Does anyone know anything about "bad_alloc" errors in starccm+?? Occurs when I try and run the model. What could be causing this? How do I prevent it?! Thanks

save your model after meshing. shutdown ccm+ and then restart it.

bad_alloc is the standard c++ out of memory error. It probably failed to allocate enough space for the solution data.

As TG wrote, if you just generated the mesh, re-starting may allow you to proceed. If not, you may need more memory or a smaller mesh (fewer cells).

Now THAT sounds like something Micro$oft would offer you as a solution to bad code!

try changing to explicit! and change the Courant no to very small for the begining say 0.1

In fact this problem is worse on windows for various reasons. Try googling "heap fragmentation windows" ...