LinearInterpolaterhoU amp meshSf exact meaning

arkangel · August 20, 2007, 09:25

Hi

can someone explain to me what are the meaning of the term on this equation for example what does mesh.Sf actually means ,etc

linearInterpolate(rho*U) & mesh.Sf()

hjasak · August 20, 2007, 09:45

mesh.Sf() is the face area vector and the ampersand & represents a dot-product.

Thus:

linearly interpolate rho times U from cell centres to mesh faces and calculate a dot-product of the interpolated density and velocity with the face area vector.

This gives you an approximate for the face flux.

Enjoy,

Hrv

arkangel · August 21, 2007, 05:29

great now makes sense many other things, thanks !!!

August 20, 2007, 09:25	Hi can someone explain to	#1
arkangel Member O R Join Date: Mar 2009 Posts: 50 Rep Power: 17	Hi can someone explain to me what are the meaning of the term on this equation for example what does mesh.Sf actually means ,etc linearInterpolate(rho*U) & mesh.Sf()

August 20, 2007, 09:45	mesh.Sf() is the face area vec	#2
hjasak Senior Member Hrvoje Jasak Join Date: Mar 2009 Location: London, England Posts: 1,905 Rep Power: 33	mesh.Sf() is the face area vector and the ampersand & represents a dot-product. Thus: linearly interpolate rho times U from cell centres to mesh faces and calculate a dot-product of the interpolated density and velocity with the face area vector. This gives you an approximate for the face flux. Enjoy, Hrv __________________ Hrvoje Jasak Providing commercial FOAM/OpenFOAM and CFD Consulting: http://wikki.co.uk

August 21, 2007, 05:29	great now makes sense many oth	#3
arkangel Member O R Join Date: Mar 2009 Posts: 50 Rep Power: 17	great now makes sense many other things, thanks !!!

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