高焓电弧风洞等离子体参数测量

曾徽; 闫宪翔; 陈智铭; 苗文博; 周靖云

doi:10.7638/kqdlxxb-2025.0114

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高焓电弧风洞等离子体参数测量

研究专栏——高速飞行“新热障”问题研究进展（第二十七届中国科协年会学术论文专题） | 更新时间：2026-05-28

- 高焓电弧风洞等离子体参数测量
- Measurement of plasma parameters in high-enthalpy arc-heated wind tunnel
- 空气动力学学报 2025年43卷第7期页码：108-117
- 作者机构：
  
  中国航天空气动力技术研究院电弧等离子应用装备北京市重点实验室,北京,100074
- 作者简介：
  
  曾徽（1989—），男，工学博士，研究员，研究方向：气动热试验与高焓流场诊断. E-mail：zenghuikeda@outlook.com
  周靖云*，高级工程师，研究方向：高温非平衡流动及气动热防护研究. E-mail：jy_zhou@zju.edu.cn
- 基金信息：
  
  国家重点研发计划（2024YFA1612300）
- DOI：10.7638/kqdlxxb-2025.0114
  中图分类号： V556.4
- 纸质出版：2025
- 稿件说明：
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曾徽, 闫宪翔, 陈智铭, 等. 高焓电弧风洞等离子体参数测量[J]. 空气动力学学报, 2025, 43(7): 108−117.

ZENG Hui, YAN Xianxiang, CHEN Zhiming, et al. Measurement of plasma parameters in high-enthalpy arc-heated wind tunnel[J]. 2025, 43(7): 108-117.
曾徽, 闫宪翔, 陈智铭, 等. 高焓电弧风洞等离子体参数测量[J]. 空气动力学学报, 2025, 43(7): 108−117. DOI： 10.7638/kqdlxxb-2025.0114

ZENG Hui, YAN Xianxiang, CHEN Zhiming, et al. Measurement of plasma parameters in high-enthalpy arc-heated wind tunnel[J]. 2025, 43(7): 108-117. DOI： 10.7638/kqdlxxb-2025.0114.

摘要

地面试验是开展等离子体流场特性表征的重要手段，针对高焓流场等离子体参数辨识的需求，在电弧风洞开展了典型流场等离子体参数测量研究。利用带攻角钝楔平板模型模拟飞行器大面积区域流场，采用静电探针诊断技术，结合电动扫描技术进行了钝楔模型流场电子密度的空间分布测量，同时使用数值方法开展了对应状态的仿真模拟，并对两者进行了对比验证。研究发现：对于当前风洞条件，矩形喷管

向80 mm厚度核心区的等离子体参数基本保持均匀稳定，在靠近喷管壁面的两侧边缘位置受边界层影响电子密度明显衰减。本文所采用的探针测量方案对于电子密度测试的影响较小：相对高电子密度（10

–3

）工况电子密度实测值与计算值吻合良好，偏差小于0.5个数量级；低电子密度（10

–3

）工况等离子体电子密度实测值显著高于计算值，偏差在0.5～1个量级，初步分析认为电极烧蚀带来的铜污染效应是重要影响因素。本研究为飞行器近壁面等离子体参数测量提供了有效验证手段。

Abstract

Ground-based testing represents a critical method for plasma flow field characterization. To address the requirements for plasma parameter identification in high-enthalpy flows

this study performed experimental measurements of typical plasma parameters in an arc-heated wind tunnel. A blunt wedge flat-plate model with angle of attack was used to simulate spacecraft flow fields over large surface areas. The spatial distribution of electron density in the wedge model flow field was measured using electrostatic probe diagno

stics combined with motorized scanning technology

while corresponding numerical simulations were conducted for comparison and validation. The investigation revealed that under current wind tunnel conditions

plasma parameters remained essentially uniform and stable within the 80 mm thick core region along the

-direction of the rectangular nozzle. However

electron density showed significant attenuation near the nozzle sidewalls due to boundary layer effects. The employed probe measurement scheme demonstrated minimal influence on electron density detection. For relatively high electron density conditions (～10

–

)

measured values agreed well with simulations

showing deviations less than 0.5 orders of magnitude. In contrast

under low electron density conditions (～10

–

)

measured values significantly exceeded computational results by 0.5–1 orders of magnitude. Preliminary analysis indicated that copper contamination from electrode ablation served as a major contributing factor for this discrepancy. This study provides an effective validation method for near-wall plasma parameter measurements in aircraft applications.

关键词

Keywords

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