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Old   October 12, 2009, 03:18
Default In dire need of a fast reply; Steady state or transient?
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hashem
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hi all
for a two phase modeling of a boat using CFX in order to calculate value of lift and drag, which kind of simulation should be performed? transient or steady state?

thank you all
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Old   October 12, 2009, 06:17
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Glenn Horrocks
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Two phase models or things like boats are generally best run transient. Convergence is difficult in steady state. Transient simulations are very slow, so you will have to be patient.
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Old   October 12, 2009, 13:36
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thank Glenn
why should it be treated as a transient phenomena? i just need lift and drag for a given speed! this case is likely a steady state one.
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Old   October 12, 2009, 18:05
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As I said previously - convergence is difficult in steady state.
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