# how to linearize inner productt of two gradient?

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 August 26, 2013, 07:25 how to linearize inner productt of two gradient? #1 Member   Arjang Behnoud Join Date: Oct 2012 Posts: 57 Rep Power: 6 Hi Dear all I want to know how can I linearise inner product of two gradient? $\triangledown T.\triangledown T\cong ...?$ T is temperature. is there any source, CFD book or something else which I can use? T is temperature. your help is appreciated. Kind Regards, Arjang