Code covered by the BSD License

PIVMat 3.02

Frederic Moisy (view profile)

27 Apr 2006 (Updated )

A PIV Post-processing and data analysis toolbox

statvec_disp (PIVMat Toolbox)
statvec_disp (PIVMat Toolbox)
 PIVMat Function Reference << Prev | Next >>
statvec_disp
Displays statistics of vector fields.

Description ```statvec_disp(V) displays statistics (mean, rms and standard deviation) of a set of vector fields as a function of the field number. The first 3 subplots show the evolution of the velocity statistics, for each velocity component: - Mean velocity <Vx>, <Vy>, <Vz> (where <> is the spatial average) - rms velocity <Vx^2>^(1/2), <Vy^2>^(1/2), <Vz^2>^(1/2) - standard deviation <(Vx-<Vx>)^2>^(1/2), <(Vy-<Vy>)^2>^(1/2), etc. The last subplot shows the energy (summed over the 2 or 3 velocity components): E_total = (<Vx^2> + <Vy^2> + <Vz^2>) / 2 E_mean = (<Vx>^2 + <Vy>^2 + <Vz>^2) / 2 E_turbulent = (<(Vx-<Vx>)^2> + <(Vy-<Vy>)^2 + <(Vz-<Vz>)^2>) / 2 (note that E_total = E_mean + E_turbulent) statvec_disp(V,SMOOTH) smoothes the statistics over SMOOTH consecutive vector fields. Use SMOOTH=1 for no smoothing (by default). Use SMOOTH=0 for smoothing over the whole fields (display only one point). Example v = loadvec('*.vc7'); statvec_disp(v,10); See Also statf, histf, histvec_disp. Published output in the Help browser showdemo statvec_disp ```
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