Open Access

ARTICLE

An Optimal Fin Design Problem in Estimating the Shapes of Longitudinal and Spine Fully Wet Fins

by Cheng-Hung Huang¹, Yun-Lung Chung¹

1 Department of Systems and Naval Mechatronic Engineering, National Cheng Kung University, Tainan, Taiwan 701, R.O.C. Email: chhuang@mail.ncku.edu.tw

Computer Modeling in Engineering & Sciences 2009, 44(3), 249-280. https://doi.org/10.3970/cmes.2009.044.249

Abstract

The optimum shapes for the longitudinal and spine fully wet fins are estimated in the present inverse design problem by using the conjugate gradient method (CGM) based on the desired fin efficiency and fin volume. One of the advantages in using CGM in the inverse design problem lies in that it can handle problems having a large number of unknown parameters easily and converges very fast. Results obtained by using the CGM to solve the inverse design problems are justified based on the numerical experiments. Results show that when the Biot number and relative humidity are varied, the optimum fin efficiency and optimum fin shape will also be changed.

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