The aerodynamic performance improvement of radial impellers is positive significance to improve the overall hydrogen fuel cell systems (FCS). Our team proposes a multi-degree-of-freedom (MDOF) surface parameterization method for global automatic optimization impeller aerodynamics. MDOF characterized by fewer variables, construction ease, smoothness, good flexibility, and blade strength maintena...

Abstract To explore the effects of engine jet on overall aircraft aerodynamic performance, an numerical simulation method and interference with wing-mounted nacelle were studied. In aspect simulation, based isentropic flow relationship automatic mass-flow matching method, a high-precision / high-efficiency inlet exhaust boundary conditions is achieved. The calculation result in good agreement e...