Computational fluid dynamics simulations of interphase heat transfer in a bubbling fluidized bed
Computational fluid dynamics simulations of interphase heat transfer in a bubbling fluidized bed
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鼓泡流化床中相间传热的计算流体动力学模拟
DOI：
10.1007/s11814-014-0022-6
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发表时间：
2014-05
影响因子：
2.7
通讯作者：
Yang Yongrong
中科院分区：
文献类型：
--
作者：
Lungu Musango;Sun Jingyuan;Wang Jingdai;Zhu Zichuan;Yang Yongrong
采用欧拉-欧拉方法对气固流化床内的相间传热进行了数值模拟。采用颗粒流动力学理论描述固相流变学。在预测传热系数方面对阻力模型的评估表明，在所用阻力模型的选择方面没有观察到重大差异。已发现相间传热系数的波动与床层中气泡的运动密切相关。研究了壁面边界条件、入口气速、初始床层高度和颗粒尺寸对传热系数的影响。床层中的典型温度曲线表明，在气体分布器附近瞬时达到热饱和。模拟结果的系数是在公平的协议与文献报道。
Numerical simulations based on the Eulerian-Eulerian approach have been performed in the study of interphase heat transfer in a gas solid fluidized bed. The kinetic theory of granular flow (KTGF) has been used to describe the solid phase rheology. An assessment of drag models in the prediction of heat transfer coefficients shows that no major difference is observed in the choice of the drag model used. Fluctuations of the interphase heat transfer coefficient have been found to be closely related to the bubble motion in the bed. Effects of the wall boundary condition, inlet gas velocity, initial bed height and particle size on the predicted heat transfer coefficient have also been investigated. Typical temperature profiles in the bed show that thermal saturation is attained instantaneously close to the gas distributor. Simulated results of the coefficients are in fair agreement with those reported in literature.
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影响因子：
2.1
作者：
R. Yusuf;M. Melaaen;V. Mathiesen
通讯作者：
R. Yusuf;M. Melaaen;V. Mathiesen
影响因子：
4.7
作者：
A. Cybulski;M. Dalen;J. Verkerk;P. V. D. Berg
通讯作者：
A. Cybulski;M. Dalen;J. Verkerk;P. V. D. Berg
DOI：
10.1016/j.ijheatmasstransfer.2010.05.047
发表时间：
2010-10
影响因子：
5.2
作者：
L. Armstrong;S. Gu;K. Luo
通讯作者：
L. Armstrong;S. Gu;K. Luo
影响因子：
3.8
作者：
J. Cao;G. Ahmadi
通讯作者：
J. Cao;G. Ahmadi
影响因子：
4.2
作者：
Yongrong Yang;J. Q. Yang;Wei Chen;S. Rong
通讯作者：
Yongrong Yang;J. Q. Yang;Wei Chen;S. Rong