Numerical study on the control of flow in the rudder-body junction region using High-energy jet array

IF 5 1区工程技术 Q1 ENGINEERING, AEROSPACE

Aerospace Science and Technology Pub Date : 2025-05-21 DOI:10.1016/j.ast.2025.110335

Yi Zhou, Zhenbing Luo, Qiang Liu, Yan Zhou, Wei Xie

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引用次数: 0

Abstract

The maneuverability of high-speed aircrafts in flight needs to be improved. However, conventional control methods for rudder deflection have disadvantages such as poor control effect and low control efficiency. In this paper, the ability of using high energy jet arrays to change the structure of the rudder plate flow field and enhance the control efficiency of the rudder is numerically simulated and analyzed. The high-energy jet arrays are arranged along the flow direction on the windward side of the rudder, which are the upstream high-energy jet array, the midstream high-energy jet array, and the downstream high-energy jet array. The control effects of three position high energy jet arrays were compared and analyzed. The results show that the vortex pair behind the upstream high-energy jet array is fully developed due to its proximity to the leading edge of the rudder, resulting in an increase in the area of the low-pressure region behind the exit of the jet, and that the pressure on the rudder varies significantly with time. The high energy jet arrays in the midstream and downstream do not cause significant periodic changes in the pressure on the windward side of the rudder, while the position close to the downstream allows the two controls to raise the area of the high-pressure region on the windward side of the rudder more and reduce the area of the low-pressure region caused by the vortex pair behind the jet. But with high-energy jet array control, jets close to the area of the plate create additional side forces on the surface of the plate. In this study, numerical simulations were used to analyze the effect of applying high-energy jet arrays in different flow direction positions to improve the effectiveness of high-speed aircraft rudders. In this paper, a new concept of using active flow control method to improve the control efficiency of high-speed aircrafts is proposed. These findings can provide a reference for future research on rudder efficiency of high-speed aircraft.

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高能射流阵列控制舵体结合部流动的数值研究

高速飞机的飞行机动性有待提高。然而，传统的舵偏转控制方法存在控制效果差、控制效率低等缺点。本文对利用高能射流阵列改变舵板流场结构，提高舵控制效率的能力进行了数值模拟和分析。在方向舵迎风侧沿流动方向布置高能射流阵列，分别为上游高能射流阵列、中游高能射流阵列和下游高能射流阵列。对比分析了三种位置高能射流阵列的控制效果。结果表明：上游高能射流阵列后涡对由于靠近方向舵前缘而得到充分发展，导致射流出口后低压区面积增大，方向舵压力随时间变化显著；中游和下游的高能射流阵列不会引起方向舵迎风侧压力的明显周期性变化，而靠近下游的位置使得两个控制可以更多地提高方向舵迎风侧高压区域的面积，减少由射流后涡对引起的低压区域的面积。但在高能射流阵列控制下，靠近板块区域的射流会在板块表面产生额外的侧力。本文采用数值模拟的方法，分析了在不同流动方向位置应用高能射流阵列对高速飞机方向舵效能的影响。本文提出了一种利用主动流控制方法提高高速飞机控制效率的新概念。研究结果可为今后高速飞机方向舵效率的研究提供参考。

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.