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Bistability and Hysteresis in a Nonlinear Dynamic Model of Shock Motion

机译:冲击运动的非线性动力学模型中的双稳态和迟滞

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摘要

The study is motivated by a review of experimental and numerical evidences for the occurrence of bistability and hysteresis in supersonic inlets. By retaining the essential strongly nonlinear behaviors and the dominant system dynamics, a low-order model of the time-dependent behaviors of shock motion is developed to describe the bistability and hysteresis behaviors of shock motion in a supersonic inlet. Assumptions of inviscid and quasi-one-dimensional flow are invoked to ensure an analytic description of the dynamic process. Comparisons between the low-order model and unsteady computational fluid dynamics simulation results show the low-order model has the capability of qualitatively describing the bistability and hysteresis behaviors of shock motion.
机译:这项研究是通过对超声速进气道中双稳性和滞后现象的实验和数值证据进行回顾来推动的。通过保留基本的强非线性行为和支配的系统动力学,开发了冲击运动随时间变化的行为的低阶模型,以描述超音速入口中冲击运动的双稳态和滞后行为。调用无粘性和准一维流动的假设以确保对动态过程进行解析描述。低阶模型与非稳态流体动力学仿真结果的比较表明,低阶模型具有定性描述冲击运动的双稳态和滞后行为的能力。

著录项

  • 来源
    《Journal of Aircraft》 |2014年第5期|1373-1379|共7页
  • 作者

    Cui Tao; Wang Yong; Yu Daren;

  • 作者单位

    Harbin Inst Technol, Sch Energy Sci & Engn, Harbin 150001, Heilongjiang, Peoples R China;

    Peking Univ, Sch Energy Sci & Engn, Beijing 100871, Peoples R China;

    Harbin Inst Technol, Sch Energy Sci & Engn, Harbin 150001, Heilongjiang, Peoples R China;

  • 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

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