Results 241 to 250 of about 1,757,665 (295)

Natural convection in a cross-fin heat sink

Applied Thermal Engineering, 2018
Abstract A novel cross-fin heat sink consisting of a series of long fins and a series of perpendicularly arranged short fins was proposed to enhance natural convective heat transfer. The design principle of the cross-fin heat sink was based on overcoming internal thermal fluid-flow defects in a conventional plate-fin heat sink.
Shangsheng Feng, Shanyouming Sun
exaly   +2 more sources

Comparison of thermal performance between plate-fin and pin-fin heat sinks in natural convection

International Journal of Heat and Mass Transfer, 2015
Abstract The thermal performance of optimized plate-fin and pin-fin heat sinks with a vertically oriented base plate is compared analytically in natural convection. A new correlation of the heat transfer coefficient is proposed and validated experimentally to optimize pin-fin heat sinks, while a correlation of the heat transfer coefficient for plate ...
Younghwan Joo, Sung Jin Kim
exaly   +3 more sources

Thermal optimization of plate-fin heat sinks with fins of variable thickness under natural convection

International Journal of Heat and Mass Transfer, 2012
Abstract In this study, thermal performance of a vertical plate-fin heat sink under natural convection was optimized for the case in which the fin thickness varied in the direction normal to the fluid flow. For this optimization, the averaging approach presented in an earlier paper for the case of the heat sinks under forced convection was extended ...
Dong-Kwon Kim
exaly   +2 more sources

Natural Convection From Finned Heat Sinks

ASME 2007 InterPACK Conference, Volume 2, 2007
A CFD (computational fluid dynamics) analysis is performed on the finned heat sinks. For convenience, a commercial CFD code, Flotherm, is utilized in the analysis. Though the code can handle the radiation heat transfer, the present analysis is limited to the natural convection with the base of the heat sink at a constant temperature. The continuous fin
L. T. Yeh, Joseph Yeh, B. T. F. Chung
openaire   +1 more source

Natural convection from rectangular interrupted fins

International Journal of Thermal Sciences, 2014
Abstract Steady-state external natural convection heat transfer from vertically-mounted rectangular interrupted fins is investigated numerically and experimentally. FLUENT software is used to develop a 2-D numerical model for investigation of fin interruption effects.
Mehran Ahmadi, Golnoosh Mostafavi, Majid Bahrami   +2 more
openaire   +1 more source

Natural convection from pin fin arrays

Experimental Thermal and Fluid Science, 1990
Abstract Pin fins are used to increase heat transfer from heated surfaces to air. Industrial experience has shown that for the same surface area, pin fins can transfer considerably more energy than straight fins. The analysis of a single pin fin is well known.
Antonios I. Zografos, J. Edward Sunderland   +1 more
openaire   +1 more source

Natural frequencies of finned heat exchanger tubes

Journal of Sound and Vibration, 1982
Abstract The heat transfer of heat exchanger tubes is often enhanced by rolling external fins on to the tubes. These fins contribute to both the mass and the stiffness of the tubes. Calculations of the bending natural frequencies of finned tubes with only the mass contribution considered lead to values which are up to 10% lower than experimental ...
U. Bolleter, R.D. Blevins
openaire   +1 more source

Natural convection and radiation in porous fins

International Journal of Numerical Methods for Heat & Fluid Flow, 2013
Purpose – The purpose of this paper is to conduct a numerical study of the convection heat transfer in porous media by the homotopy analysis method (HAM). The geometry considered is that of a rectangular profile fin. The porous fin allows the flow to infiltrate through it and solid-fluid interaction takes place.
M.T. Darvishi, R.S.R. Gorla, F. Khani
openaire   +1 more source

NATURAL CONVECTION FROM A VERTICAL RECTANGULAR FIN

Experimental Heat Transfer, 1996
An experimental investigation of steady-state natural convection from vertical rectangular mild steel and aluminum fins was conducted using laser holographic interferometry. Infinite-fringe interferograms demonstrate the effect of fin base heating. Depending on the fin material and base temperature, the local heat transfer coefficients vary along the ...
K. C. Leong, T. C Kooi1
openaire   +1 more source

Conjugate MHD Natural Convection From a Vertical Plate Fin

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 1997
The authors study free convection flow of a viscous incompressible and electrically conducting fluid along a vertical flat plate fin in presence of uniform transverse magnetic field. Using Keller box method, simultaneous solutions are obtained for heat conduction equation for the fin, and for boundary layer equations for the fluid.
Hossain, M. A., Pop, I.
openaire   +1 more source