sph -- scalar gradient -- CFD Online Discussion Forums

September 7, 2011, 07:45	sph -- scalar gradient	#1
diedro New Member diego avesani Join Date: Dec 2010 Location: Trento Posts: 12 Rep Power: 15	hi everyone, I have a problem. I would like to compute the gradient of a scalar C(x,y) with SPH. in Liux book is reported that: $\nabla A = \sum (A_I+A_J) \nabla \phi_{IJ} \Delta V$ The question is how can I deal with the Kernel functions? I mean. If the test function is W(r) how can derive in x and y? thank you very much

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