基于CFD的双岛结构对通用航母尾流气动特性的影响

IF 0.8 4区 工程技术 Q3 MULTIDISCIPLINARY SCIENCES
Ankit Nehra, Vijayakumar Rajagopalan
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引用次数: 0

摘要

技术的进步导致了航母顶层甲板设计中许多概念的演变,双岛概念是最新的进入者。航空母舰的钝体几何形状给飞行员带来了许多挑战,在甲板上着陆是最关键的。本研究的目的是承担一个计算调查的气动分析双岛GAC(通用航空母舰)的概念vis- à-vis其基础变体。本文采用垂直于气流方向的不同横向平面对双岛式GAC飞行甲板及其下游的气流进行了分析。随后,进行了一项参数研究,以了解两个岛屿的纵向平移对基线GAC位置的影响。结果表明,双岛的某些变体比单岛更有优势,其中一种变体可以帮助减少飞行员的工作量,从而使滑行道上的湍流减少68%。这些数据可以作为未来浮动平台设计和该领域进一步研究的催化剂。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of Twin Island Configuration on Airwake Aerodynamics over Generic Aircraft Carrier using CFD
The technological advancements have led to the evolution of numerous concepts in an aircraft carrier’s topdeck design, the twin island concept being the latest entrant. An aircraft carrier’s bluff body geometry presents many challenges to the pilot, landing on deck being the most critical. The present study aims to undertake a computational investigation of the aerodynamic analysis of a Twin Island GAC (Generic Aircraft Carrier) conceptualized vis- à-vis its base variant. The flow over the twin island GAC flight deck and downstream is analysed using various transverse planes perpendicular to the flow direction as detailed in the paper. Subsequently, a parametric study was undertaken for understanding the effects of longitudinal translations of the two islands with respect to the baseline GAC position. The results depict the advantage of certain variants of twin islands over a single island, and ~68 % reduction in turbulence is achieved along the glideslope by one of the variations which could aid in reducing pilot workload. The data can act as a catalyst for utilization and incorporation in future floating platform designs and further studies in this field.
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来源期刊
Defence Science Journal
Defence Science Journal 综合性期刊-综合性期刊
CiteScore
1.80
自引率
11.10%
发文量
69
审稿时长
7.5 months
期刊介绍: Defence Science Journal is a peer-reviewed, multidisciplinary research journal in the area of defence science and technology. Journal feature recent progresses made in the field of defence/military support system and new findings/breakthroughs, etc. Major subject fields covered include: aeronautics, armaments, combat vehicles and engineering, biomedical sciences, computer sciences, electronics, material sciences, missiles, naval systems, etc.
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