[studen]

i have a udf for variable viscosity function in .cpp format can anyone tell me how make fluent read .cpp files i read in the udf manual it only read .c extension.



the program in c++ is running fine, do i have to change it to work in fluent, or just load it as udf.

[Sixkillers]

You will have to rewrite it into C. From C++ it should be so hard.

[shk12345]

hi
I think you know copy paste .

copy the content of the file
opne a new notepad and paste it there with name.c

hoke it in fluent and run

you are done

shk

[Sixkillers]

Well I think it depends on how the UDF is written. If it is using C++ features, C compiler won't be able to compile it So if you can share your UDF with us.

[studen]

Thank you guys for the replies, shk12345 i had tried that, but c++ syntax is different from c suchas println can't be used in c, we have to opt for pintf and many other commands,


sixkillers thank you, i wrote it in c with some help and the function works i hooked it fluent and its working fine there too.


now am facing a new probs, in fluent i have assigned the wall temperature as 25 and the fluid temperature as 45, am doing working on natural convection cooling, so after a certain amount of time the temperature inside the cavity will become constant at 25. but when i check for temp contour and velocity countours at particular intervals of time, i dont get temp range from 25 to 45, fluent contour plots only show temp range from 25 to 31 , can anyone explain why this is happening, and how can i get the o/p for my desired, range (the one i want), i tried changing the setting in contours by removing auto range and manually set min to 25 and max to 45, but the plots are not matching with the previous work.

help and suggestion pls,

thnx in advance