How to modify the output of soln-plugin-writer?

[Kiny Wan]

Dear all,

        I want to obtain the root-mean-square density of each point of the whole field and write them out like the pressure, density and velocity in .pyfrs. So, is there any way to change the [soln-plugin-writer] to get the root-mean-square density? This root-mean-square density means the square root of the arithmetic mean of the squares of the density values, which is varying with time.

Yours

Wan

[Giorgio Giangaspero]

Hi Kiny

you can use the time-average plugin ([soln-plugin-tavg]) for that, see the user guide. Have it write the time-average of the density squared, then take the square root as post-processing step in Paraview, for example.

Best

Giorgio

[Kiny Wan]

Hi Giorgio，Thank you. It works.