Lid Driven Cavity Flow
The test case described in here meets the typical reference problem for validating cfd software in a confined domain (Files for this test case can be downloaded from here).
The domain used in this test case is a square (whose edge lengh being 1 m) containing an incomressible flow.
The boundary conditions applicable to the domain are:
Solid wall (u1=0 m/s, u2=0 m/s) on all surfaces (walls) except to the upper wall.
Moving wall (u1= 1 m/s, u2= 0 m/s) on the upper wall.
Initial conditions:
The velocity components at every point of the domain are zero, except points in the upper lid with an initial condition equal to u1= 1 m/s, u2 = 0 m/s.
A picture of the domain used can be found in the next drawing
The project to use in DynamFluid to carry out the simulation can be found in the following link project. It contains a zip file with all the files needed to run the simulation.
Once, the files are decompressed, start the DynamFluid application, where the following dialog Box is shown:
Then, press the button which is on the right of the "Location" caption. This action will show a dialog box for selecting the folder (directory) where the project files have been unzipped.
 Afterwards, press the botton right to the "Project Name" caption, which will open a File Dialog box to select the file LidDrivenCavity100x100tria.vac. Then press the Ok button which will open the DynamFluid project.
The elements used in the mesh used for simulating this problem have been TRIA elements. A picture of the mesh used can be found next.
The project has been simulated for several Reynolds numbers (1000, 2500 and 5000). The results have been compared with Ghia, Ghia, and Shin (1982), "High-Re solutions for incompressible flow using the Navier-Stokes equations and a multigrid method", Journal of Computational Physics, Vol. 48, pp. 387-411. The results obtained and the comparison can be found in the next drawings.
Reynolds 1000
Reynolds 2500
Reynolds 5000
