Abstract
We analyze the evaporation of a multisize (polydisperse) liquid fuel
spray in a shear-layer between two parallel unidirectional streams of
unequal velocity. The analysis is also applicable for a shear-layer
between two radially spreading streams which share the same axis of
symmetry. Similarity solutions are presented for the evolution in
droplet size distributions across the shear-layer, and the effects of
various initial droplet size distributions on the profiles of fuel-vapor
concentrations are examined. A qualitative comparison between the
present results for a typical computed total mass distribution of the
liquid-phase and experimental results of the intensity of light
scattering from droplets as reported by Lazaro and Lasheras (1988) shows
similarity between the two profiles. This supports the assumptions and
boundary-conditions employed in the present study. The general behavior
of the theoretical Sauter Mean Diameter distribution of the spray across
the shear layer also compares well with the reported experimental
results of Lazaro and Lasheras.
| Original language | English GB |
|---|---|
| Title of host publication | AIAA, SAE, ASME, and ASEE, Joint Propulsion Conference and Exhibit, 29th, Monterey, CA, June 28-30, 1993 |
| State | Published - 1 Jun 1993 |
| Externally published | Yes |
Keywords
- Drop Size
- Fuel Sprays
- Liquid-Vapor Interfaces
- Shear Flow
- Shear Layers
- Boundary Conditions
- Far Fields
- Incompressible Flow
- Laminar Flow
- Similarity Theorem
- Steady Flow