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研究生:洪建郎
研究生(外文):Chien-Lang Hung
論文名稱:軸對稱流中微粒慣性機制之研究
論文名稱(外文):A Study of Inertial Transport of Airborne Particles at an Axially Symmetrical Flow
指導教授:蔡瑞益蔡瑞益引用關係
指導教授(外文):Rueyyih Tsai
學位類別:碩士
校院名稱:中原大學
系所名稱:機械工程學系
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2000
畢業學年度:88
語文別:中文
論文頁數:66
中文關鍵詞:氣膠微粒慣性效應氣膠微粒在軸對稱流之影響
外文關鍵詞:aerosol particlesaxisymmetric waferinertialdeposition
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本文探討氣膠微粒在受熱效應和慣性效應時,對於氣膠微粒在軸對稱流之附著率與附著速度的影響。這兩種傳輸機制的交互作用,具有相當重要性,而控制慣性效果的無因次參數是史托斯數(stokes number)。本文是以二維軸對稱停滯流模擬軸對稱平板之動量、能量和濃度場方程式,並以相似法來分析動量方程式、能量方程式以及濃度場方程式。在濃度場中,利用外部解(outer solution)求解出濃度場分佈。再以濃度場求出在熱泳及慣性現象的影響下,軸對稱的微附著率及附著速度。
本文所提出,是針對軸對稱流機制在有慣性及無慣性效應影響下之比較來作探討。我們發現微粒粒徑較大時有較大的慣性作用力,因而影響微粒之附著速度。

The article discusses that aerosol particles responded by thermophoresis and inertia and it affected to aerosol particles on deposition rate and deposition velocity of axisymmetric wafer. When the interaction between these two transport mechanisms is expect to be most significant. The governing dimensionless parameter controlling inertial effect is found to be stokes number. The flow are modeled as a two dimension stagnation flow. The governing equations include mass, momentum, energy and mass species conservation. Similar method is used to solve these equations and obtain the distributions of velocity, temperature and concentration. The Schmidt number is studied which depended on particles. It can overleap the second order section and use the outer solution from the concentration equation, which is a second-order singular perturbation equation to solve the distribution of concentration. It can solve the aerosol particle deposition rate and velocity of axisymmetric wafer the affection of the thermophoresis and inertia.
The purpose of this dissertation is to compare the transport mechanism with inertia affect or not at axially symmetrical flow. The particles’ deposition velocity can be effect, it is found that larger particles have larger inertial force.

中文摘要Ⅰ
ABSTRACTⅢ
誌謝Ⅳ
目錄Ⅴ
圖目錄Ⅶ
表目錄Ⅹ
符號說明ⅩⅡ
第一章、 導論
1-1、前言1
1-2、研究動機2
1-3、本文架構3
1-4、文獻回顧3
第二章、物理模型與相似方程式之建立6
2-1、問題描述.6
2-2、基本假設.6
2-3、軸對稱平板停滯流7
2-3-1、統御方程式.7
2-3-2、邊界條件.11
2-3-3、微粒附著率的計算12
第三章、計算方法.16
3-1、軸對稱平板.16
第四章、結果與討論.21
4-1、 、StRer1/2和Vd計算21
第五章、結論與建議.63
參考文獻.64
簡歷66

1. A. F. Mills, X. Hang, and F. Ayazi,Int. J. Heat Mass Transfer, Vol. 27, p.1110(1984).
2. G. K. Batchelor and C.Shen, “Thermophoretic Deposition of Particles in Gas Flowing over ColdSurfaces”, J. Colloid and Interface Sci., Vol 107, p.21(1985).
3. Ye, Y., D. Y.H.,Pui,B.Y.H.Liu.S.Opiolka, S.Blumhorst and H.Fissan, J. Aerosol Sci.,Vol.22,pp.63-72,(1991).
4. C. Shen, “ Thermophoretic Deposition of Particles onto Cold Surfaces of Bodies in Two-Dimensional and Axisymmetric Flows”,J.Colloid and Interface Sci.,Vol.127,p.104(1989).
5. R. J. Han, O. R. Moss and B. A. Wong, J. Aerosol Sci., Vol.27, pp.235-247,(1996).
6. R. Tsai, Y. P. Chang and T. Y. Lin, “Combined Effects of Thermophoresis and Electrophoresis on Particle Deposition onto a Wafer,” J.Aerosol Sci., Vol.29, (1998).
7. C. Cho, J. Hwang and M. Choi, “Deposition of Polydisperse Particles in a Falkner-Skan Wedge Flow”, J. Aerosol Sci., Vol.27, pp.249-261, (1996).
8. W. M. Kays and M. E. Crawford,Convective Heat and Mass Transfer, 3rd ed. , p.165, McGraw-Hill,New York(1993).
9. F. M. White, Viscous Fluid Flow, 2nd ed., Chap. 4,McGraw-Hill, New York(1991).
10. F. Stratmann, H. Fissan and T. W. Peterson, J Envir.Sci., pp.39-41(1987).
11. Athansios G. Konstandopoulos and Daniel E. Rosner, Int.J.Heat Mass Transfer. Vol38. No. 12.pp. 2305-2315, (1995).
12. Athansios G. Konstandopoulos and Daniel E. Rosner, Int.J.Heat Mass Transfer. Vol38.No.12.pp. 2317-2327, (1995).
13. H. M. Park and D. E. Rosner, Chemical Engineering Science, Vol.44, No.10, pp.2233 -2244, (1989).
14. J. Mora and D. E. Rosner J. Fluid Mech. (1982), vol.125, pp.379-395.

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