CHIMERA volume grid generation within the EROS code

The EROS (European ROtorcraft Software) project was a three-year, European Commission funded, collaborative project between research institutes, unive rsities and industry, with the goal of producing a practical computational fluid dynamics (CFD)-based design tool for rotor blade design. The overlapp ing mesh, or CHIMERA, approach was adopted for structured grid generation w ithin the project. The specifics of volume grid generation in GEROS, the ER OS grid generator, are presented here. The capabilities and effectiveness o f GEROS are demonstrated, and sample grids are shown for fixed-wing, hoveri ng rotor and forward-flight rotor cases.