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De Vriend, H.J. (author)This report describes an extensive experiment on steady turbulent flow in a rather sharply curved U-shaped flume with a shallow rectangular cross-section, under almost the same conditions as earlier, less extensive measurements in the same flume. The experiment was carried out as a part of a research project aiming at a mathematical model of the...report 1979
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De Vriend, H.J. (author)After the study of fully developed and developing steady laminar flow in curved channels of shallow rectangular wet cross-section (see earlier reports in this series), steady turbulent flow in such channels is investigated as a next step towards a mathematical model of the flow in shallow river bends. A mathematical model is developed for this...report 1979
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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
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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
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- Van-Den-Berg, B. (author), Elsenaar, A. (author), Lindhout, J.P.F. (author), Wesseling, P. (author) journal article 1975
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Lumley, J.L. (author), Khajeh-Nouri, B. (author)A rational closure technique is presented for the first and second moment-equations in a stratified, contaminated turbulent flow, Following the application of high Reynolds/Peclet number approximations, remaining third moments are expanded about the isotropic, homogeneous state. The stratified, uncontaminated case reduces to seventeen equations...report 1973
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van den Berg, B. (author)The law of the wall has been extended to three-dimensional flows, The effects of both the pressure gradient and the inertial forces have been considered. The deduced wall law is valid when the deviations from the simple two-dimensional law of the wall are small. Agreement with measurements is found within the possible experimental error.report 1973
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van den Berg, B. (author), Elsenaar, A. (author)On a wind tunnel model, especially designed to check calculation methods, measurements were made of a three-dimensional turbulent boundary layer under infinite swept wing conditions in an adverse pressure gradient, with a three-dimensional separation near the trailing edge. Accurate measurements of the external flow field, the mean velocity...report 1972