A new visualization system for large scale computational fluid dynamics（CFD）flowfield data

called flow field visualization analysis system or FVAS for short

was presented. FVAS has several complete and practical functions such as three dimensional steady and unsteady flow field data preprocessing and feature extraction

volume rendering

glyph (streamline

isosurface

etc) rendering

texture rendering and so on. Many different data analysis methods and favorable interactions were also supported in the system. FVAS could show the inner-outer flow structure characteristics and complicated physical phenomena with eight ways of demonstration

three kinds of display modes and five types of views. FVAS also implemented animation display function for time-varying data and multi-core parallel rendering. Such cases verify that our system is simple

useful

and strongly universal. A variety of mixed rendering technologies can effectively show the internal responses in flow field data such as combustor dataset

air inlet dataset. Interactions including section and subdivision can show local features and details in multiple views

and analysis tools like chart and graph can statistically analyze the information of special grid cell. 300 test cases were completed in our system test. Compared with the traditional CFD software

our system can promote more than 70% rendering efficiency. The system fault rate is 0.6%

transaction success rate is 100%

and it can effectively accelerate the analysis and statistical process of flow field data.