|
[Sponsors] |
oscillating airfoil in an inviscid fluid flow |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
December 8, 2007, 03:15 |
oscillating airfoil in an inviscid fluid flow
|
#1 |
Guest
Posts: n/a
|
How can we apply pressure boundary condition on airfoil surface oscillating in an inviscid fluid flow?
|
|
December 8, 2007, 06:30 |
Re: oscillating airfoil in an inviscid fluid flow
|
#2 |
Guest
Posts: n/a
|
Why do you need a pressure boundary condition, not the standard vanishing normal velocity on the airfoil?
|
|
December 8, 2007, 07:36 |
Re: oscillating airfoil in an inviscid fluid flow
|
#3 |
Guest
Posts: n/a
|
I want to solve unsteady Euler equations using C-type mesh. that's why I need pressure boundary condition on the airfoil surface.
|
|
December 8, 2007, 12:53 |
Re: oscillating airfoil in an inviscid fluid flow
|
#4 |
Guest
Posts: n/a
|
the pressure BC can be obtained from the expression(latex math): {\partial p \over \partial n}=-\rho \vec{a}_b \cdot \vec{n} where \vec{a}_b is the acceleration of the body and \vec{n} is a vector normal to the surface.
|
|
December 10, 2007, 02:17 |
Re: oscillating airfoil in an inviscid fluid flow
|
#5 |
Guest
Posts: n/a
|
the equation you mentioned must be applied in the fluid and we know that fluid particles slip on the airfoil surface and for slip condition we know that acceleration of body is not equal to fluid particles !
|
|
December 10, 2007, 06:25 |
Re: oscillating airfoil in an inviscid fluid flow
|
#6 |
Guest
Posts: n/a
|
||
December 10, 2007, 09:07 |
Re: oscillating airfoil in an inviscid fluid flow
|
#7 |
Guest
Posts: n/a
|
You apply this to get the pressure and then a condition on the normal velocity(ie that they are the same for the fluid and structure). Look at any papers which deal with fluid-structure interaction and the Euler equations.
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Inviscid flow solver | luca_g | OpenFOAM Running, Solving & CFD | 3 | August 11, 2024 11:52 |
flow around an airfoil | Nicola | FLUENT | 1 | August 15, 2013 20:31 |
benchmark: flow over a circular cylinder | goodegg | Main CFD Forum | 12 | January 22, 2013 12:47 |
Water subcooled boiling | Attesz | CFX | 7 | January 5, 2013 04:32 |
Inviscid Drag at subsonic, subcritical Mach # | Axel Rohde | Main CFD Forum | 1 | November 19, 2001 13:19 |