https://scholars.lib.ntu.edu.tw/handle/123456789/80214
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor | 王安邦 | en |
dc.contributor | 臺灣大學:應用力學研究所 | zh_TW |
dc.contributor.author | 周志成 | zh |
dc.contributor.author | Chou, Chih-Cheng | en |
dc.creator | 周志成 | zh |
dc.creator | Chou, Chih-Cheng | en |
dc.date | 2006 | en |
dc.date.accessioned | 2007-11-29T02:32:15Z | - |
dc.date.accessioned | 2018-06-29T00:12:20Z | - |
dc.date.available | 2007-11-29T02:32:15Z | - |
dc.date.available | 2018-06-29T00:12:20Z | - |
dc.date.issued | 2006 | - |
dc.identifier | zh-TW | en |
dc.identifier.uri | http://ntur.lib.ntu.edu.tw//handle/246246/62585 | - |
dc.description.abstract | 本文所探到的主要分成兩個部分,首先對於單動式與複動式合成噴流致動裝置進行流場特性之比較。由結果可以發現,複動式合成噴流致動裝置所產生的渦漩由於環狀噴流做與中央噴流相反行程的作動所以在渦漩前進的速度上會慢上約7.8%以下,但是渦度隨著頻率增加差距會越來越大,在頻率為12Hz時渦度已經是單動式合成噴流的2.48倍了。此一優勢能讓渦漩傳送的動量更強更遠,而且渦漩結構也更緊實集中。 再來針對複動式合成噴流致動裝置進行更進一步的觀察與分析,在此可以發現,渦漩的出口速度與渦度強弱與腔內的體積及薄膜形狀無很大的關係,其主要與薄膜振動頻率以及流量有關,故要進行最佳化設計應該以此方向進行改進,最終能夠提供微小化嘗試設計之方向以擴大其應用範圍。 | zh_TW |
dc.description.abstract | There are two section in the main object of this thesis : First of all, I would like to discuss the advantage and shortage of Single Acting Synthetic Jet Actuator( SSJA) and Double Acting Synthetic Jet Actuator ( DSJA ) . The advantage of DSJA compared with SSJA is that the fluid sucked into the inner chamber is from diffuser but from the outer of the central nozzle. But the shortage is the velocity of the center of the vortex is slower. And also you can see the flow visualization of SSJA and DSJA. Here it shows how the fluid sucked into the inner chamber through the annual jet. The second section is the discussion of the performance of DSJA. In this section, the velocity profiles in particular time and position will be fully discussed. And then we have the preliminary direction to optimize the performance of DSJA. It will provide a direction to design the micro structure of DSJA so that the application of DSJA will be increased enormously. | en |
dc.description.tableofcontents | 中文摘要………………………………………………………………. …i 英文摘要……………………………………………………………... …ii 目錄………………………………..……………………………….........iii 表目錄…………………………………………………………………...iv 符號說明………………………………………………………….…....viii 第一章 緒論 .…………………………………………………………1 1.1 前言…………………………………………………………. …..1 1.2 文獻回顧……………………………………………………. …..2 第二章 實驗架設及步驟 2.1實驗設備架設…………………………………………………… 7 2.2實驗步驟…………………………………………………………13 第三章 單動式與複動式合成噴流之比較 3.1渦漩中心前進距離之比較………………………………………15 3.2渦漩強度之比較…………………………………………………16 3.3不同噴口距離下在軸方向上流場速度變化之比較 ………… 17 3.4 SSJA與DSJA平均速度之比較……………………………… 22 第四章 複動式合成噴流之流場特性分析討論 4.1複動式合成噴流之流場顯影……………………………………25 4.2複動式合成噴流之中心軸流場速度與時間之關係……………27 4.3複動式合成噴流不同噴口距離下在不同軸方向的流場速度…31 4.4複動式合成噴流之頻率與渦漩位置關係圖…………………… 34 4.5複動式合成噴流之不同腔內體積的渦度最大值隨頻率之變化圖 ……………………………………………………………………36 4.6擴散孔開口率與渦度關係圖……………………………………39 4.7實驗與模擬於孔口處速度分佈情形之比較……………………40 第五章 結論與未來展望 5.1結論………………………………………………………………43 5.2未來展望…………………………………………………………44 參考文獻 ……………………………………………………………45 | zh_TW |
dc.format.extent | 1991808 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language | zh-TW | en |
dc.language.iso | en_US | - |
dc.subject | 合成噴流 | en |
dc.subject | 流場顯影 | en |
dc.subject | 複動式合成噴流 | en |
dc.subject | synthetic jet | en |
dc.subject | double acting synthetic jet | en |
dc.title | 複動式合成噴流之流場顯影及特性探討 | zh |
dc.title | Study of Double Acting Synthetic Jet | en |
dc.type | thesis | en |
dc.identifier.uri.fulltext | http://ntur.lib.ntu.edu.tw/bitstream/246246/62585/1/ntu-95-R92543063-1.pdf | - |
dc.relation.reference | 1. Beratlis, N. and M. K. Smith, “Optimization of Synthetic Jet Cooling for Microelectrics Application,” The 19th IEEE SEMI-THERM Symposium, Vol. 25, No. 4, pp. 646–648, July 2004. 2. Glezer, A. and M. Amitay, “Synthetic Jet,” Annu. Rev. Fluid Mech., Vol. 34, pp. 503–529, 2002. 3. John, E. C. and S. Julio, “The Evolution of Round Zero-net-mass-flux Jets,” J. Fluid Mech., Vol. 472, No. 1073, pp. 167–200, Dec. 10, 2002. 4. Kercher, D. S., J.-B. Lee, O. Brand, M. G. Allen, and A. Glezer, “Microjet Cooling Devices for Thermal Management of Electronics ” IEEE Transactions on Components and Packaging Technologies, Vol. 26, No. 2, pp. 359–366, June 2003. 5. Lee, C. Y. and Goldstein, D. B. “Tow Dimensional Synthetic Jet Simulation,” AIAA Journal, Vol. 40, No. 3, pp. 510–516, March 2002. 6. Mahalingam, R. and A. Glezer, “Air Cooled Heat Sinks Integrated with Synthetic Jets,” The Eighth Intersociety Conference on Thermal Phenomena, pp. 285–291, 30 May – 1 June, 2002. 7. Mahalingam, R., N. Rumigny, and A. Glezer, “Thermal Management Using Synthetic Jet Ejectors,” IEEE Transactions on Components and Packaging Technologies, Vol. 27, No. 3, pp. 439–444, September 2004. 8. Mallinson, S. G., C. Y. Kwok, and J. A. Reizes, “Numerical Simulation of Micro-fabricated Zero Mass-flux Jet Actuators,” Sensors and Actuators A: Physical, Vol. 105, pp. 229–236, 2003. 9. Mallinson, S. G., J. A. Reizes, and G. Hong, “An Experimental and Numerical Study of Synthetic Jet Flow,” Aeronautical Journal, Vol. 105, No. 1043, pp. 41–49, January 2001. 10. Pimpin, A., Y. Suzuki, and N. Kasagi, “Micro Electrostrictive Actuator with Metal Compliant Electrodes for Flow Control Applications,” The 17th IEEE International Conference on MEMS, pp. 478–481, 2004. 11. Reynolds, W. C., D. E. Parekh, P. J. D. Juvet, and M. J. D. Lee, “Bifurcating and Blooming Jets,” Annu. Rev. Fluid Mech., Vol. 35, pp. 295–315, 2003. 12. Rizzetta, D. P., M. R. Visbal, and M. J. Stanek, “Numerical Investigation of Synthetic Jet Flowfields,” AIAA Journal, Vol. 37, No. 8, pp. 919–927, August 1999. 13. Smith, B. L. and A. Glezer, “Jet Vectoring Using Synthetic Jets,” J. Fluid Mech., Vol. 458, pp. 1–34, 2002. 14. Smith, B. L. and A. Glezer, “The Formation and Evolution of Synthhetic Jets,” Phys. Fluids, Vol. 10, No. 9, pp. 2281–2297, 1998. 15. Tan, X.-M. and J.-Z. Zhang, “Numerical Simulation of Impingement Cooling by Synthetic Jet,” Journal of Engineering Thermophysics, Vol. 25, No. 4, pp. 646–648, July 2004. 16. Tang, H. and S. Zhong, “2D Numerical Study of Circular Synthetic Jets in Quiescent Flows,” Aeronautical Journal, Vol. 109, No. 1092, pp. 89–97, February 2005. 17. Trávnícek, Z., A. Fedorchenko and A.-B. Wang, “Enhancement of synthetic jets by means of an integrated valve-less pump, Part I: Design of the actuator,” Sensors and Actuators A: Physical, Vol. 120, No. 1, pp. 232–240, Apr 29, 2005. 18. Trávnícek, Z., A. Fedorchenko and A.-B. Wang, “Enhancement of synthetic jets by means of an integrated valve-less fluid pump. Part II. Numerical and experimental studies,” Sensors & Actuators A, 125 (2005) 50–58 19. Wang, Y., “Microfluidic Technology for Integrated Thermal Management: Micromachined Synthetic Jet,” Ph. D. thesis, Georgia Inst. Technol., Atlanta, GA, November 2003. 20. Watson, M., A. J. Jaworski, and N. J. Wood, “A study of synthetic jets from rectangular and dual-circular orifices,” Aeronautical Journal, Vol. 107, No. 1073, pp. 427–434, July 2003. | en |
item.openairecristype | http://purl.org/coar/resource_type/c_46ec | - |
item.openairetype | thesis | - |
item.languageiso639-1 | en_US | - |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.fulltext | with fulltext | - |
顯示於: | 應用力學研究所 |
檔案 | 描述 | 大小 | 格式 | |
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ntu-95-R92543063-1.pdf | 23.53 kB | Adobe PDF | 檢視/開啟 |
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