کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7173612 1464947 2018 49 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mixed convection in a two-sided lid-driven cavity containing heated triangular block for non-Newtonian power-law fluids
ترجمه فارسی عنوان
مخلوط مختلط در یک حفره ی دو طرفه حاوی درب حاوی بلوک مثلث گرم برای مایعات قدرت قانون غیر نیوتنی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی
In this work, we have presented the numerical results for 2D, steady, laminar and incompressible flow in a square, two-sided, lid-driven cavity with a decentered heated triangular block (maintained at the isothermal thermal condition, TH) for non- Newtonian power-law fluids. The range of flow governing parameters considered for the numerical experimentations are Reynolds number (100 ≤ Re ≤ 1000), Richardson Number (Ri = 0.01, 1, 10) power law index; (0.2 ≤ n ≤ 1.8), blockage (10% and 30% of the height of cavity) and Prandtl number of Pr = 1. The upper and lower walls of the square cavity are kept moving in the opposite directions along -x axis (u−ux) and are thermally insulated. The left and right stationary walls are exposed to ambient condition (Tc). The governing flow equations are solved by using the finite volume approach and SIMPLE algorithm. Heat transfer characteristics and flow kinematics are revealed by systematic variation of streamlines and temperature contours. The effect of mixed convection parameter, i.e., Ri, found to have a negligible impact on fluid and thermal structure inside the cavity for fluids with n = 0.2.Heat transfer rate found to be lower for Ri = 0.01 for both blockages.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Mechanical Sciences - Volume 144, August 2018, Pages 235-248
نویسندگان
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