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Proof of concept MFD optimization of the aftbody geometry of axisymmetric slender body based on wave drag considerations


Citation

Djojodihardjo, Harijono and Prijono, Eddy (2013) Proof of concept MFD optimization of the aftbody geometry of axisymmetric slender body based on wave drag considerations. Journal of Mechanics Engineering and Automation, 3 (8). pp. 473-490. ISSN 2159-5275; ESSN: 2159-5283

Abstract

A comprehensive, universally valid, elegant and yet simple method to design slender axisymmetric body of minimum wave drag in transonic and supersonic flows is developed. Computational aerodynamics is also used as a tool for numerical experiments in gaining physical understanding of the drag mechanism due to the geometry of the aftbody, such as the correlation between wave drag and wave distribution of the aftbody geometry. The method utilizes MFD (modified feasible direction) based optimization program, along with the linear slender body aerodynamics, for its elegance and generic optimization convenience. The efforts are focused on inviscid flow. A practical method of reducing the wave drag of a given body is developed for both bodies with pointed end and with base area, using shock wave generator at a particular location on the aftbody. The results show that the MFD optimization program can be effectively utilized in an aerodynamic optimization problem.


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Official URL or Download Paper: http://www.davidpublishing.com/show.html?13897

Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
Publisher: David Publishing Company
Keywords: Aerodynamics; Computational fluid dynamics; Optimization; Slender body; Transonic flow; Supersonic flow; Axisymmetric flow; Shock-generation
Depositing User: Nabilah Mustapa
Date Deposited: 13 Mar 2015 02:20
Last Modified: 06 Oct 2015 08:19
URI: http://psasir.upm.edu.my/id/eprint/28840
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