Results 301 to 310 of about 48,923 (362)
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2018
Solid surfaces in like actuators, fluid mechanical models and surrounding walls can influence the fluid flow and/or can be deformed or displaced by it. The knowledge of the actual surface shape and location is therefore important for many fluid mechanical investigations.
Markus Raffel +5 more
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Solid surfaces in like actuators, fluid mechanical models and surrounding walls can influence the fluid flow and/or can be deformed or displaced by it. The knowledge of the actual surface shape and location is therefore important for many fluid mechanical investigations.
Markus Raffel +5 more
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Steady and unsteady transonic flow
16th Aerospace Sciences Meeting, 1978An investigation of the transonic flow over a circular arc airfoil was conducted to obtain basic information for turbulence modeling of shock-induced separated flows and to verify numerical computer codes which are being developed to simulate such flows. The investigation included the employment of a laser velocimeter to obtain data concerning the mean
H. L. Seegmiller +2 more
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Transonic flow in unconventional nozzles.
AIAA Journal, 1968The description of the compressible gas flow in the throat region of unconventional rocket nozzles must be known in order to optimize the wall contours and to predict the performance. The existence of both subsonic and supersonic flow in close proximity does not permit the use of conventional analytical techniques to obtain a mathematical description ...
Hopkins, D. F., Hill, D. E.
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2015
Abstract This chapter considers the far field in the two-dimensional flow past an arbitrary body, assuming that M∞ = 1 .The corresponding solution of the Euler equations can be found in a self-similar form. In this solution, the flow, that is subsonic in front of the body, experiences acceleration to become supersonic before it reaches a
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Abstract This chapter considers the far field in the two-dimensional flow past an arbitrary body, assuming that M∞ = 1 .The corresponding solution of the Euler equations can be found in a self-similar form. In this solution, the flow, that is subsonic in front of the body, experiences acceleration to become supersonic before it reaches a
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1989
Transonic flow is generally associated with the inviscid fluid effects when a flow with a freestream Mach number M ∞ ≃ 1 accelerates to locally supersonic velocities, or decelerates to locally subsonic velocities, as it moves streamwise past a body. However, transonic flows can occur in many other circumstances such as on high lift devices at low M ...
E. M. Murman +2 more
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Transonic flow is generally associated with the inviscid fluid effects when a flow with a freestream Mach number M ∞ ≃ 1 accelerates to locally supersonic velocities, or decelerates to locally subsonic velocities, as it moves streamwise past a body. However, transonic flows can occur in many other circumstances such as on high lift devices at low M ...
E. M. Murman +2 more
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Non-isentropic potential formulation for transonic flows
21st Aerospace Sciences Meeting, 1983A potential equation for nonisentropic transonic flows is formulated. This procedure captures shock waves with Rankine-Hugoniot strengths, but retains the simplicity of the traditional potential equation. Numerical computations are presented that verify the efficiency of the present procedure. It is also shown that Crocco theorem [\textit{L. Crocco}, Z.
Klopfer, Goetz H., Nixon, David
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Transonic flow past lifting wings.
AIAA Journal, 1973Work conducted by Norstrud (1971) has been extended to lifting flows with the inclusion of embedded continuous supercritical regions. The approach taken follows some fundamental steps proposed for two-dimensional flows by Oswatitsch (1950). The governing integral equation is replaced by a system of nonlinear algebraic equations.
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The Quarterly Journal of Mechanics and Applied Mathematics, 1998
Summary: The structure of the flowfield in the vicinity of the trailing edge of a flat plane at zero incidence in mixed transonic flow has been studied using viscous-inviscid interaction methods. The resulting nonlinear partial differential equations governing the flow were solved numerically using finite-difference methods for a range of values of a ...
Bodonyi, R. J., Kluwick, A.
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Summary: The structure of the flowfield in the vicinity of the trailing edge of a flat plane at zero incidence in mixed transonic flow has been studied using viscous-inviscid interaction methods. The resulting nonlinear partial differential equations governing the flow were solved numerically using finite-difference methods for a range of values of a ...
Bodonyi, R. J., Kluwick, A.
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Mathematical Problems in Transonic Flow
Canadian Mathematical Bulletin, 1986AbstractWe present an outline of the problem of irrotational compressible flow past an airfoil at speeds that lie somewhere between those of the supersonic flight of the Concorde and the subsonic flight of commercial airlines. The problem is simplified and the important role of modifying the equations with physics terms is examined.
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Gurney Flaps in Transonic Flows
2003The application of Gurney flaps to airfoils, high aspect ratio wings and delta wings in transonic flow is being investigated at the Institute of Aerodynamics and Flow Technology of DLR. The present paper gives an overview over these studies explaining the basic working principles and advantages of these trailing edge devices at transonic Mach numbers ...
Rosemann, Henning, Richter, Kai
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