When I use the coupled and transient flow ，and adopted the adaptive time step, when -- CFD Online Discussion Forums

October 11, 2023, 23:03	When I use the coupled and transient flow ，and adopted the adaptive time step, when	#1
hitzhwan Senior Member Join Date: Dec 2017 Posts: 384 Rep Power: 9	When I use the coupled and transient flow ，and adopted the adaptive time step, when calculating, it will give two "Global Courant Number" in the print line as below, what is the difference? Flow time = 0.05170860804389465s, time step = 5167 94833 more time steps Global Courant Number [Variable Time Step Criteria] : 1.7755 Updating solution at time level N... Global Courant Number [Explicit VOF Criteria] : 0.789826 done. physical-dt 1.0000e-05

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