Data Processing for Pressure Sensitive Paint

Abstract

Practical realisation of Pressure Sensitive Paint Method requires development of appropriate data processing algorithms and software. Usually PSP method is realised as panoramic image acquisition so it's characterisedby huge amount of acquired information: each experimental point requires acquisition and processing up to eight images having spatial resolution up to 1000*1000 pixels. Final information - pressure field is stored again as an image or is transferred on net describing model geometry for convenient data handling. Presentation describes PSP data processing realised in OMS Software Package. This package was developed for Windows environment and includes set of the programs having unique data files interface: Package performs PSP calibration, information files and net generation, pressure field calculation, bitmap image presentation and editing as well as data presentation on the net. Data flow process through the package is illustrated by PSP results on the oscillating pitching model, DASA AADC-model and F7 model. Future development and application of the different PSP methods require additional improvement and new concepts in data acquisition and processing. Some of these concepts which are under development now are presented for discussion