Switching from SIMPLE to COUPLED after certain Time

abhi.jam22 · May 25, 2017, 13:51

Hey,

Is there a way to start the simulation with SIMPLE algorithm and then switch to Coupled Algorithm after certain time steps in an URANS simulation using TUI for a batch job?

Any help is highly appreciated.

LuckyTran · May 26, 2017, 00:40

Just do solve/dual-time-iterate XXXX Y
where XXXX is some number of time-steps that you want and Y is the number of iterations per time-step

Then use the TUI commands to change the models.

You'll find them in /define/models
look for pressure-velocity coupling

Followed by another solve/dual-time-iterate XXXX Y

That's the most straightforward way.

May 25, 2017, 13:51	Switching from SIMPLE to COUPLED after certain Time	#1
abhi.jam22 New Member Abhimanyu Join Date: Jul 2014 Posts: 19 Rep Power: 12	Hey, Is there a way to start the simulation with SIMPLE algorithm and then switch to Coupled Algorithm after certain time steps in an URANS simulation using TUI for a batch job? Any help is highly appreciated.

May 26, 2017, 00:40		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,761 Rep Power: 66	Just do solve/dual-time-iterate XXXX Y where XXXX is some number of time-steps that you want and Y is the number of iterations per time-step Then use the TUI commands to change the models. You'll find them in /define/models look for pressure-velocity coupling Followed by another solve/dual-time-iterate XXXX Y That's the most straightforward way. abhi.jam22 and KaLium like this.

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