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- Title
Exact Solution for the Heat Transfer of Two Immiscible PTT Fluids Flowing in Concentric Layers through a Pipe.
- Authors
Siddiqui, Abdul Majeed; Zeb, Muhammad; Haroon, Tahira; Azim, Qurat-ul-Ain
- Abstract
This article investigates the heat transfer flow of two layers of Phan-Thien-Tanner (PTT) fluids though a cylindrical pipe. The flow is assumed to be steady, incompressible, and stable and the fluid layers do not mix with each other. The fluid flow and heat transfer equations are modeled using the linear PTT fluid model. Exact solutions for the velocity, flow rates, temperature profiles, and stress distributions are obtained. It has also been shown that one can recover the Newtonian fluid results from the obtained results by putting the non-Newtonian parameters to zero. These results match with the corresponding results for Newtonian fluids already present in the literature. Graphical analysis of the behavior of the fluid velocities, temperatures, and stresses is also presented at the end. It is also shown that maximum velocity occurs in the inner fluid layer.
- Subjects
HEAT transfer; FLUID dynamics; NEWTONIAN fluids; HEATING-pipes; FLUID velocity measurements; GRAPHIC methods
- Publication
Mathematics (2227-7390), 2019, Vol 7, Issue 1, p81
- ISSN
2227-7390
- Publication type
Article
- DOI
10.3390/math7010081