Transient with time-varying boundary conditions -- CFD Online Discussion Forums

July 31, 2012, 03:26	Transient with time-varying boundary conditions	#1
Jordi New Member Jordi Join Date: May 2010 Posts: 26 Rep Power: 15	I want to model the behaviour of an accelerating body in air. So I'd like to set up my upstream face as an input with a time-dependent speed. But apparently I can only set constants in boundary values, even if the analysis type is set as transient. I have been suggested running a series of stationary analysis, but what I want to see is just the dynamics of the flow. I'd be happy with just a linear speed with time, something like going from 10 m/s to 100 m/s in 30 seconds. Is it possible to do such analysis?

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