Browsing School of Engineering by Author "Zgheib, Nadim"

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Long-lasting effect of initial configuration in gravitational spreading of material fronts

Zgheib, Nadim; Bonometti, Thomas; Balachandar, S. (2019-11-19)

We present the results from laboratory experiments and fully resolved simulations pertaining to finite-release turbulent density flows with a non-axisymmetric initial shape. First, we demonstrate that the effects of the ...
Spreading of non-planar non-axisymmetric gravity and turbidity currents

Zgheib, Nadim; Bonometti, Thomas; Balachandar, S. (2019-12-02)

The dynamics of non-axisymmetric turbidity currents is considered here. The study comprises a series of experiments for which a finite volume of particle-laden solution is released into fresh water. A mixture of water and ...
Two-way coupled direct numerical simulations of sinuous-crested bedforms

Zgheib, Nadim; Balachandar, S. (2019-11-19)

We present results from direct numerical simulations on the transition from straight-crested to sinuous-crested bedforms. The numerical setup is representative of turbulent open channel flow over an erodible sediment bed ...

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