Which parameters to keep same for a simplified model -- CFD Online Discussion Forums

February 5, 2016, 10:42	Which parameters to keep same for a simplified model	#1
vineet_bhola Member Vineet Bhola Join Date: Jun 2015 Location: Chemnitz, Germany Posts: 49 Rep Power: 10	Hi Guys, I am investigating a flow geometry including heat transfer using a simplified geometry. I do that to make the calculation faster as well as it is easier to pint out the issues in a simple geometry. My concern is as the dimensions change when a build a smaller and simpler model, which parameters should I keep constant? I am guessing average Reynolds number, inlet temperatures etc. I also found something about "Yplus" parameter. But Openfoam provides min, max and average value every patch if I use the command yPlusRAS. Which value should I compare, maximum OR average. Also please let me know any other parameter which I should keep the same. Thanks Vineet

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