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An investigation into the effect of surface-mounted circular obstructions on flow driven diffusion flames

Davis, John Matthew

Abstract Details

2009, MS, University of Cincinnati, Engineering : Aerospace Engineering.
With little data currently available, designers of aircraft engine nacelle fire-test simulators have little basis to determine the size of geometric detail required to provide a sufficient representation of the actual specimen. The current study presents an experimental investigation into the minimum geometry size required for accurate aircraft engine simulator design by examining the turbulent shear flow downstream of surface mounted circular cylinders of diameters of 5, 10, 20, and 40 mm, and, in-turn, the cylinder's effect on the flame stability of a downstream pool fire. To facilitate this investigation, each cylinder was individually flush-mounted on the test section floor of a wind tunnel specifically designed to simulate an aircraft engine nacelle, which operated at a freestream velocity and turbulence intensity of 8.4 m/s and 1%, respectively. Results show a changed in the flow phenomenon between the 10 and 20 mm cylinders, and indicate a possible minimum geometry size.
Peter Disimile, PhD (Committee Chair)
Paul Orkwis, PhD (Committee Member)
Shaaban Abdallah, PhD (Committee Member)
Norman Toy, PhD (Committee Member)
171 p.

Recommended Citations

Citations

  • Davis, J. M. (2009). An investigation into the effect of surface-mounted circular obstructions on flow driven diffusion flames [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1236291952

    APA Style (7th edition)

  • Davis, John. An investigation into the effect of surface-mounted circular obstructions on flow driven diffusion flames. 2009. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1236291952.

    MLA Style (8th edition)

  • Davis, John. "An investigation into the effect of surface-mounted circular obstructions on flow driven diffusion flames." Master's thesis, University of Cincinnati, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1236291952

    Chicago Manual of Style (17th edition)