Thermal Behavior of Lights and LED based on Automotive Lamp
Chialin Tseng 1*
1 Department of ANSYS Engineering & Sales, CYBERNET SYSTEMS TAIWAN
*Contact email address: fanxingjia@csvw.com
Abstract—An procedure based on Computational Fluid Dynamics algorithms has been developed in order to evaluate the thermal behavior of automotive rear lamps, and to improve their concept and design. A thermal analysis was performed with the commercial computational fluid dynamics package ANSYS Fluent. The steady-state analysis accounts for natural convection flow and radiation within the entire fluid domain. Conduction is taken into account within all the rearlamp components (lens, bulbs, …) and radiation is modeled by a ray-tracing approach, solved with a Monte-Carlo scheme. In this work, the results for a completed rear lamp with halogen bulbs is reported. Moreover, the case of innovative LED-based lighting functions is also studied.
Keywords-ANSYS Fluent, Radiation, Monte-Carlo, LED
