【 Background 】

Gearboxes are high-speed and highly precise mechanical systems. The heat generated during rotation must be dissipated by lubricating oil, which then passes through an oil cooler to remove the waste heat. However, at high rotational speeds, oil churning losses become significant, and the aerodynamic effects induced by the rotating gears are substantial. Aerodynamics, heat transfer, high-speed rotation, tiny gear clearances, and free oil–air interfaces all intertwine to create a complex analysis challenge—one that traditional simulation tools struggle to handle. Fortunately, Altair nanoFluidX solves this problem!

【 Results 】

In this project, Altair nanoFluidX was used to analyze the lubrication and cooling performance of a high-speed gearbox for an aerospace engine. By observing the simulation results—including lubricant distribution, the fountain effect between gears, and local hot spots—we optimized the number and placement of oil injection ports, as well as the flow rate and velocity at each port, ensuring that all regions operate within safe temperature limits.

【 Technical Highlights 】

nanoFluidX uses the SPH (Smoothed Particle Hydrodynamics) method—no meshing required, drastically reducing model preparation time.
Fast computation significantly shortens product development cycles.
Unlike earlier particle-based tools, Altair nanoFluidX now supports thermal analysis, enabling accurate prediction of temperature distributions.

Richin Tech is the "expert in CAE and AI data analytics", and we have completed many successful case studies.

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