
A Fluent User Defined Function (UDF) to extract and save portions of a time-accurate simulation is presented. This UDF, called the Fluent VTK Extractor (FVE) makes use of the Visualization Toolkit (VTK) library to manipulate unstructured grid data and perform file IO. The FVE UDF is applied to three unsteady flow problems. Data storage reductions of up to 99% and runtime reductions of up to 15% are observed.
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