The method of computational fluid dynamics (CFD) can be applied in a wide range in the automotive industry. At Volkswagen CFD is used for the development of tail and head lamps. New models for solving thermal radiation transfer, with specular and diffuse reflection and semi-transparent material, combined with high CPU performance, allow accurate simulations in a short time. Simulation of temperature, ventilation and soiling through ventilation vents offers many advantages: Detecting and solving problems in an early stage of the development process is possible. Development times and expensive and complex test drives can be minimized. Costs for building prototypes can be reduced. Different model configurations and climatic environments can be examined very fast and in an easy way. The work of the departments of testing, construction and design can be supported very effectively to develop new lamp concepts. This paper demonstrates the usability and accuracy of temperature and flow simulations for lighting systems. Comparisons of calculations and measurements are presented. The development process of head and tail lamps can be supported very effectively by using CFD. Time periods for development and expensive test drives can be minimized. Compared to test measurements, the simulations with FLUENT and the Solar-Ray-Tracing Model yield good results concerning temperature distribution as well as defogging behaviour. Therefore, CFD simulations can be considered an optimum strategy for the development of head and tail lamps.
Usability of CFD for the development of tail and head lamps
Nutzbarkeit der numerischen Strömungssimulation für die Entwicklung von Heckleuchten und Scheinwerferlampen
2007
9 Seiten, 9 Bilder, 5 Quellen
Aufsatz (Konferenz)
Englisch
Usability of CFD for the Development of Tail and Head Lamps
British Library Conference Proceedings | 2007
|SAE Technical Papers | 1965
TAIL LAMPS (REAR POSITION LAMPS)
SAE Technical Papers | 1977
SAE Technical Papers | 1966
TAIL LAMPS (REAR POSITION LAMPS)
SAE Technical Papers | 1986