Assessment of transition regimes in a dual-bell nozzle and possibility of active fluidic control

Zmijanovic Vladeta; Leger Luc; Sellam Mohamed; Chpoun Amer

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Assessment of transition regimes in a dual-bell nozzle and possibility of active fluidic control

机译：评估双钟形喷嘴中的过渡状态以及主动流体控制的可能性

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Dual-bell axisymmetric propulsive nozzle, as the most prominent altitude compensating nozzle concept has been investigated for transition modes and effects. Experimental and numerical investigations show that dual-bell nozzle can be very effective for desired large envelope launcher stage trajectories. Transition regimes are studied in the high altitude simulation wind-tunnel and supported by the numerical simulations. Analysis of the employed diagnostics shows an existing particular hysteresis between the transitioning modes and pinpoints to possibilities to control the early transition. Further numerical investigation on active flow control indicates the promising potentials of the proposed fluidic injection system. (C) 2018 Elsevier Masson SAS. All rights reserved.

机译：双铃轴对称推进喷嘴，作为最突出的高度补偿喷嘴概念，已针对过渡模式和效果进行了研究。实验和数值研究表明，双钟形喷嘴对于所需的大包络发射器级轨迹可能非常有效。在高空模拟风洞中研究了过渡状态，并得到了数值模拟的支持。对所用诊断程序的分析显示，过渡模式之间存在特定的滞后现象，并指出了控制早期过渡的可能性。主动流动控制的进一步数值研究表明，所提出的流体注入系统具有广阔的前景。（C）2018 Elsevier Masson SAS。版权所有。

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来源
《Aerospace science and technology》 |2018年第11期|1-8|共8页
作者
Zmijanovic Vladeta; Leger Luc; Sellam Mohamed; Chpoun Amer;
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作者单位

CNRS, Inst ICARE, Orleans, France;

CNRS, Inst ICARE, Orleans, France;

Univ Paris Saclay, Univ Evry, LMEE, Evry, France;

Univ Paris Saclay, Univ Evry, LMEE, Evry, France;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Dual-bell nozzle; Transition; Flow regimes; Hysteresis; Active flow control; Secondary fluidic injection;

机译：双钟形喷嘴;过渡;流动方式;滞后;主动流量控制;二次流体注入;

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Assessment of transition regimes in a dual-bell nozzle and possibility of active fluidic control

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