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Published in:
2016 | OriginalPaper | Chapter
Time-Averaged Hydrodynamic Equations for Mobile-Bed Conditions
Authors : Konstantinos Papadopoulos, Vladimir Nikora, Stuart Cameron, Mark Stewart, Hamish Biggs, Christopher Gibbins
Published in: Hydrodynamic and Mass Transport at Freshwater Aquatic Interfaces
Publisher: Springer International Publishing
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Abstract
The objective of this paper is to expand the framework of the conventional Reynolds-Averaged Navier-Stokes equations for the study of mobile-boundary flows. The temporal averaging concept is discussed first, including relevant definitions and theorems. Time-averaged continuity, momentum, mass-transport and stress balance equations are then derived. These new equations contain additional terms that represent the mobile-boundary effects. Potential applications of the proposed equations include flow-biota interactions and sediment dynamics, among others.