Fuel evaporation rate in intense recirculation zones
Abstract
An expression is derived for the mean liquid fuel concentration in a flow region with intense recirculation rates. The expression makes it possible to evaluate liquid fuel evaporation rates. Finite fuel concentrations are predicted even for residence times greater than the critical value for single drops. The mean fuel evaporation rate may, therefore, be significantly smaller than that for single drops. It is concluded that in a jet engine combustor in which strong recirculation is generated the fuel will not be fully evaporated.
- Publication:
-
AIAA Journal
- Pub Date:
- March 1975
- DOI:
- Bibcode:
- 1975AIAAJ..13..394O
- Keywords:
-
- Drops (Liquids);
- Evaporation Rate;
- Fuel Combustion;
- Jet Engines;
- Multiphase Flow;
- Recirculative Fluid Flow;
- Air Breathing Engines;
- Combustion Products;
- Engine Design;
- Fuel Control;
- Liquid-Vapor Interfaces;
- Temperature Effects;
- Fluid Mechanics and Heat Transfer