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第6期 张艳等:有限厚度的Marangoni对流边界层问题的解析近似解 ,803 1.2 参考文献 1.0 。P-2 [1]Napolitano L G.Surface and buoyancy driven free convection P6 0.8 Acta Astronaut.1982,9:199 -P=10 [2]Napolitano L G.Golia C.Coupled Marangoni boundary layers. 0.6 Acta Astronaut,1981,8:417 0.4 [3]Arafune K.Hirata A.Thermal and solutal Marangoni convection 02 in In Ga Sb system.J Cryst Growth,1997,197:811 [4]Arafune K.Hirata A.Investigation of thermal Marangoni convee- tion in low and high Prandtl number fluids.I Chem Eng Ipn. 04 1999,32:104 [5]Slavtchev S G.Dubovik K G.Thermocapillary convection in a 图8在第2种边界条件下当M=100时量纲1的温度变化 rectangular cavity at minimum of surface tension.Theor Appl Fig-8 Change in dimensionless temperature at M=100 under the Mech,1992,23:85 2nd boundary condition [6]Al-Mudhaf A.Chamkha A J.Similarity solutions for MHD ther- mosolutal Marangoni convection over a flat surface in the presence 4结论 of heat generation or absorption effects.Heat Mass Transfer. 2005,42.112 (1)当M非常小时,没有速度边界层产生;而 [7]Simanovskii I.Nonlinear Marangoni convection with the inclined 当M足够大时,会产生较薄的速度边界层,自由表 temperature gradient in multilayer systems.IPhys Rev E.2006. 面处的速度F(1)随着M的增大而减小. 73.066310 (2)第1种能量边界条件下,当Pr固定,M较 [8]Zheng L C.Sheng X Y.Zhang X X.Analytical approximate for 小时,()没有温度边界层产生,当M足够大时, Marangoni convection boundary layer equations.Acta Phys Sin, 2006,55(10):5298 会产生温度边界层;当M固定,Pr较小时,()没 (郑连存,盛晓艳,张欣欣.一类Marangoni对流边界层方程 有温度边界层产生,而当P比较大时有较薄的温 的近似解析解.物理学报,2006,55(10):5298) 度边界层在自由表面附近产生, [9]Zheng L C.Zhang XX,Gao Y T.Analytical solution for (③)第2种能量边界条件下,当M或Pr较小 Marangoni convection over a vapor-liquid surface due to an im- 时,液体中的温度1()和()的变化几乎都是线 posed temperature gradient.Math Compu Modelling.2008. 48:1787 性的,尤其是较下层的液体中;而当M或P,足够大 [10]Zheng L C.Chen X H.Zhang XX.et al.An approximately 时,()和()在自由表面处产生温度边界层 analytical solution for the Marangoni convection in an In-GaSb 而且P对温度边界层的产生较M的影响更为显著. system.Chin Phys Lett.2004,21:1983图8 在第2种边界条件下当 M=100时量纲1的温度变化 Fig.8 Change in dimensionless temperature at M=100under the 2nd boundary condition 4 结论 (1) 当 M 非常小时‚没有速度边界层产生;而 当 M 足够大时‚会产生较薄的速度边界层.自由表 面处的速度 F′(1)随着 M 的增大而减小. (2) 第1种能量边界条件下‚当 Pr 固定‚M 较 小时‚θ(η)没有温度边界层产生‚当 M 足够大时‚ 会产生温度边界层;当 M 固定‚Pr 较小时‚θ(η)没 有温度边界层产生‚而当 Pr 比较大时有较薄的温 度边界层在自由表面附近产生. (3) 第2种能量边界条件下‚当 M 或 Pr 较小 时‚液体中的温度θ1(η)和θ(η)的变化几乎都是线 性的‚尤其是较下层的液体中;而当 M 或Pr 足够大 时‚θ1(η)和 θ(η)在自由表面处产生温度边界层. 而且 Pr 对温度边界层的产生较 M 的影响更为显著. 参 考 文 献 [1] Napolitano L G.Surface and buoyancy driven free convection. Acta Astronaut‚1982‚9:199 [2] Napolitano L G‚Golia C.Coupled Marangoni boundary layers. Acta Astronaut‚1981‚8:417 [3] Arafune K‚Hirata A.Thermal and solutal Marangoni convection in In-Ga-Sb system.J Cryst Growth‚1997‚197:811 [4] Arafune K‚Hirata A.Investigation of thermal Marangoni convec￾tion in low and high Prandtl number fluids.J Chem Eng Jpn‚ 1999‚32:104 [5] Slavtchev S G‚Dubovik K G.Thermocapillary convection in a rectangular cavity at minimum of surface tension. Theor Appl Mech‚1992‚23:85 [6] A-l Mudhaf A‚Chamkha A J.Similarity solutions for MHD ther￾mosolutal Marangoni convection over a flat surface in the presence of heat generation or absorption effects.J Heat Mass T ransfer‚ 2005‚42:112 [7] Simanovskii I.Nonlinear Marangoni convection with the inclined temperature gradient in multilayer systems.J Phys Rev E‚2006‚ 73:066310 [8] Zheng L C‚Sheng X Y‚Zhang X X.Analytical approximate for Marangoni convection boundary layer equations.Acta Phys Sin‚ 2006‚55(10):5298 (郑连存‚盛晓艳‚张欣欣.一类 Marangoni 对流边界层方程 的近似解析解.物理学报‚2006‚55(10):5298) [9] Zheng L C‚Zhang X X‚Gao Y T.Analytical solution for Marangoni convection over a vapor-liquid surface due to an im￾posed temperature gradient. Math Comput Modelling‚2008‚ 48:1787 [10] Zheng L C‚Chen X H‚Zhang X X‚et al.An approximately analytical solution for the Marangoni convection in an In-Ga-Sb system.Chin Phys Lett‚2004‚21:1983 第6期 张 艳等: 有限厚度的 Marangoni 对流边界层问题的解析近似解 ·803·
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