Journal ArticleDOI
Laminar forced convection heat transfer of a non-newtonian fluid in a square duct
TLDR
In this article, numerical solutions for laminar heat transfer of a non-Newtonian fluid in the thermal entrance region of a square duct are presented for three thermal boundary conditions.About:
This article is published in International Journal of Heat and Mass Transfer.The article was published on 1977-12-01. It has received 85 citations till now. The article focuses on the topics: Nusselt number & Churchill–Bernstein equation.read more
Citations
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Journal ArticleDOI
Simultaneously developing laminar convection in rotating isothermal square channels
TL;DR: In this article, a numerical analysis is conducted on laminar forced convection in the entrance region of an isothermal square duct rotating about an axis perpendicular to the duct axis, where three independent parameters are introduced: Prandtl number (Pr), a combined Reynolds and rotational Reynolds number (Re ReΩ), and Rossby number (Ro).
Book ChapterDOI
Heat and mass transfer in rheologically complex systems
TL;DR: In this paper, the authors discuss the properties of non-Newtonian materials in terms of heat and mass transport in processes involving rheologically complex materials, especially with regard to the implications of shear dependent viscosity and viscoelasticity.
Journal ArticleDOI
Numerical simulation of heat transfer in simultaneously developing flows in parallel rectangular ducts
Hussien Al-Bakhit,Ahmad Fakheri +1 more
TL;DR: In this paper, a parallel flow heat exchanger is numerically simulated to determine the impact of different parameters on the performance and the accuracy of constant heat transfer coefficient assumption, and it is shown that there is significant change in the overall heat transfer coefficients in the developing region and that the three-dimensional heat transfer in the heat exchange wall must be included in the analysis.
Journal ArticleDOI
Graetz problem with non-linear viscoelastic fluids in non-circular tubes
TL;DR: In this article, a numerical investigation of the Graetz problem in straight pipes of circular and non-circular cross-sections is carried out to analyze the influence of the rheological parameters on the heat transfer enhancement with negligible axial heat conduction and viscous dissipation for a class of non-linear viscoelastic fluids constitutively represented by the simplified Phan-Thien-Tanner (SPPT) model.
Journal ArticleDOI
A numerical study of laminar heat convection in ducts of irregular cross-sections
Ibrahim Uzun,Mazhar Ünsal +1 more
TL;DR: Forced convective heat transfer during hydrodynamically fully developed laminar fluid flow inside ducts of irregular cross section is analyzed utilizing numerical methods in this paper, where the elliptic grid generation technique is used to transform the partial differential equations of an arbitrary and irregular physical plane from the physical domain into a square shaped computational domain.
References
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Laminar Flow Forced Convection Heat Transfer and Flow Friction in Straight and Curved Ducts - A Summary of Analytical Solutions
Ramesh K. Shah,A. L. London +1 more
TL;DR: Theoretical laminar flow solutions for heat transfer and flow friction are of importance in the development of compact heat exchangers as discussed by the authors, generally the higher the degree of compactness, the lower is the Reynolds number and the greater is the relevance of the theory solutions.
Journal ArticleDOI
Heat transfer in fully developed laminar flow through rectangular and isosceles triangular ducts
F.W. Schmidt,M.E. Newell +1 more
Proceedings ArticleDOI
Laminar flow heat-transfer in ducts of rectangular cross-section
S. R. Montgomery,P. Wibulsvas +1 more
Journal ArticleDOI
Simultaneous development of velocity and temperature profiles for laminar flow of a non-Newtonian fluid in the entrance region of flat ducts
Joseph Yau,Chi Tien +1 more
TL;DR: In this paper, the authors used the momentum and energy integral method of von Karman and Pohlhausen to solve the entrance heat transfer problem for a non-Newtonian fluid in a flat duct.