臺灣博碩士論文加值系統

本論文的目的是於大型空蝕水槽建立一套對船模三維船艉名義跡流場量測系統。測量儀器將採用五孔皮托管，並利用之前於中型空蝕水槽建立的五孔皮托管校正表，由量測得之壓力推算為流速得到船艉流場。
艉跡流量測實驗於海大大型空蝕水槽執行，將對兩艘船模進行測量，得其三維船艉名義跡流場，其一為8.15米長的貨櫃船模，量測的結果將會與漢堡船模實驗室拖曳水槽的量測結果作比較。其二為5.1米長的海洋研究船模，並對測量結果作傅利葉分析。
此對此貨櫃船模於本校大型空蝕水槽與漢堡船模實驗室量測結果，發現於海大量測8米以上的船模確實會有槽壁效應存在。

The purpose of the present study is to establish a three-dimensional nominal wake measurement system at the large-cavitations tunnel by using a set of five-holes Pitot tubes. The calibration tables of pitot tubes which had been previously built at the medium-cavitations tunnel are used to transform the measured pressure into velocity.
The nominal wake experiment was performed at National Taiwan Ocean University’s (NTOU) Large-Cavitations Tunnel. The nominal wakes of two ship model were measured in the tunnel. One is a 8.15m long container ship model. The nominal wake obtained was compared with that measured in the HSVA towing tank. The other is a 5.1m long ocean research ship model.
Comparing the results of the container ship model measured at the NTOU tunnel and that measured at the HSVA towing tank, it is found that the wall effect at the Large-Cavitations Tunnel exists when the length of the ship model is larger than 8 meters.

摘要 i
英文摘要 ii
目錄 iii
圖目錄 iv
表目錄 vi
第一章 緒論 1
第二章 實驗設備設計與安裝 5
第三章 實驗結果與討論 13
第四章 結論與建議 56
參考文獻 57
附錄 A 58
附錄 B 61

參考文獻

[1] Foreman, J. W. Jr., George, E. W., Felton, J. L., Lewis, R.D.,Thorton, J. R. and Wason, H. J. "Fluid Flow Measurement with a Laser Doppler Velocity", IEEE J. of Quantum Electron, (1966)
[2] Adrain, R. J. “Particle-imaging techniques for experimental fluid mechanics”, Ann. Rev. Fluid Mech., (1991) Vol.23, pp.261-304.
[3] 林聰得, “應用質點影像測速儀（PIV）對艉跡流場之量測研究”, 中正理工學院造船工程研究所碩士論文, (1998)
[4] P.C.Pien , “Five Hole Spherical Pitot Tube”DTMB Report 1229 (1958)
[5] A. Robert Porro “Pressure Probe Designs for Dynamic Pressure Measurements in a Supersonic Flow Field” NASA/TM—2001-211096
[6] L.Gui , J.Longo,F.Stern “Towing tank PIV measurement system, data and uncertainty assessment for DTMB Model 5512” Experiments in Fluids 31(2001) pp336-346
[7] 張佳騰 “五孔皮托管之校正與貨櫃船激振力量測”,國立台灣海洋大學系統工程暨造船學系碩士論文,(2006)