Simulating flow in a Lid Driven Cavity  English
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 OpenFOAM Tutorials  English

Regarding tranport values in lid driven cavity
Good morning sir,Recently i started using openfoam, i have watched lid driven cavity simulation problem, for the same problem i changed time step to 2000 and higher values, still it is not convergent. Also i changed the methods,schemes and increased my mesh up to 100 but it is not convergent!1) for which time step, the tutorial is convergent ?2) what is the fluid used in that problem ? How can it be 0.01? How to take the value of kinematic viscosity ? 3) your case is Re = 10, suppose for Re = 100, how to take d,V and viscosity for the fluid air i need ? i did like this , d=0.1m, v=1, accordingly viscosity =0.001? my doubt is viscosity cannot be constant in case of air, for different temperatures different viscosities? please tell me how to take viscosity? Is my approach is correct?4) Finally please tell me how to d,v and kinematic viscosity values ? For what time step and values it is convergent.Thank you.
1011M 3040SJan. 23, 2021, 9:04 p.m. Nathan

dimensions of cavity
Q 1) for a square cavity blocks( hex (0 1 2 3 4 5 6 7) (20 20 1) simpleGrading (1 1 1));Mesh size 20x20 then n= 20,suppose blocks( hex (0 1 2 3 4 5 6 7) (40 20 1) simpleGrading (1 1 1));mesh size = 40x 20, then how to take n = ? Q2)i want a parallel plate with length = 10 ft, breadth = 1 ft.convertToMeters 1;vertices( (0 0 0) (10 0 0) (10 1 0) (0 1 0) (0 0 0.01) (10 0 0.01) (10 1 0.01) (0 1 0.01));Is it write sir ?
0809M 2030SJan. 23, 2021, 5:09 p.m. vnarayana.wgl

How to calculate Nusselt number and Residual plots(convergence criteria)
I am using buoyantBoussinesqSimpleFoam solver for natural convection problem. i got few results please help me to draw residual plots(convergence criteria and How to calculate Nusselt number ?
0809M 2030SJan. 23, 2021, 5:09 p.m. vnarayana.wgl

1Introduction to OpenFOAM

2Creating simple geometry in OpenFOAM

3Creating curved geometry in OpenFOAM

Simulating flow in a Lid Driven Cavity

5Supersonic flow over a wedge

62D Laminar Flow in a channel

7Basic Post Processing using ParaView

8Turbulent Flow in a Lid driven Cavity

9Flow over a flat plate

10Simulating Hagen Poiseuille flow

11Downloading and installing Salome

12Creating and meshing a curved pipe geometry in Salome for OpenFOAM

13Exporting geometry from Salome to OpenFOAM

14Introduction to SnappyHexMesh

15Generating Mesh using snappyHexMesh

16Importing mesh file in OpenFOAM

17Installing and running Gmsh

18Creating and Meshing aerofoil in Gmsh

19Creating a sphere in GMSH

20Unstructured mesh generation using Gmsh

21Installing and Running PyFoam

22Using Template files in PyFoam

23Using PyFoam Utilities
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Outline:
Simulating flow in a Lid Driven Cavity using OpenFOAM Problem specification File structure of Lid Driven Cavity Boundary Conditions Meshing the Geometry Checking the geometry and viewing in paraview About the Solver Solving Paraview Streamline contour. Plot U and V velocity Validate result
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