... and circle) are comparatively analysed. Findings The progression from hexagonal to circular shapes smooths internal flow, increasing the average mass flow rate by 102.2%, raising the maximum average convective heat transfer coefficient from 79.7 to 97.3 W/(m²·K) and lowering the peak temperature from...

... rotational speeds on oil distribution and thermal evolution. Findings After oil cutoff, the oil volume fraction within the bearing cavity rapidly decreases to a steady state, concurrently accompanied by a sharp decline and stabilization of the convective heat transfer coefficient on the cavity wall...

...Fengxia Lu; Meng Wang; Weizhen Liu; Heyun Bao; Rupeng Zhu Purpose This paper aims to propose a numerical method to calculate the convective heat transfer coefficient of spiral bevel gears under the condition of splash lubrication and to reveal the lubrication and temperature characteristics...

... model with heat transfer terms is established to calculate the convective heat transfer coefficient. The computational fluid dynamics method is used to simulate the jet flow. The convective heat transfer coefficients with different spray parameters are calculated and their variations are obtained...