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Liquid Jets in Subsonic Crossflow

Tambe, Samir B.
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1100876702

Abstract Details

2004, MS, University of Cincinnati, Engineering : Aerospace Engineering.
An experimental study has been conducted to study the behavior of liquid jets injected transversely into a subsonic crossflow of air. Liquid jet operating conditions are represented by the aerodynamic Weber number (We) and the liquid-air momentum ratio (q). Three injection liquids, water, Jet-A and N-Heptane, and two injection diameters (D), 0.381 and 0.762 mm, have been used to increase the range of operating conditions for the current experiments. q was restricted to 0.7-10.2 to ensure applicability to premix ducts of LPP combustors. Pulsed shadowgraphy and Phase Doppler Particle Analyzer (PDPA) techniques were used to take measurements for these experiments. Jet breakups and penetrations, and the structures of the sprays produced after breakup have been studied. Two breakup modes have been observed, column and surface breakup. The streamwise location of breakup is constant while the transverse location increases with q. Jet penetrations have been correlated with q, D and the streamwise distance (z). The volume flux of the spray exhibits a maximum in the spray core. Droplet axial velocities (Ud) exhibit a minimum below the spray core and increase with increasing transverse distance. The transverse location of the maximum in the droplet sizes occurs in the spray core for low q. Its location increases with an increase in q. Droplet sizes decrease with an increase in the crossflow velocity (U∞) while penetration increases with an increase in D or q. This property has been found to be very significant.
Dr. San-Mou Jeng (Advisor)
114 p.
Engineering, Aerospace
liquid jet; crossflow; subsonic; breakup; penetration; spray; atomization

Recommended Citations

Citations

  • Tambe, S. B. (2004). Liquid Jets in Subsonic Crossflow [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1100876702

    APA Style (7th edition)

  • Tambe, Samir. Liquid Jets in Subsonic Crossflow. 2004. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1100876702.

    MLA Style (8th edition)

  • Tambe, Samir. "Liquid Jets in Subsonic Crossflow." Master's thesis, University of Cincinnati, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1100876702

    Chicago Manual of Style (17th edition)

ucin1100876702
2,072
© 2004, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.