基于火焰体积模型的航空发动机燃烧室NO_(X)排放预测方法  

Efficient Prediction Method of Turboprop Engine Combustor NO_(X)Emissions Based on Flame Volume Model

作　　者：朱明军 刘禹 陈敏敏 ZHU Mingjun;LIU Yu;CHEN Minmin(Combustion Chamber Research Department,Hunan Power Machinery Research Institute,China Aerospace Development Corporation,Zhuzhou Hunan 412002)

机构地区：[1]中国航发湖南动力机械研究所燃烧室研究部,湖南株洲412002

出　　处：《中国科技纵横》2024年第9期34-36,共3页China Science & Technology Overview

基　　金：国家科技重大专项(2017-Ⅲ-0006-0031)支持。

摘　　要：本文采用数值模拟与污染排放半经验模型相结合的方法,以新定义的无量纲火焰体积作为新的特征参数,以数值模拟结果作为火焰体积模型的输入,引用、推导并新建了适用于高效预测燃烧室NO_(X)排放的火焰体积模型,运用该模型对某直流燃烧室的NO_(X)排放性能进行了快速预测。验证结果表明,采用火焰体积模型计算的EINO_(X)相对误差最大为8.90%。The flame volume model of predicting combustor NO_(X)is established,the model integrated the numerical simulation and semi-empirical model for emissions.Besides,a new characteristic parameter is defined as the dimensionless flame volume.In this case,some results which come from numerical simulation could be used as the inputs of the flame volume model.The flame volume model shows that the prediction error of combustor NO_(X)emissions is less than 8.90%.

关 键 词：火焰体积模型 污染排放 NO_(X)预测 燃烧室 

分 类 号：V231.2[航空宇航科学与技术—航空宇航推进理论与工程]