Abstract: The propulsion and vortical flow of a preswirl pump-jet propulsor (PJP) under effective wake conditions are numerically investigated by improved delayed detached eddy simulation. The numerical results agree well with the ...

Abstract: To address the issue that the engineering application of conventional auxetic honeycomb metamaterials (AHMs) is limited by poor support performance, a novel multi-deformation mode honeycomb (MDMH) is proposed through the ...

Abstract: Lubrication characteristics can greatly affect the service performances of ball bearings. To further clarify the variation law of oil–air distribution in bearing cavity, a new simulation method combining the dynamic and ...