Experimental and numerical study on fluid structure of gravity current with salt water modeling

Wenguo Weng, Y. Hasemi, Weicheng Fan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Gravity current plays an important role on the occurrence of backdraft in building fire, which causes the death of people in situ and the collapse of building due to its abruptness and powerful destroys. In order to study the fluid structure of gravity current prior to backdraft, salt water model is adopted. In this paper, a series of scaled water experiments using DPIV (Digital Particle Image Velocimetry) and numerical simulation based on LES (Large Eddy Simulation) were conducted. The scaled compartment (0.4m × 0. 1 m × 0.1 m) was fitted with two end opening geometries, i.e. full and middle-slot openings. Results presented here include velocity and density profiles of fluid structure of gravity current from experimental data and numerical simulation.

Original languageEnglish
Title of host publicationProgress in Safety Science and Technology Volume 4
Subtitle of host publicationProceedings of the 2004 International Symposium on Safety Science and Technology
EditorsW. Yajun, H. Ping, L. Shengcai
Pages1194-1200
Number of pages7
EditionPART A
Publication statusPublished - 2004 Dec 1
EventProgress in Safety Science and Technology Volume 4: Proceedings of the 2004 International Symposium on Safety Science and Technology - Shanghai, China
Duration: 2004 Oct 252004 Oct 28

Publication series

NameProgress in Safety Science and Technology Volume 4:Proceedings of the 2004 International Symposium on Safety Science and Technology
NumberPART A

Conference

ConferenceProgress in Safety Science and Technology Volume 4: Proceedings of the 2004 International Symposium on Safety Science and Technology
CountryChina
CityShanghai
Period04/10/2504/10/28

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Keywords

  • DPIV
  • Gravity current
  • LES and backdraft

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Weng, W., Hasemi, Y., & Fan, W. (2004). Experimental and numerical study on fluid structure of gravity current with salt water modeling. In W. Yajun, H. Ping, & L. Shengcai (Eds.), Progress in Safety Science and Technology Volume 4: Proceedings of the 2004 International Symposium on Safety Science and Technology (PART A ed., pp. 1194-1200). (Progress in Safety Science and Technology Volume 4:Proceedings of the 2004 International Symposium on Safety Science and Technology; No. PART A).