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Plume is a flow commonly encountered in nature and our daily life that is driven only by the density difference between the flow and the receiving environment. The source of the density difference can be the difference in temperature, e.g., smoke plume formed above the chimney

released by the combustion processes. The large scale flow is studied using finhe difference techniques to solve large eddy simulations of the Navier-Stokes equations, As a first test of the numerical approach a buoyant helium plume k simulated and results compared to a companion laboratory experiment.

Abstract. Observations of solar prominences reveal a complex, dynamic flow field within them. The flow field within quiescent prominences is characterized by long “threads ” and dark “bubbles ” that fall and rise (respectively) in a thin sheet. The flow field in active prominences display more helical motions that travel along the axis of the prominence. We explore the possible dynamics of both of these with the aid of 2.5D MHD simulations. Our model, compressible plasma possesses density and temperature gradients and resides in magnetic field configurations that mimc those of a solar prominence. We present results of various configurations and discuss the nonlinear behavior of the resulting dynamics. 1

and other research outputs LIF measurement of the diluting effect of surface waves on turbulent buoyant plumes. Journal Article

The dynamics of buoyant plumes. such as those observed at the mouths of the Mississippi and Connecticut Rivers is investigated by considering the one-dimensional. time dependent behavior of a two-layer. frontal model. The equations governing the flow in ihe main body of the plume are the long wave

,rate of heatrelease,initial plume momentum,and atmosphericstratificationon the agingprocess.Results indicatethat the coagulationprocesscan be "frozen " if the entrainmentof uncontaminatedair into the plume sufficientlydilutes the particulateconcentration.Calculationsof the numberflux and theparticlesizeD32

The behavior of buoyant plumes driven by variable momentum inputs were examined using an adaptive Navier-Stokes solver (Gerris). Boundary conditions were representative of an idealized stratified, coastal environment. Salinity ranged from 5 to 30 in the top 5 m of the water column to replicate

This paper reports an experimental study on a buoyant plume in an attempt to simulate a real turbulent flow. The measurements are done by a set of hot and cold-wire around buoyant plume which was generated by forcing a jet of hot air vertically up into quiescent environment. High Reynolds number

Abstract: The relationship between ephelometer and transmissometer measurements in the buoyant and non-buoyant plume above the TAG vent field have been investigated by calculating a phase angle between these two instruments, denoted as-v,. This method indicates three distinct particle populations