Abstract:

A new dynamic overset unstructured grids method is developed to simulate the unsteady flow field around helicopter. The developed neighbor to neighbor searching algorithm based on the advancing front method is used for donor searching. Unsteady Euler equations are solved on overset unstructured grids by an explicit dual time-stepping, Jameson finite volume method.

Key words: computational , fluid , dynamics,  , overset , unstructured , grid,  , helicopter , rotor,  , unsteady , flow , field