Large-eddy simulations (LES) of temperature fluctuations in a mixing tee with/without a porous medium
Large-eddy simulations (LES) of temperature fluctuations in a mixing tee with/without a porous medium
复制标题
带/不带多孔介质的混合三通中温度波动的大涡模拟 (LES)
DOI:
10.1016/j.ijheatmasstransfer.2010.07.001
复制
发表时间:
2010-10
影响因子:
5.2
通讯作者:
Li, H.
中科院分区:
文献类型:
--
作者:
Lu, T.;Jiang, P. X.;Guo, Z. J.;Zhang, Y. W.;Li, H.
Temperature fluctuations in a mixing tee were simulated with and without a porous media in FLUENT using the LES turbulent flow model with the sub-grid scale (SGS) Smagorinsky–Lilly (SL) model with buoyancy. The normalized mean and fluctuating temperatures are used to describe the time-averaged temperatures and the time-averaged temperature fluctuation intensities. For the tee junction without the porous media, the predicted normalized mean temperature and temperature fluctuations compare well with previous experimental data. Comparison of the numerical results with the porous media with both experimental and numerical data without porous media shows that the porous media significantly reduces the temperature fluctuations. Moreover, analysis of the temperature fluctuations and the power spectrum densities (PSD) at the locations having the strongest temperature fluctuations in the tee junction shows that the porous media significantly reduces the thermal fatigue effects and can be useful in various structures such as tee junctions, elbows, piping systems.
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DOI:
10.1016/j.ijheatfluidflow.2006.10.005
发表时间:
2007-10
影响因子:
2.6
作者:
H. Chan;W. Huang;J. Leu;C. Lai
通讯作者:
H. Chan;W. Huang;J. Leu;C. Lai
影响因子:
1.2
作者:
Mitsuo Wakamatsu;H. Nei;K. Hashiguchi
通讯作者:
Mitsuo Wakamatsu;H. Nei;K. Hashiguchi
DOI:
10.5065/d67h1ggq
发表时间:
1966
期刊:
--
影响因子:
--
作者:
K. Lilly
通讯作者:
K. Lilly
影响因子:
5.2
作者:
M. Quintard;S. Whitaker
通讯作者:
M. Quintard;S. Whitaker
DOI:
10.1016/j.ijheatmasstransfer.2005.10.026
发表时间:
2006-05-01
影响因子:
5.2
作者:
Jiang, PX;Lu, XC
通讯作者:
Lu, XC