011
  • Zeta-f model
    == Turbulent viscosity <math>\nu_t</math> == == Turbulent kinetic energy <math>k</math> ==
    3 KB (440 words) - 10:06, 17 December 2008
  • CFD++
    ...s media, etc. Various topography-parameter-free models are used to capture turbulent flow features. The nonlinear subset of these models accounts for Reynolds s
    3 KB (380 words) - 01:38, 17 January 2007
  • 2-D laminar/turbulent driven square cavity flow
    A classical [[test problem]] is [[numerical simulation]] of a [[laminar]]/[[turbulent]] flow of an [[incompressible viscous fluid]] in a square cavity with the u
    5 KB (692 words) - 18:37, 13 August 2007
  • One equation turbulence models
    ...tion turbulence models solve one turbulent transport equation, usually the turbulent kinetic energy. The original one-equation model is [[Prandtl's one-equation
    418 B (43 words) - 01:07, 8 April 2021
  • PHOENICS
    ...hich is applicable to steady or unsteady, one- , two- or three-dimensional turbulent or laminar, multi-phase, compressible or incompressible flows using Cartesi ...el (MFM) which can be used to ''derive'' Probability Density Functions for turbulent flow problems (although only fairly basic validations of this approach have
    11 KB (1,641 words) - 11:18, 5 July 2013
  • Transition to turbulence
    ...rough a state of intermittent laminar-turbulence and finally becomes fully turbulent. The distance and time over which this takes place depends on the particula
    4 KB (558 words) - 00:11, 23 May 2007
  • Collocated grid
    ...|author=Rhie, C. M. and Chow, W. L.|year=1983|title=Numerical study of the turbulent flow past an airfoil with trailing edge separation|rest=AIAA Journal, vol.
    397 B (57 words) - 10:39, 24 May 2007

View (previous 100 | next 100) (20 | 50 | 100 | 250 | 500)

Views
My wiki
wiki toolbox