This paper aims to compare the results of two commonly used methods for the simulation of cavitating flows; one is the two phase mass transfer approach and the other is a homogenous equilibrium model. Both methodologies are compared in a shock tube and a throttle flow, which resembles the constrictions in Diesel injector passages. The mass transfer rate in the two phase model plays the fundamen...

This experimental paper presents a study of gas-liquid two phase flow in rectangular channels of 500μm x 45μm and 23.7mm long with different wall conditions of hydrophilic and hydrophobic surface, in order to investigate the flow structures and the corresponding friction factors of simulated microchannels of PEMFC. The main flow in the channel is air and liquid water is injected at a single or ...

Accurate simulation of flow behaviors in fractured porous media is challenging. We present a discontinuous Galerkin (DG) approximation and continuous (CG) for compressible single- two-phase with conducting (high permeable) blocking (low fractures using mixed-dimensional approach which the fracture described as reduced-dimensional interface coupled linear transmission conditions. The proposed DG...

Different flow patterns of downward gas-liquid two-phaseflow using simple mixer are studied in an experimental manner. An experimental setup is designed and fabricated to allow the visual observation of downward two-phase flow patterns and their transitions. The flow patterns are recorded by a 1200 frames per second high speed video camera. The quality of downward two-phase flow patterns photos...

The potential bioconversion of synthesis gas (syngas) to fuels and chemicals by microbial cell has attracted considerable attention in past decade. The feasibility of enhancing syngas bioconversion to ethanol and acetate using Clostridium ljungdahlii in a continuous tank bioreactor (CSTBR), kinetics and mass transfer coefficient of carbon monoxide (CO) utilization were evaluated. Two different ...

The manifold microchannel (MMC) heat sink, which possesses better transfer performance and less pressure drop than the traditional has attracted much attention from researchers in recent years. But not of them, either single-phase or two-phase ones, focused on problems about flow maldistribution wall temperature nonuniformity that might ultimately lead to system breakdown. To investigate distri...