CFD–DEM model for coupled heat and mass transfer in a spout fluidized bed with liquid injection

CFD–DEM model for coupled heat and mass transfer in a spout fluidized bed with liquid injection
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用于注液喷管流化床中传热传质耦合的 CFDâDEM 模型

DOI:
10.1016/j.cej.2015.11.044
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发表时间:
2016
影响因子:
15.1
通讯作者:
J.A.M. Kuipers
J.A.M. Kuipers
中科院分区:
工程技术1区
文献类型:
--
作者:
V. S. Sutkar;N.G. Deen;A.V. Patil;V. Salikov;S. Antonyuk;S. Heinrich;J.A.M. Kuipers

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在本文中,我们提出了一种新的CFD-DEM模型来模拟喷动床内的热质耦合。在我们的CFD-DEM方法中,粒子和液滴都被视为离散单元。在进行实际模拟之前,通过分析规定的恢复系数(定义值和应用值之间的差值)中的误差,执行了许多测试来确定最佳粒子碰撞时间步长。随后,我们对一个选定的案例进行了模型测试,作为原则证明。在本试验方案中,研究了在喷动充气(分散喷动)条件下,喷吹水滴对带导流板的准2D喷动床动力学的影响。将计算结果与粒子图像测速仪(PIV)和红外热像仪(IRT)相结合的实验结果进行了比较。
In this paper, we present a novel CFD–DEM model for coupled heat and mass transfer in a spout fluidized bed with liquid injection. In our CFD–DEM approach both particles and droplets are treated as discrete elements. Before actual simulations were conducted, a number of tests were performed to determine the optimum particle collision time step by analysing the error in the prescribed restitution coefficient (difference between defined and applied values). Subsequently we test the model for a selected case as a proof-of-principle. In this test case, the effect of liquid injection on dynamics of a pseudo-2D spout fluidized bed with draft plates was demonstrated for the fluidized bed-spouting-with-aeration (dispersed spout) regime with injection of water droplets. The computational results were compared with experimental results that were obtained through a unique combination of particle image velocimetry (PIV) and infrared thermography (IRT).
DOI: 10.1002/aic.14719
发表时间: 2015
期刊: Aiche Journal
影响因子: 3.7
作者:
V.S. Sutkar;N.G. Deen;A.V. Patil;E.A.J.F. Peters;J.A.M. Kuipers;V. Salikov;S. Antonyuk;S. Heinrich
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期刊:
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发表时间: 1993-10-01
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DOI: 10.1016/j.ces.2013.10.005
发表时间: 2013-12
影响因子: 4.7
作者:
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通讯作者: Vinayak S. Sutkar;Ng Niels Deen;Bhageshvar Mohan;V. Salikov;S. Antonyuk;S. Heinrich;J. Kuipers