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Daria Gladskikh, Lev Ostrovsky, Yuliya Troitskaya, Irina Soustova and Evgeny Mortikov
Within the framework of the theory of unsteady turbulent flows in a stratified fluid, a new parameterization of the turbulent Prandtl number is proposed. The parameterization is included in the k-e-closure and used within the three-dimensional model of t...
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Mohamed H. Ahmed
Heat transfer through tube walls can be promoted using a ribbed tube configuration. Most of the ribs used in previous reports have equal height along the tube length. In this numerical study, we investigate the heat transfer and pressure drop in a transv...
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Lei Xi, Jianmin Gao, Liang Xu, Zhen Zhao, Qicheng Ruan and Yunlong Li
In this study, numerical simulations were carried out to investigate the flow and heat transfer characteristics of jet array impingement cooling in the quasi-leading-edge channel of gas turbine blades. The influence laws of Reynolds number (Re, 10,000 to...
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Xiao Cui and Boqi Jia
The linear instability of an annular liquid jet with a radial temperature gradient in an inviscid gas steam is investigated theoretically. A physical model of an annular liquid jet with a radial temperature gradient is established, dimensionless governin...
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Suresha Suraiah Palaiah, Hussain Basha, Gudala Janardhana Reddy and Mikhail A. Sheremet
The present research paper deals with the study of heat and mass transfer characteristics of steady viscous incompressible two-dimensional Maxwell fluid flow past a stretching sheet under the influence of magnetic field and the Soret effect. A well-known...
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Shahid Khan, Mahmoud M. Selim, Aziz Khan, Asad Ullah, Thabet Abdeljawad, Ikramullah, Muhammad Ayaz and Wali Khan Mashwani
The 3D Carreau fluid flow through a porous and stretching (shrinking) sheet is examined analytically by taking into account the effects of mass transfer, thermal radiation, and Hall current. The model equations, which consist of coupled partial different...
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Folake Oyedigba Akinpelu, Olalekan Ayodeji Olaleye, Raimi Marcus Alabison
Pág. 130 - 137
A comparison of the effects of solar radiation on sandy-loam and clay-loam soils with convective boundary condition was made. The dimensional governing equations (the continuity, momentum and energy equations) were converted to non-dimensional form using...
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Àlex Navó and Josep M. Bergada
A 2D aerodynamic study of the NASA?s X-43A hypersonic aircraft is developed using two different approaches. The first one is analytical and based on the resolution of the oblique shock wave and Prandtl?Meyer expansion wave theories supported by an in-hou...
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Constantinos F. Panagiotou, Fotos S. Stylianou, Elias Gravanis, Evangelos Akylas and Constantine Michailides
In this paper, we propose an algebraic model for turbulent scalar-flux vector that stems from tensor representation theory. The resulting closure contains direct dependence on mean velocity gradients and quadratic products of the Reynolds stress tensor. ...
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Sergey Moshonkin, Vladimir Zalesny and Anatoly Gusev
The results of large-scale ocean dynamics simulation taking into account the parameterization of vertical turbulent exchange are considered. Numerical experiments were carried out using ??-??
k
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turbulence model embedded to the Institute of Numerical...
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