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ARTICLE J. Cent. South Univ. (2019) 26: 2077-2087 DOI: https://doi.org/10.1007/s11771-019-4155-y Parametric study of natural convection over horizontal annular finned tube H. NEMATI1, M... Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract: Natural convection heat transfer from annular finned tubes was studied numerically. Effects of fin spacing, temperature......
Phase and microstructure selection in directionally solidified peritectic alloys with convection SU Yan-qing(苏彦庆), LI Xin-zhong(李新中), GUO Jing-jie(郭景杰), WU Shi-ping(吴士平),DING Hong-sheng(丁宏生), FU... to investigate the convection effects on phase and microstructure selection in directionally solidified peritectic alloy. Due to the convection effects, the steady-state compositions of one phase......
Phase-field-lattice Boltzmann simulation of dendrite growth under natural convection in multicomponent superalloy solidificationCong Yang,Qing-Yan Xu,Bai-Cheng LiuKey Laboratory for Advanced...,and the natural convection has been confirmed to affect the microsegregation pattern and the dendrite growth velocity.In the directional solidification simulations,two typical temperature gradients were applied......
temperature-and carbon concentration-dependent material properties was developed to describe the scrap melting behavior and carbon diffusion under natural convection. Simulated results agreed reasonably... layer with significant concentration difference at 1573 K increased from 130 μm at 5 s to 140 μm at 60 s. The maximum velocity caused by natural convection decreased from 0.029 m·s-1 at 5 s to 0.009 m......
, the temperature of the HAC inner surface is raised but remains lower than the lamp surface temperature. Air inside the HAC is completely enclosed without inlet or outlet; therefore, natural convection is the only... transfer from the lamp, natural convection heat transfer from the inner surface and forced convection heat transfer to outside air. Due to the different velocities around the HAC, the forced convection......
ARTICLE J. Cent. South Univ. (2019) 26: 1077-1088 DOI: https://doi.org/10.1007/s11771-019-4072-0 Three-dimensional analysis of natural convection in nanofluid-filled parallelogrammic enclosure... the three-dimension natural convection in a parallelogrammic top side opened cavity filled nanofluid with partially heated square at the bottom side. Results are obtained for different governing......
to understand the mechanism of smoldering of polyurethane foam in different smoke exhaust conditions, smoldering experiments were conducted with vertically-oriented polyurethane foam with natural convection..., and smoldering combustion residual carbon reduces. Key words: smoke exhaust conditions; smoldering; polyurethane foam; natural convection 阴燃是指材料主要依靠固体与氧气之间的异相表面反应所放出的热量维持自身传播的燃烧反应[1].由于阴燃的燃烧温度较低,传播速度较慢......
J. Cent. South Univ. (2012) 19: 733-739 DOI: 10.1007/s11771-012-1065-7 Natural ventilation performance of single room building with fluctuating wind speed and thermal mass TAN Gang Department of Civil and Architectural Engineering, University of Wyoming, Laramie, Wyoming, USA ? Central South University Press and Springer-Verlag Berlin Heidelberg 2012 Abstract: Natural ventilation is driven......
than 5 min, and the heat transfer in the evaporating adsorbate process called pool boiling belongs to the natural convection. And the performance of the heat transfer is very poor, with the maximum of coefficient of heat transfer 403.4 W/(m2·K). Key words: adsorption refrigeration; adsorber; plate fin tube; coefficient of heat transfer; natural convection 随着工业的发展和生活质量的提高,能源问题越来越被各个国家所重视,能源短缺就是其中重......
quadrupole field; magnetic force 1 Introduction Natural convection in the presence of magnetic field has become a research focus in recent decades because it has a wide range of engineering applications like... is different for various configurations of the applied magnetic field. GHASEMI et al [1] numerically studied the natural convection under a horizontal magnetic field and found that the heat transfer......
