Numerical Calculations for a Boundary Layer Flow past a Moving Vertical Porous Plate with Suction/Injection and Thermal Radiation

• 作者: Nahom Alemseged Worku Okey Oseloka Onyejekwe Yohannes Demiss Belete
• 来源期刊: 应用数学(英文)
• 学科: 物理学
• 关键词: MOMENTUM and Energy Grashof NUMBER Prandtl NUMBER Similarity Transformation RADIATION Parameter SUCTION BLOWING RADIATION Po-rous Plate
• 年，卷（期）: 2020,（3）
• 页码范围: 172-183
• 页数: 12页
• 分类号: O35

摘要

The work presented herein investigates the velocity, heat transfer, Nusselt number and skin friction profiles involved in boundary layer flow past a moving vertical porous plate. Similarity transformations are employed to convert the governing nonlinear unsteady momentum and energy equations from their partial differential equation forms to boundary value ordinary differential equations. The resulting equations are then solved numerically by the Runge-Kutta fourth order method with the help of a shooting technique. Several features of the flow and heat transfer characteristics for different values of problem parameters are analyzed and discussed. These include the effects of the radiation parameter (R), suction and injection parameter (c), Grashof (Gr) and Prandtl (Pr) numbers on the flow and heat profiles. Numerical results show the impact of blowing and sucking as well as radation on boundary layer flows of this type. Both the skin frictions as well as the heat transfer rate are also significantly related to the radiation parameter. For all these cases;the numerical results are found to be in agreement with the physics of the problem.