finding radial velocity using continuity equation -- CFD Online Discussion Forums

October 13, 2017, 08:37	finding radial velocity using continuity equation	#1
bala_gk1988 New Member Balajee Join Date: Dec 2013 Posts: 13 Rep Power: 12	I want to calculate radial velocity from axial velocity using continuity equation w(scalar) is known (axial velocity). I want to calculate radial velocity v(scalar) assuming azimuthal component is zero. (Theta is the angle of the line connecting cell center to the origin in the xy plane). So from continuity equation I obtain $\frac{\partial v(cos \Theta) }{\partial x} + \frac{\partial v(sin \Theta)}{\partial y} = - \frac{\partial w }{\partial z}$ It seems the process involves solving a set of linear equations. Code: fvScalarMatrix vEqn ( fvm::__________ ); solve(vEqn == __________) Can someone help me Thanks

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