Highly-resolved numerical simulations of bed-load transport in a turbulent open-channel flow
Bernhard Vowinckel
Broschiertes Buch

Highly-resolved numerical simulations of bed-load transport in a turbulent open-channel flow

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Phase-resolving Direct Numerical Simulations of bed-load transport in a horizontal turbulent open-channel flow at small relative submergence are presented. The thesis provides a detailed study addressing the impact of the choice of collision model on the scenario of bed-load transport and presents statistical tools to identify and describe the key-mechanisms governing the fluid-particle interaction. The Double-Averaging Methodology is applied for the first time to the situation of mobile rough beds. This methodology provides a framework to convolute the data in such a way that the most promine...