Browsing by Author "Diplas, Panayiotis"

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Accounting for the role of turbulent flow on particle dislodgement via a coupled quadrant analysis of velocity and pressure sequences

Shih, WuRong; Diplas, Panayiotis; Çelik, Ahmet Ozan; Dancey, Clinton (Elsevier Sci LTD, 2017)

Recent studies have demonstrated the importance of duration, in addition to magnitude, of energetic turbulent events on particle dislodgement under threshold of motion conditions. It is therefore proposed here that the use ...
Instantaneous turbulent forces and impulse on a rough bed: Implications for initiation of bed material movement

Çelik, Ahmet Ozan; Diplas, Panayiotis; Dancey, Clint L. (Amer Geophysical Union, 2013)

The overall objective of this study is to identify the physical mechanisms responsible for the entrainment of an exposed particle subject to rapidly fluctuating hydrodynamic forces in the case of channel flow with a fully ...