aspect ratio n 1.(Electronics) the ratio of width to height of the picture on a television or cinema screen 2.(Aeronautics)aeronauticsthe ratio of the span of a wing to its mean chord Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991,...
elliptical planform that, for same lift coefficient, has same induced-drag coefficient as airfoil, or combination of airfoils in question. Aspect ratio is the ratio of the span of the wing to its chord and also can be expressed as the ratio of the square of the span of the wing to its...
associated with the tapered free end. Here the reader is referred to the discussion following equation (2.25) and the analogy with a low-aspect-ratio wing. The destabilizing force is associated with the shear boundary condition (2.24a) which, after elimination of the time-dependent terms, ...
An analytical technique to compute the performance of an arbitrary jet-flapped wing is developed. The solution technique is based on the method of Maskell and Spence in which the well-known lifting-line approach is coupled with an auxiliary equation providing the extra function needed in jet-flap...
The same effect is noted for the hinge-moment characteristic b1 (equation 13). The effects on the hinge-moment characteristics b2 and b3 are rather more complicated (equations 14 and 15), but in many practical cases the influence of aspect ratio will be very small.A. D. Young...
This study presents an experimental and numerical investigation to characterize the plume pattern of a high-aspect-ratio rectangular convergent/divergent nozzle with an aft deck in under-expanded conditions. The function of an aft deck is to shield the infrared signal of an exhaust plume at its st...
For large aspect ratios, the lift-curve-slope equation is improved so that it can more accurately calculate the corresponding two-dimensional lift-curve slope from the wind tunnel test data of a finite-aspect-ratio wing.关键词:MODEMS CODING DIGITAL TRANSMISSION DISTORTION DOI: 10.2514/3.45841 ...
Aeroelastic deformation of the high-aspect-ratio wing from a solar-powered UAV will definitely lead to the difference of its performance between design and actual flight. In the present study, the numerical fluid–structural coupling analysis of a wing with skin flexibility is performed by a loosel...
The prototype of the otter board in this study is a 2.3 m2symmetrical elliptic otter board operated on 441 kW fishing boats in the South China Sea with a towing speed of 2~3 kn. The wingspan of the otter board isl= 1.2 m, the chordc= 2.4 m and the aspect ratio AR = 0.64. Froud...
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