code_saturne User's Forum

Hello, Maybe I was not well explaining my problem. I did not use mesh extrusion of code_saturne to build mesh, in fact the extruded mesh was already built with salomé. So I think it is a problem related to periodic boundary condition. I will test the version 5.0.9 and let you know if the problem is ...

I add also .xml file and the mesh file for test case 2 (4 cells in Z direction).

Hello, I have a test case involving the simulation of flow around a cylinder. For this test, I use 3D meshes extruded from a 2D one. For the first mesh with 10 cells in the z direction, when I run the simulation I got an error "*** Error in `./cs_solver': malloc(): memory corruption: 0x00000000...

Hello,

Thanks a lot for your response, which confirms me that I can explore this approach. I'll make a try and let you know what I get.

Best regards,
Lei

Hello, Thanks a lot for your response! As you suggested, I changed the omega wall bc from 120 to 6.75, however the numerical results show no improvements. You can find clptur.f90 in the attached file, where instead of using "call set_neumann_scalar", I use "call set_dirichlet_scalar&q...

Hello, I would like to know if it is possible to perform a multiple Code_Saturne instances coupling. My problem setting is as follows: For each instance, I will have an oscillating cylinder interacting with the fluid (it is a 2D simulation, as there is only one cell in the z direction). Then the ins...

Hello, Thanks for checking with your colleagues! I have tried k-omega SST model with wall function using a coarse mesh (y+ around 30), which worked well. However, as I want to resolve explicitly the viscous boundary layer in order to obtain the flow separation point exactly, the better solution shou...

Hello, I'm using k-omega SST turbulence model to simulate flow around a circular cylinder (code_saturne 5.0.4) in order to study the vortex shedding phenomenon. I use a refined mesh to ensure that y+ is less than 1, so that no wall function is necessary. The simulation results in a much larger force...

Hello,

Finally I have succeeded to run a parallel simulation on the cluster by following the instructions given in https://www.hpc.ntnu.no/display/hpc/Tut ... de+Saturne.

Best regards,
Lei

Hello, I'd like to simulate an inclined inlet flow (flow is not normal to the boundary) in a rectangular domain with code_saturne. The numerical result is shown in the attached file, as expected for this simple test case, the velocity is uniform, however the pressure field is not uniform, which seem...