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ICAYS 2018

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Keyote Lectures

         

Opening Ceremony Report 1


Title:
Time:
Place:
Reporter:Jerzy Komorowski
Brief Introduction to the Report:  

Brief introduction to the reporter: Click here

         

         

Opening Ceremony Report 2


Title:

Time:
Place:
Reporter:Cranfield University ,Shijun Guo  

Brief introduction to the Report:

Brief introduction to the reporter: Click here
 

Mini Symposium Report 1

         


Title: The Marvel and Beauty of Mathematics and the Character of Physical Laws with Application to Engineering Problems

Time:September 15th-16th, 2018
Place:

Reporter:Tamkang University,Professor Chao-Kang Feng

Brief Introduction to the Report:

The purpose of this talkis to present an integrated study of mathematics and physics which are important to Engineering Analysis.

In this talk, it contains real-world applications, and great many illustrations to help students realize important concepts and apply the mathematical models to engineering problems. Mathematical results and physical interpretations are also given to some interesting and inspiring examples arising from fluid mechanics, aerodynamics, solid mechanics and vibrations.

Brief introduction to the reporter: Click here



                         

           

Mini Symposium Report 2


Title:Nonlinear time-series analysis of thermoacoustic oscillations in a solid rocket motor  
Time:
Place:
Reporter:The Hong Kong University of Science and Technology, Larry Li
Brief introduction to the report:
Recent applications of nonlinear time-series analysis have shown that thermoacoustic systems can exhibit self-excited behavior more complex than simple period-1 oscillations. Such behavior has been comprehensively explored in the Rijke tube and in gas turbines, but less so in rocket engines. In this experimental study, we examine the thermoacoustic oscillations of a full-scale solid rocket motor (SRM) by means of nonlinear time-series analysis, namely phase portraits, Poincaré maps and recurrence plots. In contrast to conventional linear tools based on the Fourier transform, these nonlinear tools can enable unambiguous identification of different dynamical states, such as period-k states, quasiperiodicity and chaos. In this study, these tools reveal limit-cycle dynamics not reported before in an SRM, such as transient mode switching between unstable attractors in phase space, with transitions between period-2 and period-3 states. In summary, this study constitutes the first experimental application of nonlinear time-series analysis to a full-scale SRM, demonstrating an alternative to conventional linear tools for the characterization of nonlinear thermoacoustic oscillations in rocket engines

Brief introduction to the reporter: Click here

                                                                                               

         

Mini Symposium Report 3


Title: From Red Cells to Super Lubrication

Time:
Place:
Reporter:Villanova University Qianghong Wu

Brief introduction to the report:
Biological scientists have wondered, since the motion of red cells was first observed in capillaries, how a red cell, with an 8µm diameter, can move with so little friction in tightly fitting microvessels, only 5-6 µm in diameter, and survive 105 passages through microcirculation during a typical lifetime of 120 days without being damaged or undergoing hemolysis. Recent studies (Feng and Weinbaum, JFM, 2000; Weinbaum et al., PNAS, 2003; Wu et al., PRL, 2004) attributed this frictionless motion to the dramatically enhanced hydrodynamic lifting force generated inside the endothelial glycocalyx layer (EGL), a soft porous layer that covers the inner surfaces of our capillaries, as a red blood cell glides over it. In this talk, I will report a systematic, experimental and theoretical approach to examine the lift generation inside a compressible porous media. Its diverse applications, from red cells moving in a tightly fitting capillary, to human skiing or snowboarding, to a next generation high speed train that glides on a soft porous track made of goose down pillow will be discussed as examples. These applications are chosen for their novelty, but the basic concepts could have important application in the design of soft porous bearings with greatly increased lubrication pressures and long life.  

Brief introduction to the reporter: Click here


         

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