Two-phase Dusty Fluid Flow Along a Rotating Axi-symmetric Round-Nosed Body

[+] Author and Article Information
Sadia Siddiqa

Department of Mathematics, COMSATS Institute of Information Technology, Kamra Road, Attock, PakistanDipartimento di Ingegneria, Universit`a degli Studi di Napoli “Parthenope”, Centro Direzionale, Isola C4, Napoli, Italy

Naheed Begum

Institute of Applied Mathematics (LSIII), TU Dortmund, Vogelpothsweg 87, D-44221 Dortmund, Germany

Md Anwar Hossain

Department of Mathematics, University of Dhaka, Dhaka, Bangladesh

R. S. R. Gorla

Department of Mechanical & Civil Engineering, Purdue University Northwest, Westville, IN 46391

1Corresponding author.

ASME doi:10.1115/1.4036279 History: Received April 06, 2016; Revised February 21, 2017


This article is concerned with the class of solutions of gas boundary layer containing uniform, spherical solid particles over the surface of rotating axi-symmetric roundnosed body. By using the method of transformed coordinates, the boundary-layer equations for two-phase flow are mapped into a regular and stationary computational domain and then solved numerically by using implicit finite difference method. In this study, a rotating hemisphere is used as a particular example to elucidate the heat transfer mechanism near the surfaces of round nosed bodies. We will also investigate whether the presence of dust particles in carrier fluid disturbs the flow characteristics associated with rotating hemisphere or not. A comprehensive parametric analysis is presented to show the influence of the particle loading, the buoyancy ratio parameter and the surface of rotating hemisphere on the numerical findings. In the absence of dust particles, the results are graphically compared with existing data in the open literature and an excellent agreement has been found. It is noted that, the concentration of dust particles parameter, D, strongly influence the heat transport rate near the leading edge.

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