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December 8, 2011, 13:40	DNS: how to compute nonlinear term in the spectral kinetic energy equation	#1
magicsquirrel New Member Join Date: Jul 2011 Posts: 8 Rep Power: 14	Dear CFD Onliner, What is the best way to compute the nonlinear term in the spectral kinetic energy equation in tri-periodic Fourier DNS code ? I mean the T(k)=-i sum_{k+p+q=0} P_ijm(k) u_j(p) u_m(q) u_i(k) with k,p,q waves numbers in R^3. Cheers

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dns, energy, fourier, nonlinear, transfer

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