A fluid simulation is not something for the impatient. There are some sample files included with the distribution. These should all work if you set your environment variables to point at the correct simulation files.
However, if you have some initial conditions and physical parameters,
BlobFlow
is not guaranteed not to crash. If the computational parameters
are two coarse to capture the relevant physical effects, the computational
representation may overflow, divide by zero or use up all the memory.
Strong numerical tools are fast and accurate but they are not necessarily
bulletproof.