STAR-CCM+

Conjugated heat transfer simulation of a CVT

Within this work the thermal aspects of a continuously variable transmission (CVT) are investigated. Similar studies are hardly available in the current literature. Especially due to increasing engine power the design of a sufficient cooling system for the CVT is very important as the component temperatures are rising as well. Computational Fluid Dynamics (CFD) can be used to analyse the heat transfer effects within an enclosed CVT unit to ensure proper cooling.

Oil splash simulation in final drive with Overset

The reduction of CO2 emissions is one of the biggest challenges to the automotive industry. An optimally designed driveline with effective cooling and lubrication provides substantial CO2 reduction. The cooling and lubrication performance is critical to the functionality and durability of vehicle drive units, such as transmissions and differentials. Final drive includes gears, bearings and shafts to transmit power from the engine to the wheels. Final Drives rely on splash lubrication where the oil flow is driven by the rotation of the gears and guided to important positions.

Pulley blade shape optimization using Optimate+

Target is to design optimized blade shape on a pulley in order to cool down a rubber that drag a belt.

The blade shape designs are optimized using Optimate+ and  STAR-CCM+® 3D CAD model.

Parameters are defined and 100 simulations are launched in order to find the best design.

Steady simulations are performed with rotation, and the best design giving high heat transfer coefficient and high velocity is found.

Pages