Spatio-temporal Characteristics of Spray from Liquid Jet in Crossflow

ISBN-13: 9783639182996 / Angielski / Miękka / 2009 / 92 str.

Scott Thawley

Opis

A liquid jet in a crossflow is often used to as a fuel injection method for combustion systems. Parameters such as penetration and core trajectory are used as characterization for the spray and specification of design criteria for combustor geometry. In addition to penetration and core trajectory, mapping the mass flux in space and time is an important part of modeling evaporation and global equivalence ratio throughout the combustor. Accurate prediction of these spray characteristics allows for a stable and robust combustor design. Presented are the results of measurements using Phase Doppler Analyzer, PDA, and a time resolved, digital, particle imaging velocimetry system, TRDPIV. The measurements include instantaneous and time-averaged liquid phase velocity fields, spray penetration and core location in the near field and far field of the spray resulting from the liquid jet breakup.

O autorze

The author's background is concentrated in multi-phase flow and combustion dynamics. With respect to combustion dynamics, he has designed equipment and run experiments for premixed gaseous and liquid fuel in stable and unstable regimes. The author has experience with laser based measurement and has developed analysis tools for high speed video.