کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
816002 1469253 2016 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of thermophoresis and variable properties on mixed convection along a vertical wavy surface in a fluid saturated porous medium
ترجمه فارسی عنوان
اثرات ترموفورز و خواص متغیر در کنجکاوی مخلوط در امتداد یک سطح باربری عمودی در یک محیط متخلخل سیال اشباع شده
کلمات کلیدی
خواص متغیر، ترموفورز، مخلوط مخلوط، سطح باربری عمودی، دارسی متخلخل محیطی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی

This paper investigates the influence of thermophoresis on mixed convection heat and mass transfer flow over a vertical wavy surface in a porous medium with variable properties, namely variable viscosity and variable thermal conductivity. The effect of wavy surface is incorporated into non-dimensional equations by using suitable transformations and then transformed into non-linear ordinary differential equations by employing the similarity transformations and then solved numerically. The transport process of flow, heat and mass transfer in the boundary layer for aiding and opposing flow cases is discussed. The structure of flow, temperature and concentration fields in the Darcy porous media are more pronounced by complex interactions among variable viscosity, variable thermal conductivity, mixed convective parameter, thermophoresis and amplitude of the wavy surface. Increasing thermophoresis parameter enhances velocity profile, concentration distribution and Sherwood number while reduces Nusselt number. As increase in variable viscosity, temperature and concentration distributions are enhanced while velocity profile, Nusselt number and Sherwood numbers are reduced. This study finds applications in aerosol Technology, space technology and processes involving high temperatures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Alexandria Engineering Journal - Volume 55, Issue 2, June 2016, Pages 1243–1253
نویسندگان
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