KR422: How can we specify both spatial and temporal temperature profile on a wall zone? (Solution ID: 825)
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In some heat transfer simulations, user will want to impose a temperature profile on a given wall zone that is varying both spatially and temporally. That is, at different times, the spatial profiles are different. Often, user has a tabular data that is obtained from an experiment. Specifying a temporal only OR spatial only can be done using profile. How about both? A UDF has been written to read an input file containing both the spatial and temporal variations of a scalar quantity. The format of this file follows the standard profile format closely and is explained at the end of this file. The UDF contains three sections: ---------------------------------------------------- - ReadFile Type: On-Demand Purpose: To read the input file table - GetData Type: Function Purpose: Interpolate data - Tspec Type: Profile Purpose: Assign data to each face of the face zone How to use it ? ----------------------- - The input file needs to be named as DataFile (can be changed inside the UDF) - Execute the ReadFile on-demand function after reading the case file and before reading the data file. This must be done everytime Fluent is restarted - Hook the Tspec profile function to the temperature field of a wall zone - Iterate as usual The format of input file is given below: ----------------------------------------------------------- - The first line contains the NPtsTm (number of time steps points) and NPtsData (number of data points) - Next line is a blank - Next NPtsTm lines contain the time data - Next line is a blank - Next NPtsData lines contain the x-coordinates data - Next line is a blank - Next NPtsData lines contain the y-coordinates data - Next line is a blank - Next NPtsData lines contain the z-coordinates data - Next line is a blank - Next NptsData lines contain the first scalar data at time#0 - Next line is a blank - Next NptsData lines contain the first scalar data at time#1 - ... so on ... until the last time data is given |
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