Structure of nonevaporating sprays. I - Initial conditions and mean properties

Autor:	Q.-F. Zhang, Gerard M. Faeth, A. S. P. Solomon, J.-S. Shuen
Rok vydání:	1985
Předmět:	Physics::Fluid Dynamics Mass flux Materials science Flow velocity Turbulence Sauter mean diameter Drop (liquid) Aerospace Engineering Thermodynamics Slip (materials science) Two-phase flow Mechanics Reynolds stress
Zdroj:	AIAA Journal. 23:1548-1555
ISSN:	1533-385X 0001-1452
DOI:	10.2514/3.9122
Popis:	Structure measurements were completed within the dilute portion of axisymmetric nonevaporating sprays. Measurements included: mean velocities, velocity fluctuations, and Reynolds stress of the gas phase; and mean velocities, fluctuating velocities, mass flux, and diameter distributions of the drop phase. The measurements were used to evaluate three typical methods of analyzing sprays: (1) a locally homogeneous flow (LHF) analysis, where slip between the phases is neglected; (2) a deterministic separated flow (DSF) analysis, where slip is considered but effects of drop interactions with turbulence are ignored; and (3) a stochastic separated flow (SSF) analysis, where effects of both slip and turbulence are considered using random-walk computations for drop motion. Measurements of initial conditions of both phases near the injector, mean gas-phase properties, and liquid flux distributions are described herein. Best agreement between predictions and measurements was obtained with the SSF model, which provided a reasonable representation of turbulent dispersion of drops. A companion paper presents additional measurements of drop continuous phase properties.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::07a9a5dab28ec516fae51684fd421b61 https://doi.org/10.2514/3.9122 Zobrazit plný text záznamu