Wake shapes behind wings in close formation flight near the ground

Han, Cheolheui; Cho, Leesang; Cho, Jin Soo

doi:10.1007/bf02916189

Cited by 9 publications

(2 citation statements)

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“…Owing to these advantages of WIG vehicles, for several decades, various studies have been performed for two and three dimensional steady/unsteady numerical analysis of WIG by Nuhait and Mook (1989), Mizutani and Suzuki (1993), Chen (1995, 1996), Han, Cho and Cho (2005), Moon, Oh and Seo (2005); experimental studies by Fink and Lastinger (1996), Kim, Suh, Lee and Kim (1997), Zerihan and Zhang (2000), Ahmed and Goonaratne (2002), Zhang, Zerihan, Ruhrmann and Deviese (2002); the development of a WIG craft by Shin, et al (1997), Chun, Chang, Paik and Chang (1997); the stability analysis by Chun and Chang (2002).…”

Section: Introductionmentioning

confidence: 99%

Mean flow characteristics of two-dimensional wings in ground effect

Jung¹,

Yoon²,

Hu³

et al. 2012

International Journal of Naval Architecture and Ocean Engineeri

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Section: Introductionmentioning

confidence: 99%

Mean flow characteristics of two-dimensional wings in ground effect

Jung¹,

Yoon²,

Hu³

et al. 2012

International Journal of Naval Architecture and Ocean Engineeri

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“…Owing to these advantages of WIG vehicles, for several decades, various studies have been performed for 2D and 3D steady/unsteady numerical analysis of WIG by Nuhait and Mook (1989), Mizutani and Suzuki (1993), Hsiun and Chen (1995;, Han et al (2005), Moon et al (2005) experimental studies by Fink and Lastinger (1996), Kim et al (1997), Zerihan and Zhang (2000), Ahmed and Goonaratne (2002), Zhang et al (2002); the development of a WIG craft by Shin et al (1997), Chun et al (1997) the stability analysis by Chun and Chang (2002).…”

Section: Introductionmentioning

confidence: 99%

Endplate effect on aerodynamic characteristics of three-dimensional wings in close free surface proximity

Jung¹,

Kim²,

Yoon³

et al. 2012

International Journal of Naval Architecture and Ocean Engineeri

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We investigated the aerodynamic characteristics of a three-dimensional (3D) wing with an endplate in the vicinity of the free surface by solving incompressible Navier-Stokes equations with the turbulence closure model. The endplate causes a blockage effect on the flow, and an additional viscous effect especially near the endplate. These combined effects of the endplate significantly reduce the magnitudes of the velocities under the lower surface of the wing, thereby enhancing aerodynamic performance in terms of the force coefficients. The maximum lift-to-drag ratio of a wing with an endplate is increased 46% compared to that of wing without an endplate at the lowest clearance. The tip vortex of a wing-with-endplate (WWE) moved laterally to a greater extent than that of a wing-without-endplate (WOE).This causes a decrease in the induced drag, resulting in a reduction in the total drag.

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