A canned program (so called, Code) consists of three parts as follow ; pre-processor, main program and post-processor.
It is difficult for the beginners to run the main program without pertinent knowledge of the main program structure. Nowadays a progress has been made in developing the pre-processor and post-processor in order for the users to operate the main program with ease.
Accordingly, we need to construct accessory programs for pre-processing and post-processing in line with CFD code development. The pre-processor transfers the input data to the main program, whereas the post-processor displays the output data from the main program in a convenient form for the user.
In the present study, we develop a pre-processor and a post-processor for a main program to analyse two-dimensional fluid flows. The canned program developed through this study has been proved very efficient and convenient, which has been exemplified by a test application to a two-dimentional curved channel flow problem.