We have an exciting announcement about badges coming in May 2025. Until then, we will temporarily stop issuing new badges for course completions and certifications. However, all completions will be recorded and fulfilled after May 2025.
General

General

How to build a Fluent UDF library by command line on Windows using the Clang compiler provided with Fluent?

    • FAQFAQ
      Participant

      Since release 2021R1, it is possible to compile a Fluent UDF (test.c test.h) using the provided Clang compiler by command line, following the different steps bellow: 1) if needed, create appropriate environment variables (can be also included in user.txt file -see step 5): FLUENT_INC=C:Program FilesANSYS_Incv211fluent FLUENT_ARCH=win64 FLUENT_UDF_CLANG=builtin FLUENT_UDF_COMPILER=MSVC 2) create your UDF library directory (LIBUDF for example) and the following sub directories: LIBUDF src win64 3ddp_host 3ddp_node 3d_host 3d_node See also the documentation here for more details on the directory’s structure: https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v211/en/flu_udf/flu_udf_compile_directory.html 3) Copy your UDF files test.c and test.h in the src directory 4) For each subdirectory LIBUDF/win64/3ddp_host, copy/paste the file sconstruct.udf located in the directory C:Program FilesANSYS Incv211fluentfluent21.1.0srcudf and rename it : sconstruct 5) For each subdirectory LIBUDF/win64/3ddp_host, create a file user.txt composed of the following lines (example here for 3ddp_host): VERSION=’3ddp_host’ FLUENT_ARCH=’win64′ FLUENT_RELEASE=’fluent21.1.0′ CSOURCES=’ $(SRC)test.c’ HSOURCES=’$(SRC)test.h’ GPU_SUPPORT=’off’ 6) Inside each subdirectory LIBUDF/win64/3ddp_host (for each version), in order to compile your UDF, execute the command line : scons