Unsteady mixed convection stagnation-point flow over a plate moving along the direction of flow impingement

• Main Authors: Saleh, Siti Hidayah Muhad, Arifin, Norihan Md., Nazar, Roslinda, Pop, Ioan
• Format: Article
• Language: English
• Published: Emerald Group Publishing 2017
• Online Access: http://psasir.upm.edu.my/id/eprint/63637/1/Unsteady%20mixed%20convection%20stagnation-point%20flow%20over%20a%20plate%20moving%20along%20the%20direction%20of%20flow%20impingement.pdf; http://psasir.upm.edu.my/id/eprint/63637/

Purpose: The purpose of this paper is to present the results of an analysis performed to study unsteady mixed convection at the stagnation point flow over a plate moving along the direction of flow impingement. The similarity transformations are used to transform the governing nonlinear partial differential equation to a system of an ordinary differential equation. Design/methodology/approach: The transformed equations are then solved numerically by a shooting technique together with bvp4c function. Findings: The numerical results are compared with the corresponding results from previous researchers. The effects of the unsteadiness Parameter A, Prandtl number Pr, mixed convection parameter λ for plane (m = 0) and axisymmetric (m = 1) flow on the shear stress or the skin friction and heat transfer coefficients, as well as the velocity and temperature profiles, are presented and discussed. Originality/value: Dual solutions for the opposing flow and multiple solutions for the assisting flow are found.