Evaluation of windshield defogging process in an automobile Online publication date: Fri, 02-Sep-2016
by Mustafa Mutlu; Gökhan Sevilgen; Muhsin Kiliç
International Journal of Vehicle Design (IJVD), Vol. 71, No. 1/2/3/4, 2016
Abstract: The defogging process on a windshield is one of the important concerns in the automotive industry for driver safety and certification. Therefore, the simulation of the windshield defogging process provides a very effective and useful tool for the designers to obtain a more efficient and rapid defogging process. In this paper, an experimental and numerical study is presented for the windshield defogging process of an automobile. A computational fluid dynamics (CFDs) tool was used to perform the relevant three dimensional (3-D) transient simulations. Both droplet and wall film models are employed for comparison of the demisted area on a windshield in the numerical calculations. The 3-D fluid flow, temperature distribution and heat transfer characteristics of the interior surfaces of the automobile cabin are also considered. It is shown that the results of the simulations are in a good agreement with the experimental data presented in this study.
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