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TransAT Tutorial Manual                         9.2. Forced Convection in an Isothermal Pipe




                     V−Velocity
                         Method : Constant
                         Value : 0

                     Temperature
                         Method : Constant
                         Value : 300

                     Pressure
                         Method : Constant
                         Value : 0





















                                             Figure 9.15: Initial Conditions tab



               User-defined function      User-defined functions will be called to compute the bulk temperature
               along with the Nusselt number and to generate output files with profiles of different variables. In
               this tutorial ready-made user-defined function will be used to compute and output the physical
               quantities of interest.

               User-defined functions should be defined in the User Defined Functions window. In this
               tutorial two UDFs are created from templates. They can be opened by the following steps:

                   • Click    to create a new UDF

                   • Define a valid name in the first entry

                   • Select the template called streamwise output, which is located under Entry Point \ Simula-
                     tion End type of template

                   • Click    to create the UDF






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