Numerical investigation of vortex dynamics control in the delta wing using dual synthetic jets

IF 5 1区工程技术 Q1 ENGINEERING, AEROSPACE

Aerospace Science and Technology Pub Date : 2025-05-26 DOI:10.1016/j.ast.2025.110369

Hao Wang, Zhenbing Luo, Xiong Deng, Yi Deng

引用次数: 0

Abstract

By implementing dual synthetic jets (DSJ) control on a slender delta wing, the leading-edge vortex (LEV) is effectively managed, resulting in substantial modifications to the flow field structure on the upper surface. The co-rotating acceleration generated by the DSJ significantly retracts the LEV and reduces its rotational radius. This process also leads to a significant optimization of the flow topology in the breakdown region of the baseline flow, effectively eliminating unstable spiral points. Furthermore, the axial velocity of the vortex is modified, delaying the breakdown point and extending the high-speed flow path by 22 % of the chord length. Despite the high-frequency, periodic nature of the DSJ, the vortex axis position remains stable, with minimal fluctuations, ensuring overall vortex stability. Additionally, the frequency characteristics of the vortex core are improved, exhibiting a shift toward higher frequencies.

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双合成射流控制三角翼涡动力学的数值研究

通过在细长三角翼上实施双合成射流（DSJ）控制，有效地控制了前缘涡（LEV），从而大大改变了上表面的流场结构。DSJ产生的同向旋转加速度使LEV收缩并减小其旋转半径。该过程还导致基线流击穿区域的流动拓扑得到显著优化，有效地消除了不稳定的螺旋点。此外，对涡旋的轴向速度进行了修正，延迟了击穿点，并将高速流道延长了22%的弦长。尽管DSJ具有高频、周期性的特性，但涡轴位置保持稳定，波动最小，确保了整体涡的稳定性。此外，涡旋核的频率特性得到了改善，表现出向更高频率的偏移。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Aerospace Science and Technology 工程技术-工程：宇航

CiteScore

10.30

自引率

28.60%

发文量

654

审稿时长

54 days

期刊介绍： Aerospace Science and Technology publishes articles of outstanding scientific quality. Each article is reviewed by two referees. The journal welcomes papers from a wide range of countries. This journal publishes original papers, review articles and short communications related to all fields of aerospace research, fundamental and applied, potential applications of which are clearly related to: • The design and the manufacture of aircraft, helicopters, missiles, launchers and satellites • The control of their environment • The study of various systems they are involved in, as supports or as targets. Authors are invited to submit papers on new advances in the following topics to aerospace applications: • Fluid dynamics • Energetics and propulsion • Materials and structures • Flight mechanics • Navigation, guidance and control • Acoustics • Optics • Electromagnetism and radar • Signal and image processing • Information processing • Data fusion • Decision aid • Human behaviour • Robotics and intelligent systems • Complex system engineering. Etc.