臺灣博碩士論文加值系統

本文以水工實驗模擬渦漩具背景渦度且存在溫度效應影響下的行為表現，利用旋轉水槽底部架設具有溫度效應區的斜板模擬緯度效應及溫度來源，使渦漩通過此區域，分別以染料施放法定性觀察其路徑，以雷射水平切頁顯影法定量觀察其速度場，及液晶顯像技術(PIV/T)量測其垂直方向的速度及溫度場。
歸納自實驗結果，溫度效應對於渦漩路徑影響為冷渦漩較常溫渦漩偏北，而熱渦漩較常溫渦漩偏南。
另外，本實驗使用可隨溫度變化改變其反射波長的液晶感溫粒子(Thermochromic liquid crystal)為追蹤粒子，以水為工作流體，利用液晶顯像技術以全域且非侵入式的方式量測渦漩進入溫度效應區前、中、後三區域的速度溫度場，以觀察分析溫度效應對於渦漩垂直方向流場的影響。

The objective of this paper is to investigate the phenomenon of vortex under thermal effect and background vorticity, especially the path and intensity of vortex passing through hot/cold zone. The generations of vortices at relative locations or latitudes are carefully conducted by sinking methods. The vortex is moved from deep water to shallow water because of the inclined bottom plate with hot/cold zone. The vortex path is observed by dye-induced method qualitatively. Moreover, the velocity, vorticity, and temperature of the fluid field are obtained by Particle Tracking velocimtry (PTV) and Particle Image Velocimetry/ Thermometry (PIV/T) quantitatively.
By conclusion of series of experiments, the path of the cold vortex which passes through cold zone is northerner than that through ambient-temperature zone. Moreover, the path of the vortex passing through ambient-temperature zone is northerner than that through warm zone.

口試委員會審定書...................................... i
誌謝.................................................. ii
中文摘要.............................................. iii
英文摘要.............................................. iv
目錄.................................................. v
圖表目錄.............................................. vii
符號表................................................ x
第一章 緒論......................................... 1
1.1 全文概述....................................... 1
1.2 研究動機與目的................................. 2
1.3 文獻回顧....................................... 3
第二章 理論分析與實驗規劃........................... 6
2.1 理論分析....................................... 6
2.2 液晶顯像測溫技術概述........................... 9
2.3 粒子影像追跡法................................. 15
2.4 實驗規劃....................................... 16
第三章 實驗設備及實驗方法........................... 17
3.1 實驗設備........................................ 17
3.1.1 非慣性運動系統實驗設備...................... 17
3.1.1.1 旋轉平台............................... 17
3.1.1.2 旋轉水槽............................... 17
3.1.1.3 斜板................................... 18
3.1.1.4 渦漩產生機構........................... 18
3.1.2 溫度控制及感測裝置.......................... 19
3.1.2.1 溫度效應產生及溫度控制設備.............. 19
3.1.2.2 溫度感測器.............................. 19
3.1.3 流場顯影及影像擷取裝置...................... 20
3.1.3.1 光源.................................... 20
3.1.3.2 染料施放裝置............................ 20
3.1.3.3 流場顯影粒子............................ 20
3.1.3.4 影像擷取裝置............................ 21
3.1.3.5 工作平台................................ 21
3.2 實驗方法........................................ 22
3.2.1 染料施放法.................................. 22
3.2.2 液晶顯像技術................................ 22
3.2.3 雷射切頁顯影法.............................. 24
第四章 結果與討論................................... 25
4.1 渦漩行進路徑.................................... 25
4.2 水平速度場...................................... 27
4.3 液晶感溫粒子校正................................ 29
4.4 垂直速度及溫度場................................ 30
第五章 結論與未來展望............................... 32
5.1 結論............................................ 32
5.2 未來展望........................................ 32
參考文獻.............................................. 33
圖表.................................................. 38

[1] Al-Arabi, M. and El-Riedy, M. K., Natural Convection Heat Transfer from Isothermal Horizontal Plates of Different Shapes, Journal of Heat Mass Transfer, v19 (1976), pp. 1399—1404
[2] Anderson, M. R., Hysteresis in Liquid Crystal Thermography, Journal of Heat Transfer, v126 (2004), pp. 339—346
[3] Boubnov, B. M. and G. J. F. von Heijst, Experiments on Convection from a Horizontal Plate with annd without Background Rotation, Experiments in Fluids, v16 (1994), pp.155—164
[4] Boubnov, B. M. and Golitsyn, G. S., Convection in Rotating Fluids, 1995
[5] Capart, H., Young, D. L. and Zech, Y., Voronoï Imaging Methods for the Measurement of Granular Flows, Experiments in Fluids, v32 (2002), pp.121—135
[6] Ciofalo, M., Signorino, M. and Simiano, M., Tomographic Particle-image Velocimetry and Thermography in Rayleigh-Benard Convection Using Suspended Thermochromic Liquid Crystals and Digital Image Processing, Experiments in Fluids, v34 (2003), pp.156—172
[7] Dabiri, D. and Gharib, M., Digital Particle Image Thermometry: The Method and Implementation, Experiments in Fluids, v11 (1991), pp.77—86
[8] Dabiri, D. and Gharib, M., The Effects of Forced Boundary Conditions on Flow Within a Cubic Cavity Using Digital Particle Image Thermometry and Velicimetry (DPITV), Experimental TherMal and Fluid Science, v13 (1996), pp. 349—363
[9] Edo, Y., Obi, S. and Masuda, S., Heat Transfer Experiments in Rotating Boundary Layer Flow, International Journal of Heat and Fluid Flow, v21 (2000), pp. 684—692
[10] Emanuel, K., Tropical Cyclones, Annular Review Earth Science, v31 (2003), pp.75—104
[11] Farina, D. J., Hacker, J. M., Moffat, R. J. and Eaton, J. K., Illuminant Invariant Calibration of Thermochromic Liquid Crystals, Experimental Thermal and Fluid Science, v9 (1994), pp. 1—12
[12] Fujisawa, N. and Funatani, S., Simultaneous Measurement of Temperature and Velocity in a Turbulent Thermal Convection by the Extended Range Scanning Liquid Crystal Visualization Technique, Experiments in Fluids, v29 (2000), pp. 158—165
[13] Funatani, S., Fujisawa, N. and Matsuura, T., Multipoint Calibration Technique of Liquid Crystal Thermometry and its Application to Three-dimensional Temperature Measurement of Thermal Convection, Journal of Flow Visualization and Image Processing, v7 (2000), pp. 353—366
[14] Funatani, S. and Fujisawa, N., Simultaneous Measurement of Temperature and Three Velocity Components in Planar Cross Section by Liquid-Crystal Thermometry Combined with Stereoscopic Particle Image Velocimetry, Measurement Science and Technology,v13 (2002), pp. 1197—1205
[15] Fujisawa, N. and Hashizume, Y., An Uncertainty Analysis of Temperature and Velocity Measured by a Liquid Crystal Visualization Techique, Measurement Science and Technology,v12 (2001), pp. 1235—1242
[16] Gonzalez, R. C. and Woods, R. E., Digital Image Processing, 2002
[17] Günther, A. and Ph. Rudolf von Rohr, Influence of the Optical Configuration on Temperature Measurements with Fluid-Dispersed TLCs, Experiments in Fluids, v32 (2002), pp. 533—541
[18] Hay, J. L. and Hollingsworth, D. K., A Comparison of Trichromic Systems for Use in the Calibration of Polymer-Dispersed Thermochromic Liquid Crystals, Experimental Thermal and Fluid Sciece, v12 (1996), pp. 1—12
[19] Hay, J. L. and Hollingsworth, D. K., Calibration of Micro-Encapsulated Liquid Crystals Using Hue Angle and a Dimensionless Temperature, Experimental Thermal and Fluid Science,v18 (1998), pp. 251—257
[20] Heiland, H. G., Wozniak, G. and Wozniak, K., Flow and Temperature Field Measurements of Thermal Convection in a Small Gap Using Liquid Crystals, Heat Mass Transfer, 2006
[21] Hopfinger, E. J. and G. J. F. von Heijst, Vortices in Rotating Fluid
[22] Ireland, P. T. and Jones, T.V., The Response Time of a Surface Thermometer Employing Encapsulated Thermochromic Liquid Crystals, J. Phys. E: Sci. Instrum, v20 (1987), pp. 1195—1199
[23] Ireland, P. T. and Jones, T.V., Liquid Crystal Measurements of Heat Transfer and Surface Shear Stress, Measurement Science and Technology,v11 (2000), pp.969—986
[24] Kowalewski, T. A., Cybulski, A. and Rebow, M., Particle Image Velocimetry and Thermometry in Freezing Water, 8th International Symposium on Flow Visualization, 1998
[25] Kowalewski, T. A., Application of Liquid Crystal Tracers for Full Field Temperature and Velocity Measurements, Proceedings of the 2001 International Symposium on Environmental Hydraulic
[26] Lin, I. I., Liu, W. T., Wu, C. C., Chiang, J. C. H. and Sui, C. H., Satellite Observations of Modulation of Surface Winds by Typhoon-induced Upper Ocean Cooling, Geophysical Research Letters, v30 (2003), No.3
[27] Matsuda, H. , Ikeda, K. , Nakata, Y. , Otomo, F. , Suga, T. and Fukuyama, Y., A New Thermochromic Liquid Crystal Temperature Identification Technique Using Color Space Interpolation and its Application to Film Cooling effectiveness measurements, Journal of Flow Visualizaion and Image Processing,v7 (2000), pp. 103—121
[28] Moffat, R. J., Some Experimental Methods for Heat Transfer Studies, Experimental Thermal and Fluid Science, v3 (1990), pp. 14—32
[29] Nozaki, T., Mochizuki, T., Kaji, N. and Mori, Y. H., Application of Liquid-Crystal Thermometry to Drop Temperature Measurements, Experiments in Fluids, v18 (1995), pp. 137—144
[30] Park, H. G., Dabiri, D. and Gharib, M., Digital Particle Image Velocimetry/Thermometry and Application to the Wake of a Heated Cylinder, Expertiments in Fluids, v30 (2001), pp. 327—338
[31] Praisner, T. J., Sabatino, D. R. and Smith, C. R., Simultaneous Combined Liquid Crystal Surface Heat Transfer and PIV Flow-field Measurements, Experiments in Fluids, v30 (2001) , pp. 1—10
[32] Roisin, C., Introduction to Geophysical Fluid Dynamics, 1994
[33] Sabatino, D. R., Praisner, T. J. and Smith, C. R., A High-accuracy Calibration Technique for Thermochromic Liquid Crystal Temperature Measurements, Experiments in Fluids,v28 (2000), pp. 497—505
[34] Shay, L. K., Goni, G. J. and Black, P. G., Effects of a Warm Oceanic Feature on Hurricane Opal, Monthly Weather Review, v128(2000), pp. 1366—1383.
[35] Smith, C. R. , Sabatino, D. R. and Praisner, T. J., Temperature Sensing with Thermochromic Liquid Crystals, Experiments in Fluids, v30 (2001), pp. 190—201
[36] Sriver, R. L. and Huber, M., Observation Evidence for an Ocean Heat Pump Induced by Tropical Cyclones, Nature, v447(2007), pp. 577—580
[37] Stasiek, J. A. and Kowalewski, T. A., Thermochromic Liquid Crystals Applied for Heat Transfer Research, Opto-Electronics Review, v10 (2002), pp. 1—10
[38] Wisniewski, T. S., Kowalewski, T. A. and Rebow, M., Infrared and Liquid Crystal Thermography in Natural Convection, 8th International Symposium on Flow Visualization, 1998
[39] 朱炳昇，使用液晶顯像技術探討氣泡熱傳效應，國立海洋大學碩士論文(1999)
[40] 范振德，受科氏力影響下渦漩與熱邊界層之交互作用，國立臺灣大學碩士論文(2005)
[41] 松本正一，角田市良，液晶之基礎與應用，國立編譯館(1996)
[42] 高國傑，β平面下單一渦漩、地形與駛流間交互作用之初步研究，國立臺灣大
學碩士論文(2001)
[43] 陳弘正，正壓氣旋與地形交互作用之水工實驗與數值模擬，國立臺灣大學博
士論文(2001)
[44] 張瑞旻，β平面下單一渦漩、地形與駛流間交互作用之實驗研究，國立臺灣大學碩士論文(2002)
[45] 黃世霖，運用粒子追跡測速法探討旋轉水槽中單一渦漩演變之流場結構，國
立臺灣大學碩士論文(2003)
[46] 黃一仁，利用液晶顯像技術量測距溫度差渦環流場之溫度與速度，國立臺
灣大學碩士論文(2006)
[47] 顏文成，科氏效應下單一渦漩與二維圓柱之交互作用，國立臺灣大學碩士論文(1999)