[Lapidus]

Hello everybody,

It is a pleasure to finally post in the forum after having read for so long. Let´s go right to it.

At the moment I have a structure meshed at 7 million cells. When I try to mesh finer (I should, it seems to coarse for the study), right at the point where the volume mesh is being created, I get the following error message in red letters:

A request for memory failed. This is typically due to insufficient virtual memory. Command: GenerateVolumeMesh

Here is the thing, the PC has 32GB of RAM, so that doesn´t seem to be the problem. Yet, the memory is failing somehow. Does anybody know what could be happening? Apparently what is underlined in red in the image reaches its maximum.

[steve lee]

Hi,

Maybe.. your new mesh continua setting requires too many cells..

Don't try to make volume mesh directly.

Try to make surface mesh first.

[me3840]

Your memory usage is already 84%. STAR-CCM+ requests to allocate more memory from the system, and the system denies the request as it would take you over 100%. You need to coarsen the mesh, get more memory, or free memory in usage already.


Remember doubling the surface size of a structured mesh will not double the number of cells, it will octuple it, since 2^3=8. 56M cells is far too much for 32GB of memory to handle.

[Lapidus]

Thank you for the insight! At the moment there are other things that need polishing in the simulation, so I´ll keep the suggestions for the near future.