四棱锥纹影技术及其在矢量喷流测量中的应用

张峻篈; 王涛

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四棱锥纹影技术及其在矢量喷流测量中的应用

光学传感与测量 | 更新时间：2026-01-05

- 四棱锥纹影技术及其在矢量喷流测量中的应用
- Application of pyramid prism schlieren technique in vector jet measurement
- 光学技术 2025年51卷第6期页码：716-723
- 作者机构：
  
  火箭军工程大学作战与保障学院，陕西西安 710025
- 作者简介：
  
  张峻篈（1988— ），男，工程师，硕士，从事发动机推力矢量装置流场特性先进光学测试技术研究。xiaofenglunwen@126.com
  1044816795@qq.com
- 基金信息：
- DOI：
  中图分类号： V211.7
- 收稿：2025-06-18，
  
  修回：2025-07-28，
  
  纸质出版：2025-11-20
- 稿件说明：
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张峻篈,王涛.四棱锥纹影技术及其在矢量喷流测量中的应用[J].光学技术,2025,51(06):716-723.

ZHANG Junfeng,WANG Tao.Application of pyramid prism schlieren technique in vector jet measurement[J].OPTICAL TECHNIQUE,2025,51(06):716-723.
张峻篈,王涛.四棱锥纹影技术及其在矢量喷流测量中的应用[J].光学技术,2025,51(06):716-723. DOI：

ZHANG Junfeng,WANG Tao.Application of pyramid prism schlieren technique in vector jet measurement[J].OPTICAL TECHNIQUE,2025,51(06):716-723. DOI：

摘要

针对矢量喷流的研究需求，研发了四棱锥纹影技术。技术通过优化光路、光源以及成像系统，并结合高效算法处理，实现了矢量喷流流场的高灵敏度、高分辨率测量。技术以四棱锥结构替代传统纹影刀口，通过分光、成像与波前重构的方法实现流场密度测量，并结合互相关算法同步获取流场速度。针对传统激光光源的干涉问题，采用多序列脉冲激光器作为光源，经特殊匀化处理后，有效消除激光散斑与干涉环，获取清晰的纹影图像。在矢量喷流测量中，技术可精确捕捉边界层转捩现象，全面揭示高速边界层的细节信息与流动结构特征，为喷流特性分析和优化设计提供重要实验依据。

Abstract

In response to the research demands for vector jet analysis

a pyramid schlieren technique was developed in this study. By optimizing the designs of the optical path

light source

and imaging system

and integrating highly efficient algorithmic processing

this technique achieves highly sensitive and high-resolution measurement of the vector jet flow field. The technique replaces the traditional knife-edge with a tetrapyramid structure

and measures the flow field density via beam splitting

imaging

and wavefront reconstruction methods

and synchronously obtains the flow field velocity by using the cross-correlation algorithm. To address the interference problems associated with traditional laser sources

a multi-sequence pulsed laser is adopted as the light source. After undergoing special homogenization treatment

laser speckles and interference rings are effectively eliminated

enabling the acquisition of clear schlieren images. In vector jet measurement

this technique can accurately capture the boundary layer transition phenomenon

comprehensively reveal the detailed information and flow structure characteristics of high-speed boundary layers

and provide important experimental bases for jet characteristics analysis and optimization design.

关键词

Keywords

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