tailieunhanh - Research on aerodynamics of a wing in surface effect ship by theory and experiment

The paper presents the results of theoretical and experimntal studies of the aerodynamic characteristics of a wing-in-surface-effect ship (WISES), which was made under coordination of the Institute of Mechanics, Vietnamese Academy of Science and Tech nology. | Vietnam Jou rnal of Mechanics, VAST, Vol. 29 , No. 4 (2007), pp. 51 7 - 528 RESEARCH ON AERODYNAMICS OF A WING-IN-SURFACE-EFFECT SHIP BY THEORY AND EXPERIMENT PHAN XUA N TANG , NGO TRI THA NG Technological Air Force an d Air Def ense Institute PHAM Vu UY Military Center of S cience an d Technology DUONG NGO C HA I Institute of M echanics, Vietnamese Academy of Science and Technology Abstract. The paper presents t he results of t heoretical and experim )ntal studies of t he aerody nam ic characteristics of a w ing-in-surface-effect ship (\ VISES), wh ich was made under coordination of the Institute of Mechanics, Vietnamese Academy of Science an d Tech nology. The theoretical researches are carried out by the ha lf analytical method a nd together by the linear and nonlinear vortex lattice methods. The experiment was conducted by the model on wind tunnel OTl of The Technical Institute of Air Force Air Defense. 1. INTRODUC T IO N One of t he most important problems in early m anufacturing process is to design hydroaerodynamic diagram , to determine aero characteristic, stability and control of craft . These aero characteristics are, on one hand , to determine t he perfect of the di agram and , on the other hand , to survey the stabili ty, control, load ing and structure's durability of craft . Methods were used to determine aero characteristics of airplane are numerous, such as theoret ical calculation , testing model in wind tunnel and testing fli ght . Generally, in modeling process of aero plane, theoretical calculation and testing model are inevitable. Based on hydro-aero dynamic diagram, we have done many theoreti cal calculations by numerous methods and have tested wing-in-surface-effect ship (WISES) in wind tunnel OTl . The res ults are shown in this article . 2 . THEORETICAL RESEARCH 2 .1. Half experiment method Half experiment method is one of t he simplest methods t o calculate ;,,ero-characteristic of airplane. References [5, 12] showed all necessary .