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Numerical modeling of turbulent evaporating gas-droplet two-phase flows in an afterburner diffusor of turbo-fan jet engines

Journal Article:

Abstract

Two-dimensional turbulent evaporating gas-droplet two-phase flows in an afterburner diffusor of turbofan jet engines are simulated here by a k-epsilon turbulence model and a particle trajectory model. Comparison of predicted gas velocity and temperature distributions with experimental results for the cases without liquid spray shows good agreement. Gas-droplet two-phase flow predictions give plausible droplet trajectories, fuel-vapor concentration distribution, gas-phase velocity and temperature field in the presence of liquid droplets. One run of computation with this method is made for a particular afterburner. The results indicate that the location of the atomizers is not favorable to flame stabilization and combustion efficiency. The proposed numerical modeling can also be adopted for optimization design and performance evaluation of afterburner combustors of turbofan jet engines. 7 refs.
Authors:
Zhou, Lixing; Zhang, Jian [1] 
  1. Qinghua Univ., Beijing (China)
Publication Date:
Nov 01, 1990
Product Type:
Journal Article
Reference Number:
EDB-91-073681
Resource Relation:
Journal Name: Chinese Journal of Aeronautics; (China); Journal Volume: 3
Subject:
33 ADVANCED PROPULSION SYSTEMS; AFTERBURNERS; MATHEMATICAL MODELS; TURBOFAN ENGINES; TURBOJET ENGINES; COMBUSTION CHAMBERS; COMPARATIVE EVALUATIONS; DROPLETS; EVAPORATION; GAS FLOW; INTERACTIONS; OPTIMIZATION; PERFORMANCE; STABILITY; TWO-PHASE FLOW; ENGINES; EQUIPMENT; FLUID FLOW; PARTICLES; PHASE TRANSFORMATIONS; POLLUTION CONTROL EQUIPMENT; 330603* - Vehicle Design Factors- Engine System; 330000 - Advanced Propulsion Systems
OSTI ID:
5779422
Country of Origin:
China
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1000-9361; CODEN: CJAEE
Submitting Site:
IAA
Size:
Pages: 258-265
Announcement Date:

Journal Article:

Citation Formats

Zhou, Lixing, and Zhang, Jian. Numerical modeling of turbulent evaporating gas-droplet two-phase flows in an afterburner diffusor of turbo-fan jet engines. China: N. p., 1990. Web.
Zhou, Lixing, & Zhang, Jian. Numerical modeling of turbulent evaporating gas-droplet two-phase flows in an afterburner diffusor of turbo-fan jet engines. China.
Zhou, Lixing, and Zhang, Jian. 1990. "Numerical modeling of turbulent evaporating gas-droplet two-phase flows in an afterburner diffusor of turbo-fan jet engines." China.
@misc{etde_5779422,
title = {Numerical modeling of turbulent evaporating gas-droplet two-phase flows in an afterburner diffusor of turbo-fan jet engines}
author = {Zhou, Lixing, and Zhang, Jian}
abstractNote = {Two-dimensional turbulent evaporating gas-droplet two-phase flows in an afterburner diffusor of turbofan jet engines are simulated here by a k-epsilon turbulence model and a particle trajectory model. Comparison of predicted gas velocity and temperature distributions with experimental results for the cases without liquid spray shows good agreement. Gas-droplet two-phase flow predictions give plausible droplet trajectories, fuel-vapor concentration distribution, gas-phase velocity and temperature field in the presence of liquid droplets. One run of computation with this method is made for a particular afterburner. The results indicate that the location of the atomizers is not favorable to flame stabilization and combustion efficiency. The proposed numerical modeling can also be adopted for optimization design and performance evaluation of afterburner combustors of turbofan jet engines. 7 refs.}
journal = {Chinese Journal of Aeronautics; (China)}
volume = {3}
journal type = {AC}
place = {China}
year = {1990}
month = {Nov}
}