空气动力学学报2023，Vol.41Issue(11)：20-27,8.DOI:10.7638/kqdlxxb-2022.0158
基于RVSM运行需求的波纹度影响分析方法
Analysis method of the effects of skin waviness based on RVSM operation requirement
艾梦琪 1马玉敏 1张彦军2
作者信息
- 1. 航空工业第一飞机设计研究院,西安 710089
- 2. 航空工业第一飞机设计研究院,西安 710089||西北工业大学航空学院,西安 710072
- 折叠
摘要
Abstract
Skin waviness near the static pressure source affect the accuracy of altitude measurement and the airworthiness of the aircraft's RVSM operational capability.Therefore,it is necessary to evaluate the effect of small-scale skin waviness.A fast analysis method based on the small disturbance hypothesis and a numerical calculation method based on CFD were established to study the pressure effect of the waviness,and the methods were verified by the wind tunnel test data.The results show that the numerical calculation method can be used to evaluate and analyze the effects of skin waviness with high accuracy.According to the statistical analysis,the pressure deviation between the calculated value and the test value of 97.8%of the 900 pressure-measuring holes is within±0.002.The influence of pressure on skin waviness can be obtained accurately and quickly by the modified fast analysis method,which can be used as a rapid evaluation method for related engineering problems.关键词
波纹度/缩小垂直间隔/数值计算/小扰动假设Key words
skin waviness/reduced vertical separation minimum(RVSM)/numerical calculation/small disturbance hypothesis分类
航空航天引用本文复制引用
艾梦琪,马玉敏,张彦军..基于RVSM运行需求的波纹度影响分析方法[J].空气动力学学报,2023,41(11):20-27,8.
