the basic possibilities for improvement and modernization of wind tunnels which do not represent the state-of-art are discussed by using the modernization of the 3m-Low-Speed WInd Tunnel of the Technical University of Darmstadt, Germany, as an example. In this context. the design-rules of the...
The formulation is efficient because the fluid modeling includes only one nodal point unknown, the velocity potential. A practical example from the nuclear industry, the HDR blowdown experiment, shows the efficiency and accuracy of the formulation. 展开 ...
III. SOLVING THE SINGULAR BOUNDARY INTEGRAL EQUATION A collocation method is used for example in =-=[4]-=- for solving integral equation (7). In the boundary element approach used herein, for solving the integral equation (7) we use linear isoparametric boundary elements of Lagrangean type. ...
A constriction in a fluid flow system, such as an airplane's wing or a wind tunnel, causes a decrease in the cross-sectional area through which the fluid can flow. This results in an increase in the velocity of the fluid, as described by the continuity equation. What is the difference ...
A wind tunnel data base was established for the effects of chine-like forebody strakes and Mach number on the longitudinal and lateral-directional characte... GE Erickson,LW Rogers 被引量: 1发表: 1992年 Measurements of pressures on the tail and aft fuselage of an airplane model during rotar...
Flutter characteristics of cantilever rectangular flexible plate structure under incompressible flow regime are investigated by comparing the results of commercial flutter analysis program ZAERO© with wind tunnel tests conducted in Ankara Wind Tunnel (ART). A rectangular polycarbonate (PC) plate, 5 × ...
Capone, F.J.: Wind Tunnel/Flight Data Correlation for the Boeing 737-100 Transport Airplane. NASA TM X-72715. Hampton, Virginia; August (1975) McParlin, S.C., Bruce, R.J., Hepworth, A.G., Rae, A.J.: Low speed wind tunnel tests on the 1303 UCAV concept, AIAA 2006–2985. 24th...
In the current study, a novel method is proposed and evaluated for PIV measurement inside a closed cycle of organic vapor in a closed wind tunnel for both subsonic and supersonic regimes. This method can be used to prepare the experimental results of simple flow to validate the dense gas ...
The MIT ISES airfoil analysis code has been used to theoretically predict performance including drag rise characteristics. In addition, as a calibration, the ISES code was applied to airfoils where wind tunnel results were available, and agreement with the data was very good....
Wind tunnel testsWhen the flow along a highly curved wall decelerates, thick boundary layers arise which have a large normal gradient of the static pressure. This pressure gradient affects the way in which the boundary layer measurements are interpreted, i.e., the determination of the displacement...