کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9691103 | 1457686 | 2005 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An experimental investigation of fluid flow and wall temperature distributions in an automotive headlight
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: An experimental investigation of fluid flow and wall temperature distributions in an automotive headlight An experimental investigation of fluid flow and wall temperature distributions in an automotive headlight](/preview/png/9691103.png)
چکیده انگلیسی
Detailed measurements of wall temperatures and fluid flow velocities inside an automotive headlight with venting apertures are presented. Thermocouples have been used to characterize the temperature distributions in the walls of the reflectors under transient and steady operating conditions. Quantification of the markedly three-dimensional flow field inside the headlight cavities was achieved through the use of laser-Doppler velocimetry for the latter condition only. Significant thermal stratification occurs in the headlight cavities. The regime corresponding to steady operating conditions is characterized by the development of a vortex-dominated flow. The interaction of the main vortex flow with the stream of colder fluid entering the enclosed volume through the venting aperture contributes significantly to increase the complexity of the basic flow pattern. Globally, the results have improved the understanding of the temperature loads and fluid flow phenomena inside a modern automotive headlight.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Fluid Flow - Volume 26, Issue 5, October 2005, Pages 709-721
Journal: International Journal of Heat and Fluid Flow - Volume 26, Issue 5, October 2005, Pages 709-721
نویسندگان
J.M.M. Sousa, J. Vogado, M. Costa, H. Bensler, C. Freek, D. Heath,