If you have more than one functional, the dump_no should be re-incremented, as we're dumping out multiple vtus for the same timestep. This stops the dump_no wrapping around, and giving you  dump numbers like 2147483646.
If you have more than one functional, the dump_no should be re-incremented, as we're dumping out
multiple vtus for the same timestep. This stops the dump_no wrapping around, and giving you 
dump numbers like 2147483646.

FluidityProject/multifluids,FluidityProject/multifluids,FluidityProject/multifluids,FluidityProject/multifluids