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Aeronumeric optimal design of a wing-in-ground-effect craft

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Abstract

An optimization technique was used to generate a wing-in-ground-effect (WIG) configuration which can achieve the maximum lift and satisfy the height stability criteria within the design constraints. For the analysis of the aerodynamic coefficients, the vortex lattice method (VLM) was applied with the inviscid and potential flow approximations. The sequential quadratic programming (SQP) method, which is a nonlinear optimization method, was employed as an optimization tool. The lift and moment coefficients, including the stability analysis computed by VLM, were compared with the experimental results of a medium-sized WIG, and a good correlation was found between them. In addition, the optimization tool was validated by finding the optimal position of the side wing attached on the WIG craft. Then, various optimum examples are shown, with generation of the wing section, the determination of the planform configuration, the aspect ratio, and the position of the tail wing within the design constraints. It was shown that the present optimization tool can be used effectively for the optimal design of a WIG craft.

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Acknowledgments

This work was supported by the Advanced Shipbuilding Engineering Research Center (ASERC) and by a grant from the Korea Science and Engineering Foundation (KOSEF).

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Authors and Affiliations

  1. Department of Naval Architecture and Ocean Engineering, Pusan National University, Busan, South Korea

    Hee Jung Kim & Ho Hwan Chun

  2. Department of Naval Architecture and Ocean Engineering, Dong-Eui University, Busan, South Korea

    Kwang Hyo Jung

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  1. Hee Jung Kim
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  2. Ho Hwan Chun
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  3. Kwang Hyo Jung
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Correspondence to Ho Hwan Chun.

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Kim, H.J., Chun, H.H. & Jung, K.H. Aeronumeric optimal design of a wing-in-ground-effect craft. J Mar Sci Technol 14, 39–50 (2009). https://doi.org/10.1007/s00773-008-0020-7

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  • DOI: https://doi.org/10.1007/s00773-008-0020-7

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