Computational Studies of Evaporating Sprays in a Shear Layer
Abstract
The objective of the research project was to numerically predict the characteristics of evaporating sprays in a turbulent shear layer. The calculations were performed such that the essential physical processes in spray evaporation in gas turbine combustors are adequately realized . The calculations modeled parallel experiments (ARO Contract number DAAG29-84-K-0165)carried out in a vertically down-flowing wind tunnel where a splitter plate separates two air streams having different velocities. The two air streams meet at the end of the splitter plate and give rise to a confined shear layer. A flat prefilming airblast atomizer is located at the trip of the splitter plate. A liquid spray formed at the atomizer tip evaporates in the turbulent shear layer and is convected downstream. An Eulerian description of the turbulent gas phase flow and a Lagrangian formulation of the droplet size class motion and heat and mass transfer were considered. Single phase two dimensional turbulent flow calculations in a duct were considered. Spray evaporation, turbulent shear layers, computational methods.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 21, 1988
- Accession Number
- ADA201932
Entities
People
- Bakhtier Farouk
Organizations
- Drexel University