Heat and Mass Transfer Characteristics of a Temperature and Concentration Combined Convection Due to a Vertical Ice Plate Melting

M. Sugawara; Thomas F. Irvine; M. Tago

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Heat and Mass Transfer Characteristics of a Temperature and Concentration Combined Convection Due to a Vertical Ice Plate Melting

机译：垂直冰板融化引起的温度-浓度复合对流的传热和传质特性

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The melting of a vertical ice plate into a calcium chloride aqueous solution (CaCl_2-H_2O mixture) in a rectangular cavity is considered numerically and experimentally. The ice plate melts spontaneously with decreasing temperature at the melting front even when there exists no initial temperature difference between ice and liquid. Visual observations in the liquid reveal a complicated natural convection affected by the concentration/ temperature gradients which appear near the melting front. Melt water gradually contaminates an upper region in the initially homogeneous liquid, that causes the melting rate to decrease. Aspect ratio H/W of the liquid region does not affect the melting rate within an early melting stage, however large aspect ratio causes the melting rate to decrease during the melting process. A two-dimensional numerical model reflecting actual ice melting conditions predicts, approximately, the transient melting mass, and the transient temperature/concentration decrease in the melting system. It is seen that the Sherwood number at the melting front is larger when compared with previous results concerning double diffusive convection. The Nusselt number at the melting front is quantitatively considered experimentally and analytically.

机译：从数值和实验上考虑了垂直冰板在矩形腔中融化为氯化钙水溶液（CaCl_2-H_2O混合物）的过程。即使在冰和液体之间不存在初始温度差的情况下，冰板也会随着融化前沿温度的降低而自发融化。液体中的肉眼观察表明，复杂的自然对流受熔融前沿附近出现的浓度/温度梯度的影响。熔化的水逐渐污染了最初均质的液体中的上部区域，这导致熔化速率降低。液体区域的长宽比H / W不影响熔化初期的熔化速度，但是大的长宽比会使熔化速度在熔化过程中降低。反映实际冰融化条件的二维数值模型可以大致预测瞬态融化质量以及融化系统中瞬态温度/浓度的降低。可以看出，与先前关于双扩散对流的结果相比，在熔化前沿的舍伍德数更大。通过实验和分析定量地考虑了熔融前沿的努塞尔数。

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来源
《Journal of Heat Transfer》 |2003年第1期|p.39-47|共9页
作者
M. Sugawara; Thomas F. Irvine; M. Tago;
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作者单位

Department of Mechanical Engineering, Faculty of Engineering and Resource Science, Akita University, Akita 010-8502, Japan;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类热力工程、热机;
关键词
double diffusion; experimental; heat transfer; melting; natural convection; numerical methods;

机译：双重扩散实验传播热量;融化;自然对流;数值方法;

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专利

1. A numerical study of free convection heat and mass transfer in a Rivlin-Ericksen viscoelastic flow past an impulsively started vertical plate with variable temperature and concentration [J] . Rajneesh Kumar, Ibrahim A. Abbas, Veena Sharma International Journal of Heat and Fluid Flow . 2013,第deca期

机译：在Rivlin-Ericksen粘弹性流中经过温度和浓度可变的脉冲启动垂直平板的自由对流传热和传质的数值研究
2. Coupled Heat and Mass Transfer By MHD Free Convection Flow along a Vertical Plate with Streamwise Temperature and Species Concentration Variations [J] . Ali J. Chamkha, S.M.M. EL-Kabeir, A.M. Rashad Heat Transfer Asian Research . 2013,第2期

机译：沿垂直板的MHD自由对流通过传热和传质耦合，流向温度和物种浓度变化
3. Natural convection heat and mass transfer from a vertical flat plate with variable wall temperature and concentration to power-law fluids with yield stress in a porous medium [J] . Rami Y.Jumah, Arun S.Mujumdar Chemical Engineering Communications . 2001,第1期

机译：自然对流热和传质从壁温和浓度可变的垂直平板转移到多孔介质中具有屈服应力的幂律流体
4. Effect of inclined angle of a temperature and concentration combined convection due to an ice plate melting [C] . Masahiro Sugawara, Takuma Ishikura, Makoto Tago, 日本伝熱シンポジウム . 2001

机译：冰板熔化引起的温度和浓度组合对流倾斜角度的影响
5. COMBINED HEAT AND MASS TRANSFER NATURAL CONVECTION BETWEEN PARALLEL PLATES (LAMINAR). [D] . NELSON, DOUGLAS J. 1986

机译：平行板（层流板）之间的传热和传热自然对流组合。
6. Combined Effect of Buoyancy Force and Navier Slip on MHD Flow of a Nanofluid over a Convectively Heated Vertical Porous Plate [O] . Winifred Nduku Mutuku-Njane, Oluwole Daniel Makinde 2013

机译：浮力和Navier滑移对对流加热垂直多孔板上纳米流体MHD流动的综合影响
7. Discussion: “Force Convection Heat Transfer at an Inclined and Yawed Square Plate—Application to Solar Collectors” (Sparrow, E. M., and Tien, K. K., 1977, ASME J. Heat Transfer, 99, pp. 507–512) and “Local Heat Transfer and Fluid Flow Characteristics for Airflow Oblique or Normal to Square Plate” (Tien, K. K., and Sparrow, E. M., 1979, Internation Journal of Heat and Mass Transfer, 22, pp. 349–359) and “Effect of Finite Width on Heat Transfer and Fluid Flow about an Inclined Rectangular Plate” (Sparrow, E. M., Ramsey, J. W., and Mass, E. A., 1979, ASME J. Heat Transfer, 101, pp. 199–204) [O] . B. Nimmo, S. Zubair 1981

机译：讨论：“在倾斜和偏航的方形板应用于太阳能收集器的强制对流传热”（Sparrow，EM和Tien，KK，1977，Asme J.传热，99，PP。507-512）和“局部热量用于气流倾斜或正常板的转移和流体流动特性“（Tien，KK和Sparrow，EM，1979，热量和传质杂志，22，pp.349-359）和”有限宽度对热量的影响关于倾斜矩形板的转移和流体流动“（Sparrow，EM，Ramsey，JW和Mass，EA，1979，ASME J.传热，101，PP。199-204）
8. Interferometer Study of the Effects of Mass Addition by Transpiration on Heat Transfer from a Vertical Plate in Free Convection [R] . Schneider, D. A. 1964

机译：蒸发质量增加对自由对流中垂直板传热影响的干涉仪研究

Heat and Mass Transfer Characteristics of a Temperature and Concentration Combined Convection Due to a Vertical Ice Plate Melting

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