Main Article Content

Matjaz RAMŠAK Matej ZADRAVEC Jure Ravnik Matjaž Hriberšek Jernej Slanovec


Efficiency of cooling fins inside of a LED fog lamp is studied using CFD. Diffusion in heat sink, natural convection and radiation are the main principles of the simulated heat transfer. The Navier-Stokes equations were solved by the CFD code, including Monte Carlo radiation model and no additional turbulence model was needed. The numerical simulation is tested using the existing lamp geometry and temperature measurements. The agreement is excellent inside of few degrees at all measured points. The main objective of the article is to determine the cooling effect of various heat sink parts. Based on performed simulations, some heat sink parts are found to be very ineffective. The geometry and heat sink modifications are proposed.

While radiation influence is significant, compressible effects are found to be minor.

Article Details

How to Cite
RAMŠAK, Matjaz et al. COOLING ANALYSIS OF A LED AUTOMOTIVE FOG LAMP. Thermal Science, [S.l.], mar. 2017. ISSN 2334-7163. Available at: <>. Date accessed: 29 june 2017. doi:
Received 2017-03-03
Accepted 2017-03-13
Published 2017-03-13


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