[daylen]

Hi, im simulating flow around a box, to do that i modified the example case WindAroundBuildings, when i run pimpleFoam, i get pressure residuals oscillations, how do i fix this?
Case folder: https://www.dropbox.com/s/3gs1vw1ojd...pf122.zip?dl=0

[Fouch]

Hi,


This is not oscillation. This is because you use correctors.


Try the code below to plot your residuals.

set logscale y
set title "Residuales vs iteración caso circular 3 transiente"
set ylabel 'Residual'
set xlabel 'Iteración'
plot "< cat log | grep 'Solving for Ux' | cut -d' ' -f9 | tr -d ','" title 'Ux' with lines,\
"< cat log | grep 'Solving for Uy' | cut -d' ' -f9 | tr -d ','" title 'Uy' with lines,\
"< cat log | grep 'Solving for Uz' | cut -d' ' -f9 | tr -d ','" title 'Uz' with lines,\
"< cat log | grep 'Solving for omega' | cut -d' ' -f9 | tr -d ','" title 'omega' with lines,\
"< cat log | grep 'Solving for k' | cut -d' ' -f9 | tr -d ','" title 'k' with lines,\
"< cat log | grep 'Solving for p' | cut -d' ' -f9 | sed -n 'p;N' | tr -d ','" title 'p' with lines
pause 1
reread

BR

[daylen]

it works, thanks