کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
614862 1454835 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermal analysis of microtextured journal bearing using non-Newtonian rheology of lubricant and JFO boundary conditions
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Thermal analysis of microtextured journal bearing using non-Newtonian rheology of lubricant and JFO boundary conditions
چکیده انگلیسی


• Performance of the micro-textured journal bearings has been investigated.
• JFO boundary conditions yield realistic results in case of textured bearings.
• High value of the flow behavior index yields maximum percentage increments in load.
• Reduction in average temperature is higher for shear thinning fluids.

This paper presents investigations related to the combined influences of viscous heat dissipation and non-Newtonian rheology of lubricant on the performance parameters of micro-textured journal bearing. The model proposed herein is solved using finite difference technique by incorporating mass conservation algorithm (JFO boundary conditions) and oil mixing temperature concepts. Some results have been also presented with Reynolds boundary conditions (RBC) for comparison point of view. Based on the present numerical investigations, it is found that JFO boundary conditions yield realistic results in comparison to RBC. Moreover, JFO boundary condition provides numerical stability in getting the converged results with micro-textured surfaces of journal bearing. Reductions in average temperature of the lubricant have been noticed in presence of surface texturing in comparison to smooth surface of the bearing.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tribology International - Volume 69, January 2014, Pages 19–29
نویسندگان
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