東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

FindBook

Google Book

Amazon

博客來

Unsteady Aerodynamics with Applications for Wind Turbines.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Unsteady Aerodynamics with Applications for Wind Turbines./
作者:	Brunner, Claudia Elizabeth.
面頁冊數:	1 online resource (165 pages)
附註:	Source: Dissertations Abstracts International, Volume: 83-12, Section: B.
Contained By:	Dissertations Abstracts International83-12B.
標題:	Fluid mechanics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29169739click for full text (PQDT)
ISBN:	9798802749098

Unsteady Aerodynamics with Applications for Wind Turbines.
Brunner, Claudia Elizabeth.

Unsteady Aerodynamics with Applications for Wind Turbines. - 1 online resource (165 pages)

Source: Dissertations Abstracts International, Volume: 83-12, Section: B.

Thesis (Ph.D.)--Princeton University, 2022.

Includes bibliographical references

Wind energy plays a crucial role in clean energy generation. Currently, horizontal axis wind turbines dominate the wind energy sector. Nevertheless, vertical axis wind turbines (VAWTs) have some advantages over traditional horizontal axis wind turbines. However, their performance is difficult to predict and they are prone to failure over time. This is because the axis of rotation of a VAWT is perpendicular to the wind direction, which causes the individual blades to experience rapidly fluctuating flows, even when the wind direction is constant. These fluctuations can lead to unsteady flow phenomena that are not well understood. In this dissertation, new insights into the unsteady flow over an individual blade cross-section are presented. In particular, a flow phenomenon known as dynamic stall is investigated. Due to the experimental challenges of studying high Reynolds number flows, most experimental wind turbine research is conducted at lower Reynolds numbers. The experiments presented in this dissertation were conducted in a pressurized wind tunnel that allowed for high Reynolds numbers at low velocities. The effects of Reynolds number on static and dynamic stall are investigated and the scaling of the dynamic stall delay is studied. The insights from this research are relevant not only for improving the durability and performance of VAWTs, but also to wind turbines and aircraft in general. Lastly, the role of onshore and offshore wind energy in future energy scenarios is investigated using the integrated assessment model WITCH.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798802749098Subjects--Topical Terms:

528155
Fluid mechanics.
Subjects--Index Terms:

AerodynamicsIndex Terms--Genre/Form:

542853
Electronic books.

Unsteady Aerodynamics with Applications for Wind Turbines.
LDR:02815nmm a2200361K 4500 001 2354190
005 20230324111222.5
006 m o d
007 cr mn ---uuuuu
008 241011s2022 xx obm 000 0 eng d
020 $a 9798802749098
035 $a (MiAaPQ)AAI29169739
035 $a AAI29169739
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Brunner, Claudia Elizabeth. $3 3694538
245 1 0 $a Unsteady Aerodynamics with Applications for Wind Turbines.
264 0 $c 2022
300 $a 1 online resource (165 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertations Abstracts International, Volume: 83-12, Section: B.
500 $a Advisor: Hultmark, Marcus.
502 $a Thesis (Ph.D.)--Princeton University, 2022.
504 $a Includes bibliographical references
520 $a Wind energy plays a crucial role in clean energy generation. Currently, horizontal axis wind turbines dominate the wind energy sector. Nevertheless, vertical axis wind turbines (VAWTs) have some advantages over traditional horizontal axis wind turbines. However, their performance is difficult to predict and they are prone to failure over time. This is because the axis of rotation of a VAWT is perpendicular to the wind direction, which causes the individual blades to experience rapidly fluctuating flows, even when the wind direction is constant. These fluctuations can lead to unsteady flow phenomena that are not well understood. In this dissertation, new insights into the unsteady flow over an individual blade cross-section are presented. In particular, a flow phenomenon known as dynamic stall is investigated. Due to the experimental challenges of studying high Reynolds number flows, most experimental wind turbine research is conducted at lower Reynolds numbers. The experiments presented in this dissertation were conducted in a pressurized wind tunnel that allowed for high Reynolds numbers at low velocities. The effects of Reynolds number on static and dynamic stall are investigated and the scaling of the dynamic stall delay is studied. The insights from this research are relevant not only for improving the durability and performance of VAWTs, but also to wind turbines and aircraft in general. Lastly, the role of onshore and offshore wind energy in future energy scenarios is investigated using the integrated assessment model WITCH.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Fluid mechanics. $3 528155
650 4 $a Aerospace engineering. $3 1002622
653 $a Aerodynamics
653 $a Dynamic stall
653 $a Wind turbines
655 7 $a Electronic books. $2 lcsh $3 542853
690 $a 0204
690 $a 0538
710 2 $a ProQuest Information and Learning Co. $3 783688
710 2 $a Princeton University. $b Mechanical and Aerospace Engineering. $3 2102828
773 0 $t Dissertations Abstracts International $g 83-12B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29169739 $z click for full text (PQDT)