国际应用力学中心学术系列讲座: 美国工程院院士Dowell教授
讲座名称：
国际应用力学中心学术系列讲座: 美国工程院院士Dowell教授
讲座时间：
2014-05-23
讲座人：
E.H. Dowell
形式：
校区：
兴庆校区
实践学分：
讲座内容：
国际应用力学中心学术系列讲座: 美国工程院院士Dowell教授
美国工程院院士，DUKE大学机械系E.H. Dowell教授应国际应用力学中心及航天学院的邀请来西安交大作报告.
报告人：Prof. Earl H., Duke University Dowell
报告题目: NONLINEAR DYNAMICS OF FLUID AND STRUCTURAL SYSTEMS
时间：2014年5月23日（星期五）10:30-11:30
地点：教一楼南二层第二会议室
报告主持：刘子顺教授
ABSTRACT:
NONLINEAR DYNAMICS OF FLUID AND STRUCTURAL SYSTEMS
Fluid and structural systems and their possible interaction have a rich array of behavior being susceptible to instabilities and thus the generation of limit cycle oscillations and on occasion chaotic response. In this talk we will touch on several example including solar sails, high performance aircraft and aerodynamic decelerators from space into planetary atmospheres. Much of the talk will be devoted to the large and small scale oscillations that may appear in fluid flows and thus excite structural motion. The large scale motions include buffet in aircraft and non-synchronous vibration in jet engines, the classic case being the Von Karman vortex street. The small scale motions have as their most well known example the transition from laminar to turbulent flow. In all of the above cases a combination of theory, computation and experiment is used to understand the nonlinear dynamics of such systems.
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