# does anyone know what does flowType do?

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 April 1, 2013, 15:55 does anyone know what does flowType do? #1 Senior Member     Ehsan Join Date: Oct 2012 Location: Iran Posts: 2,210 Rep Power: 19 i used flowType command.how can find type of flow(shear flow,with or without circulation or fully turbulent mentioned somewhere i saw) from the numbers like: Code: ```0.07651246272745461 0.009874601375924783 0.4152505236808813 0.9556226864937011 0.9416049188595975 0.5856388528734834 0.2512780734589708 0.2002043050379488 0.2956873682252182 0.344476903828302 0.392744880848549 0.4422645731141795 0.5060221916933719 0.603670873234636 0.791199009088522 0.728309604866278 0.3407973861953704 0.9500353914061376 0.3114390527424502 0.1782654103206394 0.1555218835283287 0.162709215687532``` it has resulted. Last edited by immortality; April 8, 2013 at 05:31.

 April 6, 2013, 18:15 #2 Senior Member     Ehsan Join Date: Oct 2012 Location: Iran Posts: 2,210 Rep Power: 19 nobody knows?

 April 7, 2013, 09:07 #3 Senior Member   Paulo Vatavuk Join Date: Mar 2009 Location: Campinas, Brasil Posts: 161 Rep Power: 10 Hi Immortality, In the Doxygen C++ documentation you will find the following explanation for flowType: Description Calculates and writes the flowType of velocity field U. The flow type parameter is obtained according to the following equation: lambda = (|D| - |Omega|)/(|D| + |Omega|) -1 = rotational flow 0 = simple shear flow 1 = planar extensional flow I don't know the exact meaning of D and Omega, but it seems that D is a measure of the angular deformation of the fluid particle and Omega is a measure of it's rotation. Best Regards, Paulo

 April 7, 2013, 13:26 #4 Senior Member     Ehsan Join Date: Oct 2012 Location: Iran Posts: 2,210 Rep Power: 19 thanks.I has saw that.but what does .37 mean it not exactly 0,-1,1 ? is this somewhat like 0 and somewhat like 1 propounded numbers?

 April 8, 2013, 05:30 #5 Senior Member     Ehsan Join Date: Oct 2012 Location: Iran Posts: 2,210 Rep Power: 19 what's the usage of it?does it have an equivalent parameter in CFD?has anyone encountered it in CFD texts anywhere?

November 12, 2014, 15:31
#6
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Mehid
Join Date: Nov 2013
Location: Tehran-Iran
Posts: 22
Rep Power: 5
Quote:
 Originally Posted by immortality what's the usage of it?does it have an equivalent parameter in CFD?has anyone encountered it in CFD texts anywhere?
Hi Ehsan,

have you ever found out about what would be the usage of "flowType"?
I mean what's the benefit of this command?

Best,
Mehdi.

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