Hello, I have a function for mass flowrate that I want to plot over a time period DT. The velocity is time averaged per timestep dt, not the whole time period, DT. In otherwords the number of timesteps is DT/dt.
mdot(T) = int_A (rho . u(T) . n . alpha(T)) dA mdot(T) is the massflow rate over time (kg/s) int_A () dA is the integral over the area of a slice through the domain (m^2) rho is the density of the particle phase and this is constant (kg/m^3) u(T) is the time averaged velocity of the particle phase for a timestep of dt and varies with time, T (m/s) n is the unit vector normal to the area (-) alpha is the time averaged volume fraction of the particle phase and also varies with time T (-) I think I am pretty sure that I can compute rho . u . n . alpha My process in paraview: Slice > Origin = 0, 0, 0, Normal = 0, 1, 0, Slice Type = Plane This is the part in the brackets of the massflow rate equation. Mean just means time averaged: Calculator > abs(U1Mean_Y)*2900*alpha1Mean Now I must integrate this over the area of the slice. *** Is it correct to use the Filter > IntegrateVariables? *** I then use PlotSelectionOverTime (which I'm pretty sure is right). Kind regards, Andrew
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