time and ensemble averaging. -- CFD Online Discussion Forums

May 19, 2011, 04:24	time and ensemble averaging.	#1
Mohsin Senior Member Mohsin Mukhtar Join Date: Mar 2010 Location: South Korea Posts: 249 Rep Power: 17	Hello Could anyone please tell me the difference between time and ensemble averaging. It is used in Reynolds average Navier Stokes (RANS) equations. The equations for RANS have the same general form as the instnataneous Navier Stokes equations, with the velocity and other solution variables now representing ensember-averaged (or time averaged) values. Do time averaged values be used in Unsteady flows and Ensembled average values will be used for Steady flows? Thank you Mohsin

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