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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/59644完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 郭振華 | |
| dc.contributor.author | Jia-En Chang | en |
| dc.contributor.author | 張佳恩 | zh_TW |
| dc.date.accessioned | 2021-06-16T09:31:18Z | - |
| dc.date.available | 2020-02-17 | |
| dc.date.copyright | 2017-02-17 | |
| dc.date.issued | 2017 | |
| dc.date.submitted | 2017-02-15 | |
| dc.identifier.citation | [1] M. Sfakiotakis, D. M. Lane, and J. B. C. Davies, 'Review of fish swimming modes for aquatic locomotion,' IEEE Journal of oceanic engineering, vol. 24, pp. 237-252, 1999.
[2] C. M. Breder, 'The locomotion of fishes,' 1926. [3] T. W. Sheu and Y. Chen, 'Numerical study of flow field induced by a locomotive fish in the moving meshes,' International journal for numerical methods in engineering, vol. 69, pp. 2247-2263, 2007. [4] T. Takagi, R. Kawabe, H. Yoshino, and Y. Naito, 'Functional morphology of the flounder allows stable and efficient gliding: an integrated analysis of swimming behaviour,' Aquatic Biology, vol. 9, pp. 149-153, 2010. [5] M. A. MacIver, E. Fontaine, and J. W. Burdick, 'Designing future underwater vehicles: principles and mechanisms of the weakly electric fish,' IEEE Journal of Oceanic Engineering, vol. 29, pp. 651-659, 2004. [6] B. N. Nowroozi, J. A. Strother, J. M. Horton, A. P. Summers, and E. L. Brainerd, 'Whole-body lift and ground effect during pectoral fin locomotion in the northern spearnose poacher (Agonopsis vulsa),' Zoology, vol. 112, pp. 393-402, 2009. [7] P. W. Webb, 'Kinematics of plaice, Pleuronectes platessa, and cod, Gadus morhua, swimming near the bottom,' Journal of Experimental Biology, vol. 205, pp. 2125-2134, 2002. [8] D. B. Quinn, G. V. Lauder, and A. J. Smits, 'Flexible propulsors in ground effect,' Bioinspiration & biomimetics, vol. 9, p. 036008, 2014. [9] J.-Y. Cheng, L.-X. Zhuang, and B.-G. Tong, 'Analysis of swimming three-dimensional waving plates,' Journal of Fluid Mechanics, vol. 232, pp. 341-355, 1991. [10] H. Kagemoto, M. Wolfgang, D. Yue, and M. Triantafyllou, 'Force and power estimation in fish-like locomotion using a vortex-lattice method,' Journal of fluids engineering, vol. 122, pp. 239-253, 2000. [11] C. E. Lan, 'A quasi-vortex-lattice method in thin wing theory,' Journal of Aircraft, vol. 11, pp. 518-527, 1974. [12] Q.-j. Qian and D.-j. Sun, 'Numerical method for optimum motion of undulatory swimming plate in fluid flow,' Applied Mathematics and Mechanics, vol. 32, pp. 339-348, 2011. [13] T. Y.-T. Wu, 'Swimming of a waving plate,' Journal of Fluid Mechanics, vol. 10, pp. 321-344, 1961. [14] 王福軍, '計算流體動力學分析-CFD 軟件原理與應用,' ed: 北京: 清華大學出版社, 2004. [15] C. Hirt and B. Nichols, 'Fundamentals of the KRAKEN Code,' Report ucir-760 Lawrence Livermore National Laboratory, 1974. [16] B. E. Launder and D. B. Spalding, 'Lectures in mathematical models of turbulence,' 1972. [17] L. Landweber and M. Gertler, 'Mathematical formulation of bodies of revolution,' DTIC Document1950. [18] C. Coulliette and A. Plotkin, 'Aerofoil ground effect revisited,' Aeronautical Journal, vol. 100, pp. 65-74, 1996. [19] C. Eloy and L. Schouveiler, 'Optimisation of two-dimensional undulatory swimming at high Reynolds number,' International Journal of Non-Linear Mechanics, vol. 46, pp. 568-576, 2011. [20] Y. C. Fung, An introduction to the theory of aeroelasticity: Courier Corporation, 2002. [21] H. Schlichting and K. Gersten, Boundary-layer theory: Springer Science & Business Media, 2003. [22] J. G. Daniel Martinez S, 'Parametric Study on the Two-Dimensional Dynamic Ground Effect of a Swimming Undulating Plate,' Mechanics, unreviewed. [23] M. Lighthill, 'Note on the swimming of slender fish,' Journal of fluid Mechanics, vol. 9, pp. 305-317, 1960. [24] D. B. Quinn, K. W. Moored, P. A. Dewey, and A. J. Smits, 'Unsteady propulsion near a solid boundary,' Journal of Fluid Mechanics, vol. 742, pp. 152-170, 2014. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/59644 | - |
| dc.description.abstract | 本研究建立二維比目魚型水下載具模型在水中特定高度下與地面效應之模擬，為了讓水下載具能長時間的在水中做動，藉由計算流體力學工具ANSYS-FLUENT進行流場的分析找出較省能的運動模式，此比目魚型之模型設計參考真實比目魚外型及水下潛體的幾何特性，分別為剛性的本體和軟性的胸鰭，本文主要針對比目魚型二維波動胸鰭與地面之高度變化進行探討，比較在不同高度下推力係數及輸入功率係數的差別，藉由模擬結果分析流場的變化，進而探討地面對比目魚型載具游動時所產生的影響。模擬結果顯示比目魚型載具游動時，在理想流體中，二維波動胸鰭對流場產生的地面效應與使用勢流理論所推導之數學式相符合，證實比目魚型載具在某特定高度能有較佳游動效率，然而在具有黏性之流場狀況下，根據本文結論，所有不同運動模式下靠近牆壁的效率均較高，但不同運動模式之最有效率高度不同。本研究結果證明藉由分析出比目魚型載具在不同運動模式下的省能的游動高度，可以方便未來控制比目魚型載具運動時能在最佳高度下游動，達到節能的目的。 | zh_TW |
| dc.description.abstract | In this study, a simulation study on the kinematic parameters of a two-dimensional flatfish-shaped biomimetic autonomous underwater vehicle (BAUV) under specific height in water is performed. The flow field is analyzed by a computational fluid dynamics tool ANSYS-FLUENT, and the design of the BAUV is based on the biological flatfish to mimic the geometric characteristics of the submerged bodies. The flatfish model is divided into two parts, rigid body and flexible pectoral fin. Mathematical formula is derived to describe the motion of the flexible fin. The distribution of the pressure field and velocity field when the flatfish-shaped BAUV swimming at different height above the ground is compared. The simulation results show that the ground effect of the flow field coincides with the derived formula from the potential theory, and it is confirmed that the optimal swimming efficiency can be obtained at a specific multiple of the characteristic length of the BAUV. The optimization of swimming-height above the ground can be obtained by simulation. In the future applications, the flatfish BAUV can be controlled at a specific height to ground to achieve the purpose of most energy-saving. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-16T09:31:18Z (GMT). No. of bitstreams: 1 ntu-106-R03525004-1.pdf: 2788021 bytes, checksum: 123d914970320f67e775598873779178 (MD5) Previous issue date: 2017 | en |
| dc.description.tableofcontents | 誌謝 i
中文摘要 ii ABSTRACT iii CONTENTS iv LIST OF FIGURE vi LIST OF TABLES ix LIST OF SYMBOLS x Chapter 1 Introduction 1 1.1 Motivation 1 1.2 Literature review 3 1.3 Thesis organization 5 Chapter 2 Mathematical Model 6 2.1 Governing equation 6 2.2 Turbulence model 7 2.3 The k-εmodel 11 Chapter 3 The Model of Flatfish Body 14 3.1 Geometry of model 14 3.2 Settings of CFD 18 3.3 Analysis of lift coefficient and ground effect 22 Chapter 4 Dynamic Ground Effect of an Undulating Plate 33 4.1 Acceleration potential with dynamic ground effect 34 4.2 The motion of the plate 36 4.3 Swimming undulating plate in different frequencies 39 4.4 Swimming undulating plate at different heights 52 Chapter 5 Conclusions 58 REFERENCES 59 Appendix 61 | |
| dc.language.iso | en | |
| dc.title | 二維扁平流線型仿生載具動態地面效應之參數模擬研究 | zh_TW |
| dc.title | Simulation of the Parametric Study of a 2-D Streamline-shape Biomimetic Underwater Vehicle under the Dynamic Ground Effect | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 105-1 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 邱逢琛,林顯群 | |
| dc.subject.keyword | 計算流體力學,仿生型水下載具,游動運動學,地面效應,波動板, | zh_TW |
| dc.subject.keyword | CFD,biomimetic autonomous underwater vehicle,swimming kinematics,ground effect,undulating plate, | en |
| dc.relation.page | 63 | |
| dc.identifier.doi | 10.6342/NTU201700642 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2017-02-15 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 工程科學及海洋工程學研究所 | zh_TW |
| 顯示於系所單位： | 工程科學及海洋工程學系 | |
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