... fan performance verification by adopting simulation flow field analysis software for rotary machinery’s hexahedral-structure numerical grid.2.Impeller is ... requirements by system.4.3D definite element method is adopted for analyzing strength, displacement, strain and modality of impeller, and ... and Dying, Medicine, Chemistry, Water Source with Atom Radioactive Pollution A SPECIALl FAN FOR MVR(MVR FAN)