Radiation from an Array of Longitudinal Fins of Triangular Profile

Abstract

TECHNICAL NOTES 691 be one of the nodal parameters and then can be easily satisfied in the usual manner. Numerical Examples and DiscussionUsing the present Galerkin finite element method, the critical loads for three cases of stability of uniform cantilever column subjected to tangential loads, namely: 1) a sub tangential concentrated load P at the free end; 2) a uniformly distributed tangential load of intensity q 0 per unit length; and 3) a triangularly varying distributed tangential load of intensity q, where q = q 0 (\ -x) are obtained. Table 1 gives the critical load parameter A cr for case (1), for various values of y. For the sake of comparison, the results of Ref. 4 and Beck's 6 values for y = 1 are included in this Table. The results indicate that the present results are very accurate even with a two element idealization of the column.

Analytical Investigations of Thermo-Geometrical Parameters Effects on Heat Transfer and Performance of Longitudinal Radiating Fin

“…The enormous applications of this type of fin have aroused interest of various workers as there have been extensive works on the heat transfer characteristics, which attempt to improve the design and provide the optimized mass of the fins. In the attempts of studying the functions, investigating the heat transfer characteristics and optimizing the performance of the fin, Cockfield [1] discussed the role of radiators as a structural element in spacecraft applications while Wilkins Jr. [2] developed expressions for heat analysis of triangular fins to space at absolute zero temperature Few years later, Schnurr [3] optimized the design of longitudinal and triangular radiating fins with respect to weight. Meanwhile, workers such as Gopinath and Ashok [4] studied the problem of a uniform area radiating fin for large values of the radiation-conduction interaction parameter and developed for improving the previously known asymptotic solution to make it applicable for relatively smaller values of radiation conduction interaction parameter.…”

An Experimental Investigation on the Heat Transfer Coefficient of Oscillating Heat Pipes

“…Gorchakov and Panevin [11] & [12] obtained a numerical solution of the system of equations describing the thermal state of the fin. Schnurr, N. M [13] optimized the design of longitudinal and triangular radiating fins with respect to weight. Dhar, P. L.; Arora, C. P. [14] developed a method of carrying out the minimum weight design of finned surfaces of various types.…”