Results 231 to 240 of about 29,033 (285)
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AIAA Journal, 1980
Introduction B the term transonic compressor we mean an axial flow compressor in which the inlet flow Mach number, relative to the rotating blades, varies from below unity at radii near the inner casing or hub to values substantially above unity at radii near the blade tips.
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Introduction B the term transonic compressor we mean an axial flow compressor in which the inlet flow Mach number, relative to the rotating blades, varies from below unity at radii near the inner casing or hub to values substantially above unity at radii near the blade tips.
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MIXED EQUATIONS AND TRANSONIC FLOW
Journal of Hyperbolic Differential Equations, 2004This paper reviews the present situation with existence and uniqueness theorems for mixed equations and their application to the problems of transonic flow. Some new problems are introduced and discussed. After a very brief discussion of time-dependent flows (Sec. 1) the steady state and its history is described in Sec. 2. In Secs.
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Journal of Applied Mathematics and Mechanics, 1987
The problem of finding the particular solutions of the linearized inhomogeneous transonic equations appearing in the transonic expansions, expressed explicitly in terms of the fundamental solution of the Kármán-Fal'kovich equation, is discussed.
Brezhnev, A. L., Chernov, I. A.
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The problem of finding the particular solutions of the linearized inhomogeneous transonic equations appearing in the transonic expansions, expressed explicitly in terms of the fundamental solution of the Kármán-Fal'kovich equation, is discussed.
Brezhnev, A. L., Chernov, I. A.
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Meccanica, 1966
The problem of the existence of a transonic flow without a shock wave is still unsolved, notwithstanding even very recent research work, including the fundamental work done byMorawetz andManwell: all these researches consider the flow on the odographic plane, and the essential observation that may be made concerning them is that they show the non ...
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The problem of the existence of a transonic flow without a shock wave is still unsolved, notwithstanding even very recent research work, including the fundamental work done byMorawetz andManwell: all these researches consider the flow on the odographic plane, and the essential observation that may be made concerning them is that they show the non ...
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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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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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Calculation of Transonic Aileron Buzz
AIAA Journal, 1979An implicit finite-difference computer code that uses a two-layer algebraic eddy viscosity model and exact geometric specification of the airfoil has been used to simulate transonic aileron buzz. The calculated results, which were performed on both the Illiac IV parallel computer processor and the Control Data 7600 computer, are in essential agreement ...
Steger, J. L., Bailey, H. E.
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On Some Aspects of the Transonic Controversy
SIAM Journal on Applied Mathematics, 1987The authors investigate the ''transonic controversy'' by developing perturbation series on a computer and show that shockless transonic flow depends on the boundary condition imposed. This result sheds new light on the problem but does not resolve the old controversy.
Kwok, Yue-Kuen, Sirovich, Lawrence
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Perturbation of a discontinuous transonic flow
15th Aerospace Sciences Meeting, 1977The main difficulty in perturbing a discontinuous transonic flow is in the representation of the shift in the location of the discontinuity (shock wave). Herein presented is a method of overcoming this difficulty by using a distorted airfoil as the initial case rather than the real physical airfoil; the distortion is chosen such that the shock location
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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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