Analysis of the correction process for the initial field iteration calculation of the stability analysis program

Abstract

As the heart of aircraft, the performance requirements of aviation engines are increasing, and analyzing the aerodynamic stability of engines has become an essential part. The methods for analyzing the stability boundary of engines at home and abroad are also gradually improving. When using a domestic engine stability analysis program, it was found that the turbine drop pressure ratio changed during the calculation process, which was inconsistent with the initial given. This article focuses on this issue and analyzes the process of parameter correction during the calculation process by analyzing the parameter changes discovered during its use. This program ensures power balance and duct and bypass outlet static pressure balance. The calculation accuracy is improved through these correction processes.