Author: Erik LarsonPublisher:
ISBN:
Category :
Languages : en
Pages : 122
Book Description
Wing-body Interference at Moderate Supersonic Speeds. A Comparison Between Panel Method and Experiment
Author: Erik LarsonScientific and Technical Aerospace Reports
Author: Comparison Between Theory and Exeriment for Interference Pressure Field Between Wing and Body at Supersonic Speeds
Author: William C. PittsEuler Solutions of Supersonic Wing-body Interference at High Incidence Including Vortex Effects
Author: Jack Norman NielsenPublisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 108
Book Description
The purpose of this investigation was to demonstrate how the flow field about a supersonic wing-body combination can be calculated using the Euler equations when body vortices are present as well as separation vortices from the sharp leading edges of the wing panels. In order to start the calculations in the supersonic marching mode, it was necessary to develop solutions for cones with separated flow. Data on the separation line locations for circular cones were correlated to provide boundary conditions for this purpose. A series of calculations for a wing-body combination with delta wings at Mach numbers of 3, 4, and 5 and angles of attack up to 25 deg was made to demonstrate the feasibility of the use of the Euler equations to handle separated rotational flows. Some comparisons with experimental pressure distributions and fin load were made with good agreement. The Euler code was used to evaluate the accuracy of a panel method for calculating the wing-body pressure distributions as influenced by body vortices. (Author).
NASA SP.
Author: NASA Tech Briefs
Author: Aeronautical Engineering
Author: Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 934
Book Description
A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).
A Supersonic Area Rule and an Application to the Design of a Wing-body Combination with High Lift-drag Ratios
Author: Richard T. WhitcombPublisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 20
Book Description
Summary: As an extension of the transonic area rule, a concept for interrelating the wave drags of wing-body combinations at moderate supersonic speeds with axial developments of cross-sectional area has been derived. The wave drag of a combination at a given supersonic speed is related to a number of developments of cross-sectional areas as intersected by Mach planes. On the basis of this concept and other design procedures, a structurally feasible, swept-wing--indented-body combination has been designed to have relatively high maximum lift-drag ratios over a range of transonic and moderate supersonic Mach numbers. The wing of the combination has been designed to have reduced drag associated with lift and, when used with an indented body, to have low zero-lift wave drag. Experimental results have been obtained for this configuration at Mach numbers from 0.80 to 2.01. Maximum lift-drag ratios of approximately 14 and 9 were measured at Mach numbers of 1.15 and 1.41, respectively.
R & D Abstracts
Author: Technology Reports Centre (Great Britain)Publisher:
ISBN:
Category :
Languages : en
Pages : 540
Book Description
Experimental and Theoretical Supersonic Lateral-directional Stability Characteristics of a Simplified Wing-body Configuration with a Series of Vertical-tail Arrangements
Author: Milton LambPublisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 50
Book Description