Searched for: mods_note_institution_s:"Von%5C+Karman%5C+Institute%5C+for%5C+Fluid%5C+Dynamics"
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Leprince, F. (author)
The cycle-counting function of LDV processors provides a means of measuring the transit time of a seed particle in the probe volume in order to correct velocity bias and velocity gradient errors by weighting individual velocity measurements by the transit time. The main objectives of the investigation are to study the dependence of the number of...
report 1991
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Benocci, C. (author)
An overview is given of the current state of single-point turbulence modelling for flows including heat transfer. The different levels of eddy viscosity closure are covered, together with algebraic and full Reynolds stress models. Emphasis is given to the different approaches possible for the modelling of wall effects on turbulence. The specific...
report 1991
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Pianese, C. (author), Benocci, C. (author)
The purpose of the present work is to simulate numerically the spatially developing plane mixing layer solving the three dimensional incompressible Navier-Stokes equations in the primitive variables u - p formulation with the Large Eddy Simulation model of turbulence. Discretization in space is achieved using a finite volume technique on a...
report 1991
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Simeonides, G. (author)
report 1990
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Bewley, T.R. (author)
The generation of smooth; orthogonal, body fitted grids is an important first step towards the accurate numerical solution of fluid flows using finite difference methods. To produce a suitable grid for a numerical computation, a powerful grid generation technique employing conform al mappings has been developed, and is summarized in this report....
report 1990
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Arts, T. (author), Lambert de Rouvroit, M. (author), Rutherford, A.W. (author)
This contribution deals with an experiment al aero-thermal investigation of a highly loaded transonic turbine nozzle guide vane mounted in a linear cascade arrangement. The measurements were performed in the von Karman Institute short duration Isentropic Light Piston Compression Tube facility, allowing a correct simulation of Mach and Reynolds...
report 1990
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de Plama, P. (author), Deconinck, H. (author), Struijs, R. (author)
The subject of this work is the implementation of a new technique to solve the 2-D Euler equations by modeling the solution with a discrete number of simple waves. The theory of this decomposition was proposed by P. L. Roe in 1985 but was never put successfully into practice before. The global solution is obtained by superposition of elementary...
report 1990
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Catalano, L.A. (author), Deconinck, H. (author)
This report provides a numerical technique for optimizing the smoothing properties of multi-stage explicit time integration schemes for à general spatial discretization of the 2D advection equation. The optimized scheines have been implemented as smoothers in a multigrid code and their efficiency is compared with the classical Runge-Kutta...
report 1990
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report 1986
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report 1986
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Wendt, J.F. (author)
report 1984
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Vigevand, L. (author)
In order to introduce compressibility effects in a potential model of the vortical flow past a sharp leading edge delta wing, a numerical approach using finite differences applied to a non linear governing equation seems necessary. As a preliminary step, the conical line vortices model of Brown and Michael has been considered and adapted to a...
report 1981
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Frigne, P. (author), van den Braembussche, R. (author)
A one dimensional computation method for the design of a centrifugal compressor is developed, which takes into account various real flow effects, such as flow separation in the impeller, jet-wake mixing in the vaneless space, transonic vaned diffuser performance and diffuser outlet dump diffusion. Several numerical examples are worked out in...
report 1979
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van Hove, W. (author), Arts, A. (author)
The one dimensional, inviscid, transonic flow with shock through a convergent divergent nozzle is used as a test case to compare several explicit finite difference schemes for time marching methods. The comparison was carried out both theoretically and numerically, and accounted for stability conditions and convergence speed. Additional means to...
report 1979
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Borrego, C. (author), Olivari, D. (author)
An experimental investigation of the flow development of a turbulent air jet of circular cross section exhausting into still air has been carried out. The flow field was examined at locations varying from two to twenty diameters downstream of the nozzle. A method for measuring certain parameters relevant to the mixing process has been tested...
report 1979
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Forsching, H. (author), Sandford, J. (author)
report 1979
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Consigny, H. (author), Chan, C.K. (author), Richards, B.E. (author)
This note presents measurements of heat transfer to a cold surface at conditions simulating advanced aircraft gas turbine flow conditions. They were obtained under isothermal wall conditions in a short duration isentropic light piston tunnel using surface temperature transient techniques. The effects of external turbulence and strong favourable...
report 1979
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Richards, B.E. (author)
This paper provides a review of kinetic heating as related to high speed tactical .missiles. The aspects considered are: the design problem; areas in which kinetic heating is important; the prediction of heating in attached and separated flows; measurements on configurations in flight and in wind tunnels; ground simulation of flows over models;...
report 1979
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Wanner, J.C. (author)
report 1978
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Wanner, J.C. (author)
report 1978
Searched for: mods_note_institution_s:"Von%5C+Karman%5C+Institute%5C+for%5C+Fluid%5C+Dynamics"
(1 - 20 of 140)

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