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Velldman, A.E.P. (author), Lindhout, J.P.F. (author), de Boer, E. (author)
A description is given of VISIAN - a simulation method for 2-D viscous flows with strong viscous-inviscid interaction. The mathematical mode and the numerical algorithm are presented. VISIAN has been coupled with the inviscid-flow solver TRAPS. Results are shown for a number of airfoils; a comparison is made with results from other computations...
report 1988
document
Humphreys, D.A. (author), van den Berg, B. (author), Krause, E. (author), Lindhout, J.P.F. (author)
The results of several three-dimensional turbulent boundary layer calculations have been compared with each other and with experiment for a number of test cases. The calculation methods applied range from integral methods to field methods using a turbulence model based upon the Reynolds stress transport equations. The test cases comprise various...
report 1985
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Veldman, A.E.P. (author), Lindhout, J.P.F. (author)
A presentation is given of VISIAN, an analysis system for viscous-inviscid strong interaction. The code is based on a quasi-simultaneous solution procedure for viscous and inviscid parts of the flow field. The viscous region is calculated with an extension of the classical boundary-layer equations, featuring effects of normal pressure gradients...
report 1984
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Troost, C.K. (author), Kemper, C.A.L. (author), Verbruggen, T.W. (author), van der Wijngaart, R.F. (author), Lindhout, J.P.F. (author), van der Draai, R.K. (author)
System design studies for medium scale power plants with a closed cycle MHD topping have been performed. These studies show a potential for early commercialization of the direct energy conversion technology for both coal and natural gas fired utility installations. As a first step towards the large scale application of MHD, this technology can...
report 1984
document
Lindhout, J.P.F. (author), Cousteix, J. (author), Humphreys, D. (author), Smith, P.D. (author), Kordulla, W. (author)
report 1984
document
Veldman, A.E.P. (author), Lindhout, J.P.F. (author)
An outline is presented of a new code, called VISIAN, for the analysis of aerodynamic flows with strong viscous-inviscid interaction. The code is based on the recently developed quasi-simultsuieous method for the calculation of strongly interacting boundary layers. The feasibility of this method has already been demonstrated liy means of a...
report 1983
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Lindhout, J.P.F. (author), de Boer, E. (author), van den Berg, B. (author)
A computational method is presented for threedimensional turbulent boundary layers. The turbulence model is a simple eddy-viscosity formulation. An hybrid difference scheme is used, which has the robustness of first order schemes and accuracy of second order schemes. The boundary layer is computed in the region of determinacy of the initial data...
report 1982
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de Boer, E. (author), Lindhout, J.P.F. (author)
The present report gives a brief survey of the theoretical background and the practical use of the boundary layer calculation system BOLA for the calculation of 3D laminar and turbulent boundary layers over non-developable STirfaces. A description of the driverprogram DRIBOLA which controls the BOLA processing, is included.
report 1982
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Lindhout, J.P.F. (author), de Bruin, A.C. (author), Gooden, J.H.M. (author)
The computation is described of three-dimensional boundary layers in non-orthogonal coordinate systems. The turbulence model is a simple eddy-viscosity formulation. The boundary layer is computed in the region of determinacy of the initial data; no extra information is required along lateral boundaries. An hybrid difference scheme is used....
report 1982
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Lindhout, J.P.F. (author), van den Berg, B. (author), Elsenaar, A. (author)
At the workshop nine participants presented the results of their calculations for a practical test case. The test case deals with the 3D turbulent boundary layer development, including separation, on the root section of a swept wing. The employed calculation methods comprise 3D integral methods as well as field methods. A short description of...
report 1981
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Lindhout, J.P.F. (author), van den Berg, B. (author)
Paper presented on the third GAMM-Conference on Numerical Methods in Fluid Mechanics, October 10 - 12, 1979, Cologne, Federal Republic of Germany.
report 1979
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Lindhout, J.P.F. (author), Moek, G. (author), de Boer, E. (author), van den Berg, B. (author)
This paper gives a description of a calculation method for 3D turbulent and laminar boundary layers on non-developable surfaces. A simple eddy viscosity model is incorporated in the method. Special attention is given to the organization of the computations to circumvent as much as possible stepsize limitations. The method is also able to proceed...
report 1979
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Lindhout, J.P.F. (author), de Boer, E. (author)
This report consists of two parts. The first part describes a finite-difference scheme for the computation of 3D laminar boundary layers over developable surfaces. The stability of the first variation of the difference scheme is investigated. Some results of actual boundary-layer calculations are presented for flows over swept wings. The second...
report 1976
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Lindhout, J.P.F. (author), de Boer, E. (author)
A method is presented to compute the 3D compressible turbulent boundary layer on an adiabatic wall under infinite swept wing conditions. The mathematical model of turbulence is based on a generalisation of Bradshaw's 2D shear stress equation. This results in a system of 5 equations valid along 5 distinct characteristics. A brief discussion is...
report 1975
document
Snel, H. (author), Lindhout, J. (author), Merck, W. (author), Houben, J. (author)
report 1975
document
Lindhout, J.P.F. (author)
A computer program has been prepared for the calculation of turbulent boundary layer development, based on a 3-D version of the turbulent energy method. The method is briefly discussed. The computer program is described in detail. The present program is restricted to developable surfaces.
report 1975
document
Elsenaar, A. (author), van den Berg, B. (author), Lindhout, J.P.F. (author)
An experiment is described in which a three-dimensional boundary layer flow under infinite swept wing conditions is simulated. A description is given of the development of the boundary layer in a region of an adverse pressure gradient leading to increased cross flows and finally terminating in a three-dimensional. separation. Measurements are...
report 1975
document
van den Berg, B. (author), Elsenaar, A. (author), Lindhout, J.P.F. (author), Wesseling, P. (author)
First a three-dimensional turbulent boundary-layer experiment is described. This experiment has been carried out with the specific aim to provide a test-case for calculation methods. Much attention has been paid to the design of the test set-up. An infinite swept wing flow has been simulated with good accuracy. The initially two-dimensional...
report 1974
document
Lindhout, J.P.F. (author), Traas, C.R. (author)
In this report a program in ALGOL (CDC-3300, MBOS (3,2) operating system) is described for the computation of the supersonic flow of a thermally and calorically perfect gas around axisymnetric bodies. Computational details are given and some numerical results are presented. Emphasis is placed on the organization of the program. For a specific...
report 1973
document
Wesseling, P. (author), Lindhout, J.P.F. (author)
A system of partial differential equations which can be used as a mathematical model for three-dimensional incompressible turbulent boundary layers is discussed. Certain mathematical properties of these equations are elucidated. The equations have a finite domain of dependence; this fact considerably simplifies the problem of calculating three...
report 1971
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