interFOAM courant number is less than hand calculated -- CFD Online Discussion Forums

November 22, 2022, 01:20	interFOAM courant number is less than hand calculated	#1
hr_nt New Member HR Join Date: Nov 2022 Posts: 17 Rep Power: 3	I am running a simulation with gas and water mixture using interFOAM. The smallest cell in my mesh is approximately 6e-5m. By considering a courant number of 1 I calculated that the minimum timestep should be 3.27e-4s. However when I run the simulation the timestep adjusted by the solver is in the order of e-7. I want to know why this happens ?

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