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2 point spatial correlation and energy spectra

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March 26, 2014, 01:32	2 point spatial correlation and energy spectra	#1
chandra shekhar pant Senior Member chandra shekhar pant Join Date: Oct 2010 Posts: 220 Rep Power: 16	Hi everyone, I have a 2 d square periodic domain in which velocities are known at each grid points. I have to determine radial correlation function variation with distance "r" , given by u(i)*u(i+r). Also have to find out energy spectra variation with wave number. I am using qtoctave for post-processing the data.. Please tell me the detail of the calculation procedure. THANKS

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