Study of fluid-to-fluid scaling for upward pipe flows of supercritical fluids using direct numerical simulation
Study of fluid-to-fluid scaling for upward pipe flows of supercritical fluids using direct numerical simulation
复制标题
使用直接数值模拟研究超临界流体向上管流的流体到流体结垢
DOI：
10.1016/j.ijheatmasstransfer.2022.122651
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发表时间：
2022
影响因子：
5.2
通讯作者：
He J
中科院分区：
文献类型：
--
作者：
He J
为了降低成本和技术难度，在超临界流体流动实验中广泛应用了流体-流体比例测量。在大多数情况下，已经开发并在文献中验证了不同的标度方案，这些标度方案使用一组表征超临界流体流动的热传递的无量纲参数组来表示。以前的验证大多基于实验数据、经验关联式和雷诺平均纳维斯托克斯(RANS)模拟。在本研究中，直接数值模拟(DNS)被用来评估Ambrosini和De Rosa[1]的尺度方案之一。对四种不同超临界流体的上行管流进行了数值模拟，并相应调整了边界条件。当采用Ambrosini和De Rosa[1]推荐的参数组和进口雷诺数(Re 0)时，所选流体之间的湍流和换热具有很好的相似性。当用入口Peclet数Pe 0代替Re 0时，相似性变弱。对超临界流体向上加热流动中实现相似的条件和决定湍流和换热的参数有了进一步的理解。
Fluid-to-fluid scaling is widely applied in experiments of supercritical fluid flows to reduce the cost and technical difficulties. Different scaling schemes, in most cases, formulated using a set of non-dimensional parameter groups that characterise the heat transfer of a supercritical fluid flow, have been developed and validated in the literature. Validations were previously mostly based on experimental data, empirical correlations and Reynolds-averaged Navier–Stokes (RANS) simulations. In the present study, direct numerical simulations (DNS) are used to assess one of the scaling schemes Ambrosini and De Rosa [1]. Simulations of upward pipe flows of four different supercritical fluids were carried out with their boundary conditions scaled accordingly. Excellent similarity in turbulence and heat transfer is achieved among the chosen fluids when the parameter group recommended by Ambrosini and De Rosa [1] together with the inlet Reynolds number (R e 0) is used. The similarity becomes weaker when R e 0 is replaced by the inlet Peclet number P e 0. Further understandings in terms of the conditions to achieve similarity and the parameters that determine the turbulence and heat transfer in upward heated flows of supercritical fluids are established.
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影响因子：
2.3
作者：
U. S. Tejaswini;D. N. Basu;M. Pandey
通讯作者：
U. S. Tejaswini;D. N. Basu;M. Pandey
影响因子：
3.7
作者：
J. He;R. Tian;P. Jiang;S. He
通讯作者：
J. He;R. Tian;P. Jiang;S. He
DOI：
10.1016/j.ijheatmasstransfer.2014.12.039
发表时间：
2015-04-01
影响因子：
5.2
作者：
Nemati, Hassan;Patel, Ashish;Pecnik, Rene
通讯作者：
Pecnik, Rene
DOI：
10.1115/icone14-89862
发表时间：
2008-08
期刊：
--
影响因子：
--
作者：
W. Ambrosini;M. Sharabi
通讯作者：
W. Ambrosini;M. Sharabi
传热和流体动力学相似原理在超临界压力下不同流体的应用
DOI：
--
发表时间：
2011
期刊：
影响因子：
--
作者：
W. Ambrosini;De Rosa Mattia
通讯作者：
De Rosa Mattia