CORE
🇺🇦
make metadata, not war
Services
Services overview
Explore all CORE services
Access to raw data
API
Dataset
FastSync
Content discovery
Recommender
Discovery
OAI identifiers
OAI Resolver
Managing content
Dashboard
Bespoke contracts
Consultancy services
Support us
Support us
Membership
Sponsorship
Community governance
Advisory Board
Board of supporters
Research network
About
About us
Our mission
Team
Blog
FAQs
Contact us
激光聚焦纹影测速技术初步研究
Authors
李拓
连欢
陈池
Publication date
19 November 2022
Publisher
Doi
Abstract
压力皮托管和热线风速等侵入式流场速度测量技术在超声速测量过程中会显著影响流场特征。粒子图像测速技术为非侵入流场测试技术,但需要播撒示踪粒子,而示踪粒子在大梯度流场条件下存在跟随性问题且可能影响反应流场的化学反应路径。因此,无示踪粒子的纹影测速技术在高超声速反应流动研究中应用具有较大优势和潜力。本文针对二维聚焦纹影测速技术,搭建了激光聚焦纹影光路系统,提出了使用积分球作为纹影光源的方法,提高了聚焦纹影的光源均匀性并有效降低了相干噪声;验证了通过光绘菲林技术制作刀口栅和光源栅,可满足对刀口栅和光源栅微米量级加工精度需求;最后总结推导了适用聚焦纹影的投影运动光流方程
Similar works
Full text
Available Versions
Institute Of Mechanics,Chinese Academy of Sciences
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:dspace.imech.ac.cn:311007/...
Last time updated on 27/04/2023