scroll compressor, multi-physics, scroll, compressor, 1D fluid dynamics
Modeling scroll compressors with 1D fluid dynamics often involves the time-consuming exercise of calculating chamber volume and port areas vs. crank angle either manually from CAD or through scripting. In a novel approach, GT-SUITE simulation software is used starting from the original CAD model of the scroll fixed and orbiting involutes to create a 1-dimensional fluid dynamic model automatically. This allows models to be built in minutes while preserving the true CAD geometry. The process of calculating the chamber volume, port area, leakages, and areas required to convert chamber gas pressure to forces/moments on the orbiting scroll will be presented. Additionally, a comparison between the model prediction to test performance on a production automotive air conditioning scroll compressor will be shown.