Influence of Inertia on Inverse Fluidization in a narrow rectangular channel: An Experimental Study

The presence of particles in a flow can change the flow behaviour in an unpredictable manner, that leads us to multiphase flow. Multiphase flows are present in nature and in everyday life around us. The most common example of a multiphase flow, that one can think of, is the treatment of drinking water using liquid-solid fluidization in softening...

Do logarithmic terms exist in the drag coefficient of a single sphere at high Reynolds numbers?

At the beginning of the second half of the twentieth century, Proudman and Pearson (J. Fluid. Mech.,2(3), 1956, pp.237–262) suggested that the functional form of the drag coefficient (C_D) of a single sphere subjected to uniform fluid flow consists of a series of logarithmic and power terms of the Reynolds number (Re). In this paper...

Numerical investigation of atomisation using a hybrid Eulerian-Lagrangian solver

This study investigates the potential of a newly released multi-phase solver to simulate atomisation in an air-blast type atomiser. The 'VOF-to-DPM' solver was used to simulate primary and secondary atomisation in an atomiser with a coaxial injector-like geometry. The solver uses a hybrid Eulerian/Eulerian-Lagrangian formulation with...

A review of the methods of modeling multi-phase flows within different microchannels shapes and their applications

In industrial processes, the microtechnology concept refers to the operation of small devices that integrate the elements of operational and reaction units to save energy and space. The advancement of knowledge in the field of microfluidics has resulted in fabricating devices with different applications in micro and nanoscales. Micro-and nano...

Numerical Investigation of Spray Formation in Air-Blast Atomizers: Numerical study of air-blast atomization using a hybrid volume of fluid/discrete phase solver

The conducted study investigates the potential of a newly released multi-phase solver to simulate atomization in liquid rocket injectors. The "VOF-to-DPM" solver was used to simulate primary and secondary atomization in an air-blast atomizer with a coaxial injector-like geometry. The solver uses a hybrid Eulerian/Eulerian-Lagrangian formulation...

Implementation of Choke Models in AD-GPRS

This report concerns the addition of a new well control option ‘Flow Through Surface Choke’ (CHK) to AD-GPRS, the Automatic Differentiation General Purpose Research Simulator developed at Stanford University. The report provides background information on the modelling of fluid flow through surface chokes and gives details of the implementation...

A Mass-Conserving Hybrid interface capturing method for geometrically complicated domains

A Robust Flux Splitting on Simulation of Transient Cavitated Flows Based On Single and Two Fluid Models

In this paper, a modification of pressure-velocity diffusion terms in AUSMDV is proposed to compute the compressible cavitated liquid-gas flows. As we know, cavitation phenomena are widely seen in multi-phase flow with different sizes of time and length scale. An accurate resolution of multi-scale phenomena such as material interfaces, contact...