Summary of velocity measurements at DHI

A series of comprehensive velocity measurements was carried out on the three dimensional model of the berm breakwater at the Danish Hydraulic Institute (DHI) in September 1995. Those measurements were a part of the research on berm breakwaters within the MAST II programme sponsored by the Commission of the European Communities. The major part of...

Prediction of mean flow data for adabatic 2-D compressible turbulent boundary layers

Flow Equations for River Bends Derived by Tensor Calculus and Flow Acceleration in Depth-Averaged Models

Flow equations for application in river bends are derived. Coordinate transformations are achieved by tensor calculus. The momentum equations are formulated in a cylindrical coordinate system and in a cylindrical bed-following coordinate system. The depth-averaged momentum equations in a cylindrical bed-following coordinate system are derived....

Local Scour: Influence of an exponential eddy viscosity distribution on the longitudial flow velocity

The general purpose of this research project is to model mathematically the local scour downstream of a structure (2-D). The model has to simulate the development of the scour as a function of the time. Basically two models are necessary namely a flow model and a morphological model. The latter model has to describe the bed and suspended load...

Turbulent Channel Flow under the action of surface wind-stress

This report deals with experimental research into the wind profile and turbulent current distribution measurements in a wind-water tunnel. Host attention was paid to the water velocity profile as influenced by the wind. It is confirmed that the velocity distribution of the current essentially follows the log law near the air-water interface as...

Reproduction of Velocity Profiles in Estuaries by some One-Dimensional Mathematical Models

For the prediction of dispersion phenomena and of changes in the morphology of an alluvial bottom, a detailed description of the water flow is necessary. The flow in estuaries is a complicated one, partly because of the time-dependence. To isolate this aspect of tidal flow a simplifying one-dimensional (vertical) flow model 1S used. This one...