I would like to ask how i can get velocity value for each node (meshing) when i using Fluent 6.1 software.I am created my object using gambit and try to predic velocity value and vortex shedding behind the building/bluff body.I hope u can tech me how to get that value.

use file->write -> profile

There is a surface that represents the mesh. Usualy it is named "default-interior:1". For every volume in your geometry there is this surface.

Then select the values that should be written (velocity,...) and thats it!

Ralf

Thank you very much Ralf.Just one question here.If i want to get all value for every node (for one surface), can i represent it in m.excell.

Second question.Can i put velocity value to each node in my surface when i done my meshing?

Hi,

representing the profile files in excel is possible... but with a lot of work. Fluent prints the values all behind each other, so u must resort them in excel - and that might be impossible for a large number of cells. Someone send me a matlab file, that can read the Fluent profile file, it is attached.

The second question, if there is a possibility to use Fluent valus in gambit?? I don't thing so...

Best wishes Ralf

___________

function [flaeche,vars,werte]=lies_fluent_profil(datei)

% Datei öffnen

fid=fopen(datei,'r');

% alle Flächen

for f=1:inf

% Ende, wenn Dateiende erreicht

if feof(fid)

if length(flaeche)==1

werte=werte{1};

end

fclose(fid);

return

end

% Fläche bestimmen

zeile=fgetl(fid);

a=find(zeile==' ');

flaeche{f,1}=zeile(3:a(1)-1);

% Anzahl der Punkte bestimmen

n=str2num(zeile(a(end)+1:end-1));

for i=1:inf

zeile=fgetl(fid);

if length(zeile)==1

werte{f,1}=sortrows(dat,[1 2 3]);

clear dat,

break,

end

% Namen der Größen bestimmen

if f==1 && length(zeile)>1

vars{i,1}=zeile(2:end);

end

% Werte auslesen

dat(:,i)=fscanf(fid,'%f',n);

zeile=fgetl(fid);

zeile=fgetl(fid);

end end

Thanks Ralf for the coding..Ralf,can i want put value for each node at my surface,i mean in Fluent. Ralf, if if have any problem,i will email u again..i quiet new in this field. i hope u can tech me...

hai, I would like to asking u about stremline.So can u tech me how to display the stremline in fluent.I want see structure of vortex behind the bluff body....

Please help me...

[machaae]

Originally Posted by Ralf Schmidt
;128287

Hi,

representing the profile files in excel is possible... but with a lot of work. Fluent prints the values all behind each other, so u must resort them in excel - and that might be impossible for a large number of cells. Someone send me a matlab file, that can read the Fluent profile file, it is attached.

The second question, if there is a possibility to use Fluent valus in gambit?? I don't thing so...

Best wishes Ralf

___________

function [flaeche,vars,werte]=lies_fluent_profil(datei)

% Datei öffnen

fid=fopen(datei,'r');

% alle Flächen

for f=1:inf

% Ende, wenn Dateiende erreicht

if feof(fid)

if length(flaeche)==1

werte=werte{1};

end

fclose(fid);

return

end

% Fläche bestimmen

zeile=fgetl(fid);

a=find(zeile==' ');

flaeche{f,1}=zeile(3:a(1)-1);

% Anzahl der Punkte bestimmen

n=str2num(zeile(a(end)+1:end-1));

for i=1:inf

zeile=fgetl(fid);

if length(zeile)==1

werte{f,1}=sortrows(dat,[1 2 3]);

clear dat,

break,

end

% Namen der Größen bestimmen

if f==1 && length(zeile)>1

vars{i,1}=zeile(2:end);

end

% Werte auslesen

dat(:,i)=fscanf(fid,'%f',n);

zeile=fgetl(fid);

zeile=fgetl(fid);

end end

Hi Ralf,

I was reading this post because I need to plot contours of fluent data using matlab. This piece of code works well, I tried, but it just open the data file and I dont know waht do after. Do you know how to include a contours function? or what to do after reading the profile file and then to plot something?

thanks a lot!