Effects of aspect ratio on tornado-like vortices simulated in a large-scale tornado simulator

Zhuo Tang, Liang Wu, Changda Feng, Delong Zuo, Darryl James

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations

Abstract

Experiments were conducted in a large-scale Ward-type tornado simulator to study tornado-like vortices. Both flow velocities and the pressures at the surface beneath the vortices were measured. An interpretation of these measurements enabled an assessment of the mean flow field as well as the mean and fluctuating characteristics of the surface pressure deficit, which is a manifestation of the flow fluctuation aloft. An emphasis was placed on the effect of the aspect ratio of the tornado simulator on the characteristics of the simulated flow and the corresponding surface pressure deficit, especially the evolution of these characteristics due to the transition of the flow from a single-celled vortex to a two-celled vortex with increasing swirl ratio.

Original languageEnglish
StatePublished - 2017
Event2017 13th Americas Conference on Wind Engineering, ACWE 2017 - Gainesville, United States
Duration: May 21 2017May 24 2017

Conference

Conference2017 13th Americas Conference on Wind Engineering, ACWE 2017
CountryUnited States
CityGainesville
Period05/21/1705/24/17

Keywords

  • Aspect ratio
  • Surface pressure deficit
  • Swirl ratio
  • Tornado-like vortex

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