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ZataniaLojo_Arland-MasterThesis.pdf (7.18 MB)

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Effects of Coriolis Force on Liquid Fuel Wick Flames in Artificial Partial Gravity in a Centrifuge

Zatania Lojo, Arland
http://rave.ohiolink.edu/etdc/view?acc_num=case1670837402325053

Abstract Details

2022, Master of Sciences (Engineering), Case Western Reserve University, EMC - Aerospace Engineering.
Numerical simulations are performed to support a combustion experiment campaign in partial gravity in a centrifuge designed for use in conjunction with the NASA Glenn Research Center’s Zero Gravity Research Facility (a 5.2 second drop tower). The centrifuge is a circular dome chamber of volume ~ 0.3 m3 with 81.3 cm diameter. The artificial gravitational field is controlled by the rotation rate of the chamber. This is complicated by gravitational gradients as a function of radius and by Coriolis force as a function of flow velocity. The model is constructed with Ansys FLUENT utilizing a rotating non-inertial reference frame and simulates the entire chamber volume containing a heptane candle with a wick length of 10 mm × 3.18 mm diameter located at 32 cm from the centrifuge center. Simulation results locally near the candle are compared to a series of experiment images where the flame tip bends in the Coriolis force direction. The study investigates the recirculation effects and the relation between the buoyancy and the Coriolis force in how they affect the flame. The model simulates the experiments well and suggestions are made to avoid recirculation effects in future centrifuge experiments.
Ya-Ting Liao (Committee Chair)
Paul Barnhart (Committee Member)
Ankit Sharma (Committee Member)
Paul Ferkul (Committee Member)
Michael Johnston (Committee Member)
Bryan Schmidt (Committee Member)
70 p.
Aerospace Engineering
ANSYS fluent; numerical simulation; partial gravity; microgravity; centrifuge; Coriolis effect; flame shape; combustion; fire sciences; fire behavior; CFD; Computational Fluid Dynamics

Recommended Citations

Citations

  • Zatania Lojo, A. (2022). Effects of Coriolis Force on Liquid Fuel Wick Flames in Artificial Partial Gravity in a Centrifuge [Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1670837402325053

    APA Style (7th edition)

  • Zatania Lojo, Arland. Effects of Coriolis Force on Liquid Fuel Wick Flames in Artificial Partial Gravity in a Centrifuge. 2022. Case Western Reserve University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1670837402325053.

    MLA Style (8th edition)

  • Zatania Lojo, Arland. "Effects of Coriolis Force on Liquid Fuel Wick Flames in Artificial Partial Gravity in a Centrifuge." Master's thesis, Case Western Reserve University, 2022. http://rave.ohiolink.edu/etdc/view?acc_num=case1670837402325053

    Chicago Manual of Style (17th edition)

case1670837402325053
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© 2022, all rights reserved.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.