Results 301 to 310 of about 70,445 (357)
Some of the next articles are maybe not open access.
The simulation of unsteady transonic flow and the stability of a transonic boundary layer
Journal of Applied Mathematics and Mechanics, 2005The authors discuss modification of a model (see \textit{O. S. Ryzhov} [Sov. Phys. Dokl. 22(1977), 537--539 (1978; Zbl 0359.76036)]) for investigation of free nonstationary visco-nonviscous interaction at transonic velocities. The model modification consists in taking into account a singular term of transonic extension and allows to refine the Lin ...
Bogdanov, A. N., Diesperov, V. N.
openaire +2 more sources
Analysis of nonlinear transonic blockage in unsteady transonic flows
28th Fluid Dynamics Conference, 1997Numerical simulation of the oscillation of strong to weak shocks in a Laval nozzle, due to downstream static pressure sinusoidal fluctuations, is presented. The strong shock motion is mainly harmonic. However, static pressure signals, recorded near the shock/boundary layer interaction and on the axis downstream of the shock, show several higher modes ...
P. Ferrand +7 more
openaire +1 more source
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.
openaire +1 more source
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.
openaire +1 more source
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.
openaire +3 more sources
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.
openaire +1 more source
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.
openaire +1 more source
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 ...
openaire +1 more source
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 ...
openaire +1 more source
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
openaire +2 more sources
Notes on the Transonic Indicia! Method
AIAA Journal, 1978The indicial method for calculating flutter derivatives for two-dimensional airfoils at transonic speeds is discussed, with particular attention given to the effect of a moving shock on the flow variables in the indicial method. An expression for the pressure coefficient is developed on the basis of an explicit treatment of the shock motion; the ...
openaire +2 more sources
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.
openaire +2 more sources
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
openaire +1 more source