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Validation of CFD Tornado Pressure on Building and Wind Field with TTU Vortex Chamber Measurements.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Validation of CFD Tornado Pressure on Building and Wind Field with TTU Vortex Chamber Measurements./
作者:	Verma, Sumit.
面頁冊數:	1 online resource (193 pages)
附註:	Source: Dissertations Abstracts International, Volume: 84-01, Section: B.
Contained By:	Dissertations Abstracts International84-01B.
標題:	Civil engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29206684click for full text (PQDT)
ISBN:	9798834076506

Validation of CFD Tornado Pressure on Building and Wind Field with TTU Vortex Chamber Measurements.
Verma, Sumit.

Validation of CFD Tornado Pressure on Building and Wind Field with TTU Vortex Chamber Measurements. - 1 online resource (193 pages)

Source: Dissertations Abstracts International, Volume: 84-01, Section: B.

Thesis (Ph.D.)--University of Arkansas, 2022.

Includes bibliographical references

Structural failure of low-rise buildings is the root cause of higher number of casualties, death tolls and economic losses at the place of occurrence of tornadoes. Proper design of low-rise buildings in tornado-prone areas require accurate estimation of tornado-induced wind loads; however, exhaustive research to estimate the wind loads reliably on buildings during tornadic events is still lacking. Several studies have been carried out to investigate the magnitude of forces induced by tornado winds on buildings from experimental as well as computational side. However, the wind pressures obtained on the building from different experimental studies have shown significant variation from one study to another. Similarly, the wind pressures on the building from CFD simulation of tornado vortex often lacks comparison and/or validation with experimental data. Even the modeling of CFD tornado chamber and CFD flow validation is fraught with several challenges such as requirements of high-performance (or supercomputing) resources and lack of guidelines for validation of wind field of tornado vortex from CFD model. Thus, in this work, a simple yet an effective CFD tornado simulator model is developed, which provides comparable results with experiment without the necessity of supercomputing resources. This work also identifies and proposes four important features of tornado vortex (i.e., touchdown swirl ratio, core radius, the maximum tangential velocity & the elevation of maximum tangential velocity) including the ground pressure profile for validation of wind field obtained from CFD model. A comparative analysis of the four important vortex features from different tornado chambers and different work of literature is also presented. Lastly, the pressures induced by tornado vortex from CFD model on the building is validated with TTU experimental datasets. Furthermore, a detailed analysis on the effect of size of building, flow structure and Reynolds number of vortex on the induced wind pressures on the building is also presented.

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

Mode of access: World Wide Web

ISBN: 9798834076506Subjects--Topical Terms:

860360
Civil engineering.
Subjects--Index Terms:

Computational fluid dynamics flow validationIndex Terms--Genre/Form:

542853
Electronic books.

Validation of CFD Tornado Pressure on Building and Wind Field with TTU Vortex Chamber Measurements.
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