LES problems for nozzle geometry -- CFD Online Discussion Forums

December 7, 2015, 07:41	LES problems for nozzle geometry	#1
Bogdan90 New Member Bogdan Osyka Join Date: Oct 2015 Posts: 4 Rep Power: 11	Hi foamers, I am simulating the flow in a nozzle geometry(see attached file) using the LES turbulence model. The condition for the flow is such that the Re in the throat (the connecting pipe) is 3500, which is a transient flow, however when I simulate I get a perfect laminar flow, which contradicts with benchmarks and RANS simulations for the same problem. I have experimented with different profiles and different LES models but result is pretty much the same. I am really stuck with this problem for more than a month, so I hope I can here some suggestions from you image001.jpg) jbliu2015 likes this.

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