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http://dx.doi.org/10.5139/JKSAS.2004.32.8.037

Computational Aerodynamic Analysis of Airfoils for WIG(Wing-In-Ground-Effect) -Craft  

Joh, Chang-Yeol (울산대학교 수송시스템공학부)
Kim, Yang-Joon (울산대학교 수송시스템공학부 대학원)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.32, no.8, 2004 , pp. 37-46 More about this Journal
Abstract
Several notes on ground effects drawn from Navier-Stokes analyses and their aerodynamic interpretations were addressed here; For two-dimensional ground effect, the change of surface pressure due to image vortex, the venturi effect due to thickness and the primary inviscid flow phenomena of ground effect, and for three-dimensional ground effect, strengthened wing tip vortices, increased effective span and the outward drift of trailing vortices. Irodov's criteria were evaluated to investigate the static longitudinal stability of conventional NACA 6409 and DHMTU 8-30 airfoils. The analysis results demonstrated superior static longitudinal stability of DHMTU 8-30 airfoil. The DHMTU airfoil has quite lower value of lrodov's criterion than the conventional NACA airfoil, which require much smaller tail volume to stabilize the whole WIG-craft at its design stage.
Keywords
WIG(Wing In Ground Effect); Image method; DHMTU; Irodov's Criterion;
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  • Reference
1 Jacob, K., "Advanced Method for Computing Flow Around Wings with Rear Separation and Ground Effect", Journal of Aircraft, Vol. 24, No. 2, pp. 126-128, 1987.   DOI   ScienceOn
2 The Royal Institution of Naval Architects, "International Conference on Wing-In-Ground-Effect Craft", London, 4 & 5 Dec., 1997.
3 신명수, 라승호 외, "중형해면효과여객선 핵심기술개발-선형설계 및 추진성능기술", 한국기계연구원 선박해양공학연구센터, 1998.
4 라승호, 정진덕 외, "WIG 공력특성에 대한 풍동실험", 한국항공우주학회지, 제28권, 제2호, pp. 1-9, 2000.
5 김기은, 이동환, "해면효과익선개발에 관한 기초연구", 제3회 항공기 개발기술 심포지엄, 국방과학연구소, pp. 123-132, 1995.
6 한철희, 조진수, "지면근처를 비행하는 날개의 WIG효과에 대한 정상상태 공력해석", 한국항공우주학회지, 제28권, 제3호, pp. 46-52, 2000.
7 Irodov, R. D., "Criteria of Longitudinal Stability of Ekranoplan", Ucheniye Zapiski TSAGI, Vol. 1, No. 4, pp. 63-74, 1970.
8 Staufenbiel, R. S., "Stabili ty of Airplanes in Ground Effect", Journal of Aircraft, Vol. 25, No. 4, April 1988.
9 박근홍, 조창열, "지면효과익선의 설계를 위한 와류격자법의 유용성 연구", 대한조선학회 추계학술대회 논문집, pp. 257-260, 1999.
10 Ranzenbach, R. and Barlow, J. B., "Two-Dimensional Airfoil in Ground Effect, An Experimental and Computational Study", Vol. 1, issue 287, pp. 241-250, G.L.M Wind Tunnel, Dec. 1994.
11 Hayashi M. and Endo E., "Measurement of Flow Fields Around an Airfoil Section with Separation" Trans. Japan Soc. Aero. Space Sci., Vol. 21, No. 52, pp. 69-75, 1978.
12 임예훈, 장근식, "지면효과를 받는 3차원 날개의 유동 해석", 한국항공우주학회지, 제29권, 제5호, pp. 1-8, 2001.
13 조정현, 김윤제, "지면효과를 받는 2차원 에어포일 주위 유동에 대한 연구", 한국항공우주학회지, 제29권, 제5호, pp. 17-24, 2001.
14 Hsiun, Chih-Min and Chen, Cha'o-Kuang, "Aerodynamic Characteristics of a Two-Dimensional Airfoil with Ground Effect", Journal of Aircraft, Vol. 33, No. 2, pp. 386-392, March-April 1996.   DOI
15 FLUENT Inc., "FLUENT 5 User's Guide", 1998.
16 Wieselsberger, C., "Wing Resistance Near the Ground", NACA TM77, April 1922.
17 박근홍, 조창열, "Navier Stoked 방정식을 이용한 2차원 지면효과의 해석", 한국항공우주학회 춘계학술발표회 논문집, pp. 247-250, 2000.