Finding Re Number

faisal_durr · August 10, 2011, 06:56

Hello, I am running a test case in Ansys CFX. During solver right at the beginning one gets these numbers for the domains in which they also give a value for the Re number. Is this the final Re number of my test case? I mean the Re number is dependent on the mean value of velocity inside the domain. So even before the simulation has reached convergence and ended and a final value of mean velocity is found how can they give the Re at the beginning of the simulation. If there is another way of finding the Re number for a test case via ANSYS CFX and not through math please tell. Thank you so much.

Josh · September 5, 2011, 15:12

This is the solver Reynolds number. Read about it in the Help files. In general, I ignore it. Calculate your Reynolds number based on the mean flow and a characteristic length.

August 10, 2011, 06:56	Finding Re Number	#1
faisal_durr Member Faisal Durrani Join Date: Nov 2009 Location: England Posts: 62 Rep Power: 18	Hello, I am running a test case in Ansys CFX. During solver right at the beginning one gets these numbers for the domains in which they also give a value for the Re number. Is this the final Re number of my test case? I mean the Re number is dependent on the mean value of velocity inside the domain. So even before the simulation has reached convergence and ended and a final value of mean velocity is found how can they give the Re at the beginning of the simulation. If there is another way of finding the Re number for a test case via ANSYS CFX and not through math please tell. Thank you so much.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[snappyHexMesh] snappyHexMesh won't work - zeros everywhere!	sc298	OpenFOAM Meshing & Mesh Conversion	2	March 27, 2011 22:11
Problems with Courant number (LaunderGibsonTurbulence Model)	sven	OpenFOAM	3	August 10, 2009 04:12
Courant number, patches, etc	oort	OpenFOAM	1	July 24, 2009 19:05
Strong oscillation at transonic mach number	martingariepy	FLUENT	2	May 12, 2009 12:40
[Commercial meshers] Trimmed cell and embedded refinement mesh conversion issues	michele	OpenFOAM Meshing & Mesh Conversion	2	July 15, 2005 05:15

September 5, 2011, 15:12		#2
Josh Senior Member Joshua Counsil Join Date: Jul 2009 Location: Halifax, Nova Scotia, Canada Posts: 366 Rep Power: 19	This is the solver Reynolds number. Read about it in the Help files. In general, I ignore it. Calculate your Reynolds number based on the mean flow and a characteristic length.