A numerical investigation of some approaches to improve mixing in laminar confined impinging streams

Wang, S.J.; Devahastin, Sakamon; Mujumdar, Arun S.

doi:10.1016/j.applthermaleng.2004.06.015

Cited by 28 publications

(8 citation statements)

References 16 publications

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“…Later, several simulations have been performed about the mixing and flow characteristics of two‐dimensional confined opposed jets. Hosseinalipour and Mujumdar31, 32 and Wang et al33 have studied the flow and mixing characteristics of equal and unequal planar opposed jets numerically. The 2D simulation of the laminar opposed jets by Devahastin and Mujumdar34 shows that there is a transition from steady state to oscillation (periodic or random oscillatory) and the transition Reynolds number depends strongly on the geometric configuration.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of flow regimes of axisymmetric and planar opposed jets

Yao

Liu

et al. 2011

AIChE Journal

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in Wiley Online Library (wileyonlinelibrary.com).Dynamic behaviors of axisymmetric and planar opposed jets have been experimentally studied at 786 \ Re \ 6288. The flow patterns were investigated by a smokewire technique, and the smoke-wire photos were recorded by a high-speed camera. Different flow regimes of axisymmetric and planar opposed jets have been identified. Axisymmetric opposed jets exhibit axial quasi-periodic oscillations, stagnation point offsets, and steady states, while planar opposed jets exhibit both horizontal instabilities and deflecting oscillations. Effects of the nozzle separation and the exit Reynolds number on the dynamic characteristics of axisymmetric and planar opposed jets have been investigated and discussed. Maps of parameter spaces describing the flow regimes of axisymmetric and planar opposed jets at various nozzle separations and exit Reynolds numbers have been presented.

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Section: Introductionmentioning

confidence: 99%

Experimental investigation of flow regimes of axisymmetric and planar opposed jets

Yao

Liu

et al. 2011

AIChE Journal

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“…They indicated that multiple opposing jets achieve better mixing than single opposing jets in the study. Wang et al [4] numerically studied the laminar flow in an in-line mixer based on opposing jet impingement. They found that unequal inlet momenta of opposing jets obtained using both equal and unequal slot widths and the addition of baffles in the exit channel yield better mixing over shorter distances after impact.…”

Section: Introductionmentioning

confidence: 99%

An experimental study on thermal mixing in a square body inserted inclined narrow channels

Varol

Kok

Öztop

et al. 2012

International Communications in Heat and Mass Transfer

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“…In their study, they indicated that multiple opposing jets can achieve better mixing than single opposing jets. Wang et al [2], made a numerical investigation to examine mixing efficiency of opposing jets in a confined channel using CFD code FLUENT. Some new design approaches to improve mixing effectiveness under laminar conditions in two-dimensional configurations were studied for different operating conditions and geometric configurations.…”

Section: Introductionmentioning

confidence: 99%

Analysis of thermal mixing in circle shaped body inserted inclined channel

Kok

Varol

Öztop

et al. 2015

Experimental Thermal and Fluid Science

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In this study, thermal mixing (TM) phenomena in a rectangle channel with adiabatic circle shaped body are investigated experimentally. Two parallel jets in different temperatures are located in the channel which has a circular exit hole to supply continuity of mass. Experiments are carried out for different inclination angle (0°, 30°, 60°and 90°) of the channel. Also, effects of ratio of flow rate, jets diameters, and temperature difference between hot and cold jets were analyzed. A circle shaped passive element with low thermal conductivity is located into channel to control thermal mixing. Thermal mixing index is calculated from measured temperatures. Experimental results showed that thermal mixing of fluid is effected from geometric parameters, drastically. It is found that TM is function of the temperature difference of inlet jets.

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A numerical investigation of some approaches to improve mixing in laminar confined impinging streams

Cited by 28 publications

References 16 publications

Experimental investigation of flow regimes of axisymmetric and planar opposed jets

Experimental investigation of flow regimes of axisymmetric and planar opposed jets

An experimental study on thermal mixing in a square body inserted inclined narrow channels

Analysis of thermal mixing in circle shaped body inserted inclined channel

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