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113/11/7 (四) 大阪公立大學機械系 須賀一彦 (Kazuhiko SUGA) 教授

演講時間：113/11/7（四）15:30-17:00

 

演講地點：國立清華大學工程一館107演講廳

 

演講者：須賀一彦(Kazuhiko SUGA)教授（大阪公立大學機械系教授）

 

講題：LBM for Turbulence and Turbulent Heat Transfer in Complex Flows

 

演講摘要：

This seminar addresses the limitations of conventional lattice Boltzmann methods (LBMs) and introduces alternative, reliable LBM schemes for turbulence simulations. These include the D3Q27 multi-relaxation time (MRT) LBM, the regularized D3Q19 thermal LBM, and the imbalance correction (iBC) local mesh refinement methods developed by our group. After showcasing the enhanced simulation accuracy of these schemes, several DNS/LES studies on turbulence and turbulent heat transfer over complex surfaces (rough and/or porous walls) are presented. The results illustrate how turbulence and turbulent heat transfer are influenced by wall roughness and/or permeability through the Kelvin-Helmholtz instability.

113/10/31 (四) 中原大學電機系特聘教授 張政元教授 (因颱風來襲，本次演講取消)

演講時間：113/10/31（四）15:30-17:00

演講地點：國立清華大學工程一館107演講廳

演講者：張政元 教授（中原大學電機系特聘教授 張政元教授）

講題：主動噪音控制及其應用開發契機 (Recent Applications and Challenges on Active Noise Control

113/11/12（二）TAMU 航太系 Prof. Mohammad Naraghi

演講時間：113/11/12（二）13:20-14:20

演講地點：國立清華大學工程一館301會議室

演講者： Prof. Mohammad Naraghi (Associate Department Head, Department of Aerospace Engineering, Texas A and M university)

講題：Challenges and Potential Remedies for Commercial All-Electric Aircraft: Case study for the 21st century USA
 

113/10/24（四）國立清華大學材料科學工程學系 葉均蔚教授

演講時間：113/10/24（四）15:30-17:00

 

演講地點：國立清華大學工程一館107演講廳

 

演講者：葉均蔚 教授（國立清華大學材料科學工程學系清華講座教授）

 

講題：改寫材料史的成分大發現（Great compositional discovery in materials history）

 

演講摘要：

 

主講人顛覆傳統以一個金屬元素為主的合金配方概念，1995年起開創由多個主元素所構成的高熵合金。他不但為此配方觀念下的材料命名及定義，更且加以論述及驗證。他提出高熵合金的理論基礎：高熵、晶格扭曲、緩慢擴散及雞尾酒四項核心效應，證明適當的合金配方可產生優越的特性，進而突破傳統合金應用上的瓶頸。他更將高熵觀念由合金擴展到陶瓷、高分子及複合材料，產生了包羅萬象的中熵及高熵材料，涵蓋週期表的所有可能配方。他帶動全球高熵論文指數性的成長，影響廣大且深遠。近年來他更帶領團隊將高熵材料科技產業化，製造高熵材料以提升國內外產業。

 

The speaker subverted the traditional concept of alloy compositions based on one principal metal element. Since 1995, he has created high-entropy alloys composed of multiple principal elements. He not only named and defined the materials under this composition concept, but also discussed and verified them. He proposed the theoretical basis of high-entropy alloys with four core effects: high entropy, lattice distortion, slow diffusion and cocktail, proving that appropriate alloy design can overcome the bottlenecks of traditional alloys in applications. He also extended the concept of high entropy from alloys to ceramics, polymers and composite materials, creating medium-entropy and high-entropy materials, covering all possible compositions of the periodic table. He has driven the exponential growth of global high-entropy papers and has a broad and far-reaching influence. In recent years, he has led his team to industrialize high-entropy material technology to enhance domestic and foreign industries.

113/10/17（四）國立成功大學航空太空工程學系 詹劭勳教授

演講時間：113/10/17（四）15:30-17:00

演講地點：國立清華大學工程一館107演講廳

演講者：詹劭勳 教授（國立成功大學航空太空工程學系教授/系主任）

講題：導航系統設計—航空與日常生活（Navigation System Design—Aviation and Everyday life）