基于NACA0030的波纹状翼型气动特性探索

doi:10.13700/j.bh.1001-5965.2020.0135

北京航空航天大学学报 ›› 2021, Vol. 47 ›› Issue (6): 1138-1144.doi: 10.13700/j.bh.1001-5965.2020.0135

基于NACA0030的波纹状翼型气动特性探索

张庆^1,2, 叶正寅³

1. 西安航空学院飞行器学院, 西安 710077;
2. 南洋理工大学机械与航空工程学院, 新加坡 639798;
3. 西北工业大学航空学院, 西安 710072

收稿日期:2020-04-13 发布日期:2021-07-06
通讯作者: 叶正寅 E-mail:yezy@nwpu.edu.cn
基金资助:
国家“863”计划（2014AA7060201）；国家自然科学基金（11732013）；陕西省自然科学基础研究计划（2019JM-290）

Aerodynamic exploration for wavy airfoil based on NACA0030

ZHANG Qing^1,2, YE Zhengyin³

1. School of Aircraft, Xi'an Aeronautical University, Xi'an 710077, China;
2. School of Mechanical & Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore;
3. School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China

Received:2020-04-13 Published:2021-07-06
Supported by:
National High-tech Research and Development Program of China (2014AA7060201); National Natural Science Foundation of China (11732013); Natural Science Basic Research Program of Shaanxi (2019JM-290)

摘要/Abstract

摘要： 相对于光滑翼型，波纹状翼型的气动特性呈现出一些独特现象。为了深入探索这种布局的气动特点，在前期风洞试验的基础上，以NACA0030翼型为基础，设计了一组具有不同外形特征的波纹状翼型，开展了非定常数值模拟工作，详细研究了低雷诺数（Re=12×10⁴）流动情况下波纹状外形对流场涡流结构和总体气动特性的影响规律。计算结果表明：相对于光滑翼型，波纹状翼型流动的分离流现象更明显，升力和升力线斜率有明显下降，但推迟了失速现象。波纹状翼型表面越光顺，气动特性越接近于光滑翼型。虽然波纹状翼型的压差阻力大于光滑翼型，但是波纹状外形产生的回流可以减小摩擦阻力。

关键词: 波纹状翼型, 光滑翼型, 低雷诺数流动, 气动特性, 流场结构

Abstract: Compared with smooth airfoil, the aerodynamic characteristics of wavy airfoil exhibit some unique features. In order to further explore the aerodynamic characteristics of the wavy configuration, based on the previous wind tunnel tests, a group of wavy airfoils with different geometric shape modified from NACA0030 were designed and then unsteady numerical simulations were carried out in details to investigate the effect of waviness on the vortical structure in the flow field and overall aerodynamic characteristics in low Reynolds number (Re=12×10⁴) region. Final results show that, compared to the smooth airfoil, the separation flow for the wavy airfoil is more obvious, and the lift and its slope decrease significantly, but the stalling is delayed. The smoother the wavy surface is, the closer the aerodynamic characteristics are to the smooth airfoil. Although the pressure drag of the wavy wing is greater than that of the smooth airfoil, the recirculation generated in the corrugation can reduce the viscous drag.

Key words: wavy airfoil, smooth airfoil, low Reynolds number flow, aerodynamic characteristics, flow field structure

中图分类号:

V211.41⁺2

张庆, 叶正寅. 基于NACA0030的波纹状翼型气动特性探索[J]. 北京航空航天大学学报, 2021, 47(6): 1138-1144.

ZHANG Qing, YE Zhengyin. Aerodynamic exploration for wavy airfoil based on NACA0030[J]. Journal of Beijing University of Aeronautics and Astronautics, 2021, 47(6): 1138-1144.

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基于NACA0030的波纹状翼型气动特性探索

Aerodynamic exploration for wavy airfoil based on NACA0030

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