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High Reynolds Number Wind Tunnel Studies of a Wind Turbine's Wake- [electronic resource]
![High Reynolds Number Wind Tunnel Studies of a Wind Turbine's Wake - [electronic resource]](/Users/Baul/Images/book.png)
High Reynolds Number Wind Tunnel Studies of a Wind Turbine's Wake- [electronic resource]
상세정보
- 자료유형
- 학위논문파일 국외
- 최종처리일시
- 20240214100114
- ISBN
- 9798379716868
- DDC
- 621
- 서명/저자
- High Reynolds Number Wind Tunnel Studies of a Wind Turbines Wake - [electronic resource]
- 발행사항
- [S.l.]: : Princeton University., 2023
- 발행사항
- Ann Arbor : : ProQuest Dissertations & Theses,, 2023
- 형태사항
- 1 online resource(153 p.)
- 주기사항
- Source: Dissertations Abstracts International, Volume: 84-12, Section: B.
- 주기사항
- Advisor: Hultmark, Marcus.
- 학위논문주기
- Thesis (Ph.D.)--Princeton University, 2023.
- 사용제한주기
- This item must not be sold to any third party vendors.
- 초록/해제
- 요약Wind energy is expected to serve as an integral player in the campaign to replace fossil fuels with renewable energy sources. The use of wind farms, groups of individual wind turbines, is a common way to harness wind energy. Wind turbine wakes extract energy from the flow and reduce the energy available for downstream turbines, compromising the energy density of wind farms. Experimental campaigns have been conducted to understand these turbulent and complex flows, but none have been able to conduct these experiments while accounting for scale effects. In the following dissertation, wind turbine wake experiments conducted over an unprecedented Reynolds number, tip speed ratio, and downstream distance range are presented. A unique pressurized wind tunnel facility was used to acquire this novel dataset. Furthermore, to gain insight into some of the smallest of turbulent lengthscales, a nanoscale thermal anemometry probe was used to measure the wake. An investigation of Reynolds number and tip speed ratio effects was conducted through an analysis of the flow statistics and spectra. Special attention is dedicated to understanding how turbine-dependent structures, such as the tip vortex, wake meandering, and hub vortex, evolve and influence wake behavior. The tip vortex is shown to have a strong and long-lasting effect on a wide range of structures. Wake meandering is found to be one of the only structures that survives into the intermediate wake and is an integral part of the wake dynamics. Finally, a hub vortex - hypothesized to be caused by the high solidity of the studied rotor - was found, indicating that turbine geometry plays a critical role in wake dynamics and is an avenue for future research.
- 일반주제명
- Mechanical engineering.
- 일반주제명
- Civil engineering.
- 키워드
- Flow structures
- 키워드
- Reynolds numbers
- 키워드
- Hot-wire
- 키워드
- Wakes
- 키워드
- Wind turbines
- 기타저자
- Princeton University Mechanical and Aerospace Engineering
- 기본자료저록
- Dissertations Abstracts International. 84-12B.
- 기본자료저록
- Dissertation Abstract International
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008240612s2023 us |||||||||||||||c||eng d■001000016931759
■00520240214100114
■006m o d
■007cr#unu||||||||
■020 ▼a9798379716868
■035 ▼a(MiAaPQ)AAI30422283
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a621
■1001 ▼aPique, Alexander.
■24510▼aHigh Reynolds Number Wind Tunnel Studies of a Wind Turbine's Wake▼h[electronic resource]
■260 ▼a[S.l.]:▼bPrinceton University. ▼c2023
■260 1▼aAnn Arbor :▼bProQuest Dissertations & Theses, ▼c2023
■300 ▼a1 online resource(153 p.)
■500 ▼aSource: Dissertations Abstracts International, Volume: 84-12, Section: B.
■500 ▼aAdvisor: Hultmark, Marcus.
■5021 ▼aThesis (Ph.D.)--Princeton University, 2023.
■506 ▼aThis item must not be sold to any third party vendors.
■520 ▼aWind energy is expected to serve as an integral player in the campaign to replace fossil fuels with renewable energy sources. The use of wind farms, groups of individual wind turbines, is a common way to harness wind energy. Wind turbine wakes extract energy from the flow and reduce the energy available for downstream turbines, compromising the energy density of wind farms. Experimental campaigns have been conducted to understand these turbulent and complex flows, but none have been able to conduct these experiments while accounting for scale effects. In the following dissertation, wind turbine wake experiments conducted over an unprecedented Reynolds number, tip speed ratio, and downstream distance range are presented. A unique pressurized wind tunnel facility was used to acquire this novel dataset. Furthermore, to gain insight into some of the smallest of turbulent lengthscales, a nanoscale thermal anemometry probe was used to measure the wake. An investigation of Reynolds number and tip speed ratio effects was conducted through an analysis of the flow statistics and spectra. Special attention is dedicated to understanding how turbine-dependent structures, such as the tip vortex, wake meandering, and hub vortex, evolve and influence wake behavior. The tip vortex is shown to have a strong and long-lasting effect on a wide range of structures. Wake meandering is found to be one of the only structures that survives into the intermediate wake and is an integral part of the wake dynamics. Finally, a hub vortex - hypothesized to be caused by the high solidity of the studied rotor - was found, indicating that turbine geometry plays a critical role in wake dynamics and is an avenue for future research.
■590 ▼aSchool code: 0181.
■650 4▼aMechanical engineering.
■650 4▼aCivil engineering.
■653 ▼aFlow structures
■653 ▼aReynolds numbers
■653 ▼aHot-wire
■653 ▼aWakes
■653 ▼aWind turbines
■690 ▼a0548
■690 ▼a0543
■71020▼aPrinceton University▼bMechanical and Aerospace Engineering.
■7730 ▼tDissertations Abstracts International▼g84-12B.
■773 ▼tDissertation Abstract International
■790 ▼a0181
■791 ▼aPh.D.
■792 ▼a2023
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16931759▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
■980 ▼a202402▼f2024
