Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Adjustment of Friction in Hydraulic Models of Lakes
For complete dynamic similarity between a hydraulic model of a lake or closed basin and its prototype, both the Froude number and the Proudman number must be equal in the model and the prototype. For turbulent flow the Proudman number can not be explicitly determined and adjustment of model friction may be required. A method for adjustment of model friction is described which requires comparison of the damping of a standing long wave (or seiche) in the prototype and in the model basin. Assuming that the model frictional resistance could be decomposed into smooth boundary resistance and the resistance due to the addition of roughness elements, a mathematical formulation was developed for use in predicting the decay modulus for a roughened model basin. Good agreement was found between the analytical predictions and experimental results.
Adjustment of Friction in Hydraulic Models of Lakes
For complete dynamic similarity between a hydraulic model of a lake or closed basin and its prototype, both the Froude number and the Proudman number must be equal in the model and the prototype. For turbulent flow the Proudman number can not be explicitly determined and adjustment of model friction may be required. A method for adjustment of model friction is described which requires comparison of the damping of a standing long wave (or seiche) in the prototype and in the model basin. Assuming that the model frictional resistance could be decomposed into smooth boundary resistance and the resistance due to the addition of roughness elements, a mathematical formulation was developed for use in predicting the decay modulus for a roughened model basin. Good agreement was found between the analytical predictions and experimental results.
Adjustment of Friction in Hydraulic Models of Lakes
Shiau, Jong-Chiang (Autor:in) / Rumer, Ralph R. (Autor:in)
Journal of the Hydraulics Division ; 99 ; 2251-2262
01.01.2021
121973-01-01 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
| Engineering Index Backfile | 1939
Closing discussion of friction in hydraulic models
| Engineering Index Backfile | 1939
ROAD SURFACE SLIP FRICTION ADJUSTMENT STRUCTURE, ADJUSTMENT DEVICE, AND ADJUSTMENT METHOD
| Europäisches Patentamt | 2024
Hydraulic Modeling of Mixing in Stratified Lakes
| ASCE | 2021