Solve fluid flow instability problems using OpenFOAM

Dr. Ravi kant · February 7, 2020, 08:14

How to solve a fluid flow instability problem (i.e. Linearized perturbed Navier-Stokes LNSE equations) using OpenFOAM ? I didn't find any tutorial/documentation by OpenFOAM community so far.
Although, recently I have encountered a research article title - Instability and sensitivity analysis of flows using OpenFOAM by Liu Qionga F.Gomezb J.M.Pereza and V.Theofilisa (link - https://www.sciencedirect.com/scienc...00936116300024)
However, I have found out that NEK5000 has a dedicated tutorial on LNSE stability equation (link - http://nek5000.github.io/NekDoc/theo...ized-equations

HPE · February 7, 2020, 14:20

No idea, but very interesting.

But maybe you can provide a tutorial to the community.

Kader · January 1, 2021, 15:44

Hi Ravi kant,
I have the same problem.
did you find a solution?

Dr. Ravi kant · April 19, 2021, 06:08

Sorry couldnt find the answer, but I found 2 threads seeking similar problem -

1. Problem with linearized Navier-Stokes equations

2. Linearized Navier Stokes Solver

February 7, 2020, 08:14	Solve fluid flow instability problems using OpenFOAM	#1
Dr. Ravi kant New Member Ravi Kant Join Date: Feb 2020 Posts: 2 Rep Power: 0	How to solve a fluid flow instability problem (i.e. Linearized perturbed Navier-Stokes LNSE equations) using OpenFOAM ? I didn't find any tutorial/documentation by OpenFOAM community so far. Although, recently I have encountered a research article title - Instability and sensitivity analysis of flows using OpenFOAM by Liu Qionga F.Gomezb J.M.Pereza and V.Theofilisa (link - https://www.sciencedirect.com/scienc...00936116300024) However, I have found out that NEK5000 has a dedicated tutorial on LNSE stability equation (link - http://nek5000.github.io/NekDoc/theo...ized-equations Kader likes this.

February 7, 2020, 14:20		#2
HPE Senior Member Herpes Free Engineer Join Date: Sep 2019 Location: The Home Under The Ground with the Lost Boys Posts: 931 Rep Power: 13	No idea, but very interesting. But maybe you can provide a tutorial to the community. __________________ The OpenFOAM community is the biggest contributor to OpenFOAM: User guide/Wiki-1/Wiki-2/Code guide/Code Wiki/Journal Nilsson/Guerrero/Holzinger/Holzmann/Nagy/Santos/Nozaki/Jasak/Primer Governance Bugs/Features: OpenFOAM (ESI-OpenCFD-Trademark) Bugs/Features: FOAM-Extend (Wikki-FSB) Bugs: OpenFOAM.org How to create a MWE New: Forkable OpenFOAM mirror

January 1, 2021, 15:44		#3
Kader New Member Kadi Join Date: May 2014 Posts: 11 Rep Power: 12	Hi Ravi kant, I have the same problem. did you find a solution? Dr. Ravi kant likes this.

April 19, 2021, 06:08	Sorry couldnt find the answer.	#4
Dr. Ravi kant New Member Ravi Kant Join Date: Feb 2020 Posts: 2 Rep Power: 0	Sorry couldnt find the answer, but I found 2 threads seeking similar problem - 1. Problem with linearized Navier-Stokes equations 2. Linearized Navier Stokes Solver

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Question about adaptive timestepping	Guille1811	CFX	25	November 12, 2017 18:38
A problem of incorrect fluid flow field using Openfoam	marialhm	OpenFOAM Running, Solving & CFD	25	June 12, 2017 03:34
Illogical problems with fluid flow	buksi	FLUENT	0	April 13, 2017 07:18
How to use the ODE solvers in OpenFoam to solve CFD problems?	mod0	OpenFOAM Running, Solving & CFD	0	October 14, 2015 03:57
How can i solve orifice flow with OpenFOAM?	spk	OpenFOAM	0	October 2, 2011 18:48