[enginpower]

Hello,
I run the tutorial angledDuctExplicitFixedCoeff found among the tutorials of rhoSimpleFoam.

I created this script to plot residuals:

#!/bin/bash

foamLog log >/dev/null

gnuplot -persist > /dev/null 2>&1 << EOF
        set logscale y
        set title "Residual vs. Iteration"
        set xlabel "Iteration"
        set ylabel "Residual"
        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 U' | cut -d' ' -f9 | tr -d ','" title 'U' with lines,\
         "< cat log | grep 'Solving for e' | cut -d' ' -f9 | tr -d ','" title 'e' with lines,\
             "< cat log | grep 'Solving for p' | cut -d' ' -f9 | tr -d ','" title 'p'   with lines,\
         "< cat log | grep 'Solving for k' | cut -d' ' -f9 | tr -d ','" title 'k' with lines,\
         "< cat log | grep 'Solving for epsilon' | cut -d' ' -f9 | tr -d ','" title 'epsilon' with lines,\
         "< cat log | grep 'Solving for T' | cut -d' ' -f9 | tr -d ','" title 'T' with lines,\
         "< cat log | grep 'Solving for nut' | cut -d' ' -f9 | tr -d ','" title 'nut' with lines,\
         "< cat log | grep 'Solving for rho' | cut -d' ' -f9 | tr -d ','" title 'rho' with lines,\
         "< cat log | grep 'Solving for alphat' | cut -d' ' -f9 | tr -d ','" title 'alphat' with lines
EOF

After I run the case and all is ok, I run $./Residuals where 'Residuals' is the name of the script file, but I can't see any plot, neither any error from the terminal.

Why?
Do you have the same? Could you check, please?

Thanks

[tareqkh]

This should be easy if you install gnuplot. If you already have gnuplot in your system, just type up

:~$ gnuplot Residuals

It should work with you!

[enginpower]

It returns:

gnuplot Residuals

foamLog log.rhoSimpleFoam >/dev/null
^
"Residuals", line 3: invalid command

Actually I corrected the script in the file Residuals as:

#!/bin/bash

foamLog log.rhoSimpleFoam >/dev/null

gnuplot -persist > /dev/null 2>&1 << EOF
        set logscale y
        set title "Residual vs. Iteration"
        set xlabel "Iteration"
        set ylabel "Residual"
        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 U' | cut -d' ' -f9 | tr -d ','" title 'U' with lines,\
         "< cat log | grep 'Solving for e' | cut -d' ' -f9 | tr -d ','" title 'e' with lines,\
             "< cat log | grep 'Solving for p' | cut -d' ' -f9 | tr -d ','" title 'p'   with lines,\
         "< cat log | grep 'Solving for k' | cut -d' ' -f9 | tr -d ','" title 'k' with lines,\
         "< cat log | grep 'Solving for epsilon' | cut -d' ' -f9 | tr -d ','" title 'epsilon' with lines,\
         "< cat log | grep 'Solving for T' | cut -d' ' -f9 | tr -d ','" title 'T' with lines,\
         "< cat log | grep 'Solving for nut' | cut -d' ' -f9 | tr -d ','" title 'nut' with lines,\
         "< cat log | grep 'Solving for alphat' | cut -d' ' -f9 | tr -d ','" title 'alphat' with lines
EOF

but again it doesn't work!

The log file generated by Allrun script is log.rhoSimpleFoam, but nothing

Thanks

[tareqkh]

Hi,

Try this file see if it works with you;

Residuals.zip

Best,

[enginpower]

I downloaded your file in my case folder:
~/OpenFoam/angledDuctExplicitFixedCoeff

Then I tried the command:

$ gnuplot Residuals
cat: log.simpleADFoam: No such file or directory
"Residuals", line 10: warning: Skipping data file with no valid points
cat: log.simpleADFoam: No such file or directory
"Residuals", line 10: warning: Skipping data file with no valid points
cat: log.simpleADFoam: No such file or directory
"Residuals", line 10: warning: Skipping data file with no valid points
cat: log.simpleADFoam: No such file or directory
"Residuals", line 10: warning: Skipping data file with no valid points
cat: log.simpleADFoam: No such file or directory
"Residuals", line 10: warning: Skipping data file with no valid points
cat: log.simpleADFoam: No such file or directory
"Residuals", line 10: warning: Skipping data file with no valid points

plot "< cat log.simpleADFoam | grep 'Solving for Ux' | cut -d' ' -f9 | tr -d ','" title 'Ux' with lines,     "< cat log.simpleADFoam | grep 'Solving for Uy' | cut -d' ' -f9 | tr -d ','" title 'Uy' with lines,     "< cat log.simpleADFoam | grep 'Solving for Uz' | cut -d' ' -f9 | tr -d ','" title 'Uz' with lines,     "< cat log.simpleADFoam | grep 'Solving for omega' | cut -d' ' -f9 | tr -d ','" title 'omega' with lines,     "< cat log.simpleADFoam | grep 'Solving for k' | cut -d' ' -f9 | tr -d ','" title 'k' with lines,     "< cat log.simpleADFoam | grep 'Solving for p' | cut -d' ' -f9 | tr -d ','" title 'p' with lines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 ^
"Residuals", line 10: x range is invalid

I also tried

~/OpenFoam/angledDuctExplicitFixedCoeff$ ./Residuals./Residuals: line 5: plot: command not found
./Residuals: line 11: pause: command not found
./Residuals: line 12: reread: command not found

but obviously it doesn't work

[tareqkh]

Originally Posted by enginpower

I downloaded your file in my case folder:
~/OpenFoam/angledDuctExplicitFixedCoeff

Then I tried the command:

$ gnuplot Residuals
cat: log.simpleADFoam: No such file or directory
"Residuals", line 10: warning: Skipping data file with no valid points
cat: log.simpleADFoam: No such file or directory
"Residuals", line 10: warning: Skipping data file with no valid points
cat: log.simpleADFoam: No such file or directory
"Residuals", line 10: warning: Skipping data file with no valid points
cat: log.simpleADFoam: No such file or directory
"Residuals", line 10: warning: Skipping data file with no valid points
cat: log.simpleADFoam: No such file or directory
"Residuals", line 10: warning: Skipping data file with no valid points
cat: log.simpleADFoam: No such file or directory
"Residuals", line 10: warning: Skipping data file with no valid points

plot "< cat log.simpleADFoam | grep 'Solving for Ux' | cut -d' ' -f9 | tr -d ','" title 'Ux' with lines,     "< cat log.simpleADFoam | grep 'Solving for Uy' | cut -d' ' -f9 | tr -d ','" title 'Uy' with lines,     "< cat log.simpleADFoam | grep 'Solving for Uz' | cut -d' ' -f9 | tr -d ','" title 'Uz' with lines,     "< cat log.simpleADFoam | grep 'Solving for omega' | cut -d' ' -f9 | tr -d ','" title 'omega' with lines,     "< cat log.simpleADFoam | grep 'Solving for k' | cut -d' ' -f9 | tr -d ','" title 'k' with lines,     "< cat log.simpleADFoam | grep 'Solving for p' | cut -d' ' -f9 | tr -d ','" title 'p' with lines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 ^
"Residuals", line 10: x range is invalid

I also tried

~/OpenFoam/angledDuctExplicitFixedCoeff$ ./Residuals./Residuals: line 5: plot: command not found
./Residuals: line 11: pause: command not found
./Residuals: line 12: reread: command not found

but obviously it doesn't work

You need to change what is inside the file from

log.simpleADFoam to your solver i.e. log.rhoSimpleFoam.

Make sure also when you run you simulation, you have to make
log.rhoSimpleFoam. For instance,

rhoSimpleFoam > log.rhoSimpleFoam.

It should work with you now.

Cheers,

[enginpower]

ok, now it works!

Thanks a lot for your help