Выходит 12 номеров в год
ISSN Печать: 1044-5110
ISSN Онлайн: 1936-2684
Indexed in
DROPLET STREAM DYNAMICS AT HIGH AMBIENT PRESSURE
Краткое описание
The wake of a leading droplet can influence a trailing droplet's behavior by altering the environment through which the trailing droplet travels. A high-ambient-pressure environment not only changes the result of any collisions by adding a strong shearing element, but the increase in aerodynamic forces also alters the droplet wake. Despite these effects, this work shows experimentally that classical small-perturbation theory for a cylindrical jet breakup into droplets holds over the range of ambient pressure from 1 to 70 atm. Further, the length of the stable droplet stream is controlled by droplet wake interactions and a droplet's ability to resist the inertial and shearing influences of the ambient gas. Secondary breakup transitions at high ambient pressures do not match those observed in isolated-droplet experiments. Collisions with satellite droplets at elevated pressures enhances deformation breakup significantly. Interestingly, shear stripping in a stream of droplets occurs in the Reynolds and Weber number regime associated with droplet deformation breakup in the isolated-droplet case. This rapid stripping phenomena may also be a result of wake interactions.
-
Lai Wei-Hsiang , Chen Chia-Chin , Oxidation Effect on the Monosized Droplets Generation of the Liquid Metal Jet , Journal of Fluids Engineering, 125, 3, 2003. Crossref
-
Chiu Sheng‐Lin, Lin Ta‐Hui, Breakup of compound liquid jets under periodic excitation at small core‐to‐shell mass ratios, Journal of the Chinese Institute of Engineers, 31, 1, 2008. Crossref
-
Meng Hua, Yang Vigor, Vaporization of two liquid oxygen (LOX) droplets in tandem in convective hydrogen streams at supercritical pressures, International Journal of Heat and Mass Transfer, 68, 2014. Crossref
-
SHAW B. D., WEI J. B., DWYER H. A., INFLUENCE OF A COOLED WALL ON DROPLET STREAM COMBUSTION, Combustion Science and Technology, 176, 2, 2004. Crossref
-
Michaelis B. Matthew, Dunn-Rankin Derek, Smith Robert F., Bobrow James E., In-flight thermal control of molten metal droplet streams, International Journal of Heat and Mass Transfer, 50, 23-24, 2007. Crossref
-
KHAU LYNN H., DWYER HARRY A., SHAW* BENJAMIN D., STUDIES ON COMBUSTION OF DOUBLE STREAMS OF METHANOL/DODECANOL FUEL DROPLETS NEXT TO A COOLING WALL, Combustion Science and Technology, 179, 3, 2007. Crossref
-
Lu Wei-Fu, Lai Wei-Hsiang, Chang Keh-Chin, Tsai Tung-Hsiao, TURBULENCE MODULATION MEASUREMENTS IN A CHARGED MONODISPERSED DROPLET STREAM, Chemical Engineering Communications, 197, 2, 2009. Crossref