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Post-stall control on the SD7003 airfoil using an automatic moving deflector at Re=60,000 : 레이놀즈 수 60,000에서 자동 디플렉터를 이용한 SD7003 익형의 실속 제어
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.advisor | 최해천 | - |
| dc.contributor.author | Cheon somin | - |
| dc.date.accessioned | 2017-07-14T03:40:11Z | - |
| dc.date.available | 2017-07-14T03:40:11Z | - |
| dc.date.issued | 2016-02 | - |
| dc.identifier.other | 000000132863 | - |
| dc.identifier.uri | https://hdl.handle.net/10371/123875 | - |
| dc.description | 학위논문 (석사)-- 서울대학교 대학원 : 기계항공공학부, 2016. 2. 최해천. | - |
| dc.description.abstract | In the present study, we apply an automatic moving deflector
(AMD), a bio-inspired control device from feathers of bird wings,to the suction surface of the SD7003 airfoil to investigate its aerodynamic performances. We conduct a large eddy simulation at Re = 60,000 based on the chord length and free stream velocity. The angle of attack is fixed at a post-stall angle of 12 degree. The parameters of AMD are its length and tilting angle with the chord line. The results of the base airfoil without AMD agree well with previous experimental data. The AMD significantly reduces the flow separation and subsequently the drag coefficient and force fluctuations. | - |
| dc.description.tableofcontents | Chapter 1 Introduction 1
Chapter 2 Numerical Details 4 2.1 Governing equations 4 2.2 Computational details 5 Chapter 3 Numerical Results 9 3.1 Aerodynamic coefficients and flow structures for the SD 7003 airfoil 9 3.2 Aerodynamic coefficients for the controlled airfoils 9 3.3 Comparing flow structures of the no controlled airfoil and the controlled airfoils 10 3.4 Mean velocity and pressure profiles near the leading edge of the no controlled and the controlled airfoils 11 3.5 Mean streamlines of the no controlled and the controlled airfoils 11 3.6 Comparison of the Mean surface coefficients for each cases 12 3.7 Instantaneous three dimensional vortical structures 12 Chapter 4 Summary and Conclusion 27 Bibliography 28 요약 30 | - |
| dc.format | application/pdf | - |
| dc.format.extent | 5950104 bytes | - |
| dc.format.medium | application/pdf | - |
| dc.language.iso | en | - |
| dc.publisher | 서울대학교 대학원 | - |
| dc.subject | automatic moving deflector | - |
| dc.subject.ddc | 621 | - |
| dc.title | Post-stall control on the SD7003 airfoil using an automatic moving deflector at Re=60,000 | - |
| dc.title.alternative | 레이놀즈 수 60,000에서 자동 디플렉터를 이용한 SD7003 익형의 실속 제어 | - |
| dc.type | Thesis | - |
| dc.contributor.AlternativeAuthor | 천소민 | - |
| dc.description.degree | Master | - |
| dc.citation.pages | 39 | - |
| dc.contributor.affiliation | 공과대학 기계항공공학부 | - |
| dc.date.awarded | 2016-02 | - |
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