Dynamics and stability of racing boats with air wings

Kornev, Nikolaĭ; Kleinsorge, Lutz; Migeotte, Gunther

doi:10.1504/ijad.2010.031700

Cited by 7 publications

(1 citation statement)

References 3 publications

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“…It should be noted that the contribution of C= L on C L of a WIG effect is dependent on the airfoil profile, AR of the wing and h/c. Figure 8 presents comparisons of the lift coefficient of the wing with AR ϭ 1 between the experimental results, the present work results and the numerical results that were carried out by CFD (Park and Lee, 2008) and VLM (Kornev and Lutz, 2011) in h/c ϭ 0.167.…”

Section: Resultsmentioning

confidence: 92%

A practical method for aerodynamic investigation of WIG

Seif

Dakhrabadi

2016

Aircraft Eng & Aerospace Tech

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Purpose – The purpose of this paper is to present a fast, economical and practical method for mathematical modeling of aerodynamic characteristics of rectangular wing in ground (WIG) effect. Design/methodology/approach – Reynolds averaged Navier–Stokes (RANS) equations were converted to Bernoulli equation by reasonable assumptions. Also, Helmbold’s equation has been developed for calculation of the slope of wing lift coefficient in ground effect by defining equivalent aspect ratio (ARe). Comparison of present work results against the experimental results has shown good agreement. Findings – A practical mathematical modeling with lower computational time and higher accuracy was presented for calculating aerodynamic characteristics of rectangular WIG effect. The relative error between the present work results and the experimental results was less than 8 per cent. Also, the accuracy of the proposed method was checked by comparing with the numerical methods. The comparison showed fairly good accuracy. Research limitations/implications – Aerodynamic surfaces in ground effect were used for reducing wetted surface and increasing speed in high-speed marine and novel aeronautical vehicles. Practical implications – The proposed method is useful for investigation of aerodynamic performance of WIG vehicles and racing boats with aerodynamic surfaces in ground effect. Originality/value – The proposed method has reduced the computational time significantly as compared to numerical simulation that allows conceptual design of the WIG crafts and is also economical.

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Section: Resultsmentioning

confidence: 92%