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Chen, C.J. (author), Singh, K. (author)The use of second order closure turbulence model in predicting turbulent flows is known to be more successful than the classical mixing length model. However, it is found that if the turbulence constants are not altered or modified, the second order closure turbulence model is unable to predict satisfactorily f or some flows such as round jet...report 1985
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- Uittenbogaard, R.E. (author) report 1986
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Jovic, S. (author), Ramaprian, B.R. (author)An experimental study of the developing two-dimensional turbulent wake behind a streamlined flat-plate is reported. The purpose of this study was to understand the evolution of the wake structure from the one characteristic of the boundary layer to that characteristic of the far-wake, and to investigate whether organized motions are present in...report 1986
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- Flokstra, C. (author) report 1986
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- Abraham, G. (author) report 1986
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Hoffmans, G.J.C.M. (author)The general purpose of this research project is to model mathematically the scour-hole downstream of a structure (2-D). The model has to simulate the development of the scour as a function of time. Basically two models are necessary namely a flow model and a morphological model. The latter has to describe the bed- and suspended load and the...report 1988
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- Flokstra, C. (author) report 1988
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- Pietrzak, J. (author), Kranenburg, C. (author), Abraham, G. (author) report 1988
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Wang, X.K. (author)Experiments to measure forces on objects in open channel flow behind a bacward facing stepreport 1988
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- Mierlo, M.C.L.M. van (author), Ruiter, J.C.C. de (author) report 1988
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Okayasu, A. (author)The characteristic motion of water under breaking waves and the turbulence structure in the surf zone were investigated through detailed two-dimensional velocity measurements in a wave flume. Significant difference was found between the breaking processes in the outer and inner regions of the surf zone. The velocity field in each region consists...report 1989
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Lehfeldt, R. (author)The density distribution within a fluid is of great importance for flow and transport phenomena in geophysical computational fluid dynamics. All turbulent exchange processes are influenced by buoyancy effects and must be adequately considered in numerical models. Parameterizations of the vertical eddy viscosity and eddy diffusivity are presented...report 1991
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Bernard, R.S. (author), Schneider, M.L. (author)Without some correction for the interaction between lateral curvature and vertically nonuniform velocity, depth-averaged numerical models cannot predict the gradual migration of high velocity toward the outside of channel bends. Conventional depth-averaging does not account for the curvature-induced secondary flow that gives rise to the...report 1992
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Hoffmans, G.J.C.M. (author)Scour is the lowering of the sea or river-bed as a result of non-equilibrium sediment transport conditions and can be divided into several categories (Breusers and Raudkivi, 1991). Local scour, which may occur at the base of a structure because of the affected flow pattern, can severely endanger the stability of this structure. Many varieties of...report 1993
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- Uittenbogaard, R.E. (author) report 1993
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- Uittenbogaard, R.E. (author), Imberger, J. (author) report 1993
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- Hin, A.J.S. (author) doctoral thesis 1994
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- Skare, P.E. (author) report 1995
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- Aswatha Narayana, P.A. (author) report 1995
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Rodi, W. (author), Bonnin, J.C. (author), Buchal, T. (author)This document contains the calculation results for 5 test cases and the description of calculation methods submitted to the ERCOFTAC Workshop on Data Bases and Testing of Calculation Methods for Turbulent Flows held in Karlsruhe from April 3 to 7, 1995. The workshop was an outcome and marked the end of the research project "Data Validation and...report 1995