کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6593289 1423371 2017 33 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mixed convection characteristics in lid-driven cavity containing heated triangular block
ترجمه فارسی عنوان
خصوصیات ترکیبی مختلط در حفره رانده شده حاوی بلوک مثلثی گرم
کلمات کلیدی
مخلوط مخلوط، حفره رانده شده با هوا، تعداد رینولدز، مطالعه عددی، شماره گراشوف،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
This research work numerically analyzes 2D, steady state, mixed convective heat transfer for Newtonian fluids in lid driven square enclosure with centered triangular block (blockage - 10% or 30%) maintained either at the constant wall temperature or constant heat flux thermal conditions. The fluid flow in the enclosure is initiated by top moving wall in + x-direction, while all other walls are stationary. The top and bottom walls are thermally insulated. In particular, the governing field equations are solved for range of governing parameters such as, Reynolds number (1-1000), Prandtl number (1-100), and Grashof number (0-105). It is observed that the increase in inertial force enhances the heat transfer rate up to certain Reynolds number range (80-200), later deterioration of heat transfer rate is observed. Such behavior is found to be true for lower blockage (10%). Finally, functional dependence of average Nusselt number values with flow governing dimensionless parameters is developed and presented for its possible utilization in engineering and design purpose.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Journal of Chemical Engineering - Volume 25, Issue 10, October 2017, Pages 1381-1394
نویسندگان
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