報告人：林光一教授
Speaker: Prof. A. Koichi Hayashi
主持人：任兆欣助理教授
Host:Asst. Prof. Zhaoxin Ren
時間：2018年09月07日（星期五）上午9:30-11:30
Time:9:30am-11:30am, Sep.7, 2018
地點：長安校區動力與能源學院大樓225會議室
Place: Conference room 225, School of Power and Energy
主題：用于數值分析和納米鋁/O2爆震的自適應網格細化方法
Topic: AMR method for numerical analysis and Nano Aluminum/O2 detonation
內容簡介:
用于科學和工程問題的數值分析的規模越來越大。但是這種數值計算遇到了時間和成本的問題。為此，自1990年末以來開發了自適應網格細化（AMR）技術。早期AMR用于空間和大氣問題，但最近的精確計算需要AMR方法用于小型分析，例如汽車發動機。本講座將提供AMR的本質解釋及其在燃燒射流問題中的應用。氣固兩相流動與氣液兩相流動完全不同。作為固相爆震問題的一個例子，將會展示鋁/O2爆震問題。特別是當我們處理納米尺寸的顆粒時，我們必須考慮這種納米尺寸的問題。講座將包括解釋這樣的問題進而展示納米鋁的爆震特征。
Introduction:
Numerical analysis for science and engineering problem is applied for a larger and larger scale. But such numerical calculation hits a problem of time and cost. To this end adaptive mesh refinement (AMR) technique has been developed since late 1990. In the early years AMR is used for space and atmospheric problems, but the recent accurate computation demands AMR method for small size analysis such as automobile engines. The present talk will provide the essence of AMR and its application to a combustive jet flow problem. Soli-gas two-phase flow is, in quite different from liquid-gas two-phase flow. As an example of solid-phase detonation problem, Aluminum/O2 detonation problem will be presented. Especially when we deals with nano-size particles, we must consider such nano-size problem. The talk will include to explain such problem to show the feature of nano-size aluminum detonation.
報告人簡介
林光一，日本青山學院大學機械工程系教授。加州大學伯克利分校碩士，科羅拉多大學博爾得分校博士。林光一教授是爆震研究的國際領導者，最新的工作包括圓管和矩形管中爆震結構的三維詳細數值計算，以及三維旋轉爆震。現任國際激波會議咨詢委員會委員，日本爆炸學會理事，《Proceedings of Combustion Institute》編委等。曾任日本爆震協會主席，《Shock Waves》編委等。曾獲國際爆炸動力學和反應系統最高榮譽A. K. Oppenheim獎，波蘭科學院Wactaw Cybulski獎章等。
Speaker’s Biography
A. Koichi Hayashiisthe professor in Aoyama Gakuin University. He obtained his M.Sc. in UC Berkeley and Ph.D. in University of Colorado, Boulder.Hehas been an international leader of detonation study. The most recent work includes three-dimensional detailed numerical calculation of detonation structures intubesandspinning detonations. He is the international advisory committee member of Int. Symp. on Shock Waves, board member of Japan Explosion Society, editorial board member ofProceedings of Combustion Institute, et al. He was the president of Detonation Society in Japan, editorial board member ofShock Waves, et al. He was awarded the A.K. Oppenheim Award from IDERS, Wactaw Cybulski Medal from Poland Academy of Science, et al.
