Comparing Air numerical results with water experimental results

cristian2009es · June 28, 2014, 06:54

In my work plan I have to Compare Air numerical results with Water experimental results to study the mixed convection effects on the flow structure in a simple geometry.

Is it normal to compare Numerical results performed by Air with experimental results use a Water model but keep the same Re and Gr with respect to Pr of each fluid and all their other properties such as density, viscosity..etc. I mean comparing dimensionless velocity fields and velocity components?

Do you know similar article or any bibliography for a similar case where authors compared numerical AIR results with experiment WATER results Or vice versa?

I appreciate all answers
Thanks in advance and kind regards

ghorrocks · July 2, 2014, 18:11

Yes, this is normal. It is a standard engineering approach - and is the reason scale models can be built to accurately reproduce the flow fields of the full sized device. See Similitude (http://en.wikipedia.org/wiki/Similitude_%28model%29)

June 28, 2014, 06:54	Comparing Air numerical results with water experimental results	#1
cristian2009es New Member George Join Date: Jan 2013 Posts: 1 Rep Power: 0	In my work plan I have to Compare Air numerical results with Water experimental results to study the mixed convection effects on the flow structure in a simple geometry. Is it normal to compare Numerical results performed by Air with experimental results use a Water model but keep the same Re and Gr with respect to Pr of each fluid and all their other properties such as density, viscosity..etc. I mean comparing dimensionless velocity fields and velocity components? Do you know similar article or any bibliography for a similar case where authors compared numerical AIR results with experiment WATER results Or vice versa? I appreciate all answers Thanks in advance and kind regards

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July 2, 2014, 18:11		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,781 Rep Power: 143	Yes, this is normal. It is a standard engineering approach - and is the reason scale models can be built to accurately reproduce the flow fields of the full sized device. See Similitude (http://en.wikipedia.org/wiki/Similitude_%28model%29)