STAR-CCM+

CFD-aided design of mixers for the urea injection

The performance of a Selective Catalytic Reduction SCR systems in a modern Diesel engines is strongly related to the urea-water solution injection system, to vaporization of liquid droplets, decomposition of urea vapor to ammonia (NH3) and mixing of the NH3 vapor from the urea injector to the SCR catalyst inlet. To improve the evaporation and the mixing of urea vapor with the exhaust gas, passive flow mixing devices (mixers) are commonly adopted in SCR systems.

Performance optimization of a heat exchanger

Performance optimization of an automotive heat exchanger using Sherpa's method (HEEDS)

Nowadays simulation can be used at different levels of the development process and has demonstrated in many cases its ability to reduce both time and cost for studies: prototypes, mock-up and tests can be reduced to a limited number of pre-selected solutions after a numerical study.

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.

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