Department News
Turbulence Simulation and Its Applications to Environmental Problems (이창훈 교수)
Seminar Date
2005-12-02
Author
권해선
Date
2005-11-29
Views
1980
1. 제 목 : Turbulence Simulation and Its Applications to Environmental Problems
2. 연 사 : 이창훈 교수 (연세대학교 기계공학부)
3. 일 시 : 2005년 12월 2일 (금) 오후 17:00
4. 장 소 :
서울대 신공학관(301동) 1512호 세미나실(화상강의로 진행)
한양대 공업센터 4층 세미나실
5. 내 용 :
Turbulence is ubiquitous, thus can be found everywhere. Understanding the
fundamental mechanism of turbulence would be greatly helpful in many areas of
science and engineering applications. One very powerful tool for investigation of
turbulence is numerical simulation using recent supercomputer. Turbulence, a
challenging problem for a century, now begins to reveal its secrets very slowly.
Particularly, among a lot of fundamental issues of turbulence, behavior of fluid particle acceleration shows a very interesting phenomena. Acceleration in turbulence is quite intermittent, which means that instantaneous acceleration about more than 100 times larger than root-mean-squared value is frequently observed. Recent experimental and numerical studies revealed that this intermittent behavior is closely associated with vortical structures which is a coherent rotating motion in the form of filament. This kind of behavior is very important in the prediction of laden solid particle dispersion as well as gas dispersion. Based on such a fundamental observation and relevant derivations, a simple numerical model for prediction of air pollution or particle dispersion can be formulated. This model can be used for real-time prediction of pollutant dispersion in the environmental emergency response system. This clearly shows a good example of fundamental research which can be directly applied to real engineering problems.
6. 약 력 :
1981.03-1985.02 서울대학교 기계공학과 학사
1985.03-1987.02 서울대학교 기계공학과 석사
1988.09-1993.05 UC Berkeley 기계공학과 Ph.D.
1993.06-1994.09 UC Berkeley Postdoctoral Researcher
1994.10-1997.08 UCLA Postdoctoral Researcher
1997.09-2000.08 서울시립대학교 정밀기계공학과 조교수
2000.09-2004.08 연세대학교 기계공학부 부교수
2004.09-현재 연세대학교 기계공학부 교수
7. 문 의 : 기계항공공학부 이정훈 교수 (☏880-9104) / BK21 기계분야사업단 행정실 (☏880-7132)
8. 기계분야 박사과정 세미나 수업 수강생 여러분들은 필히 참석해 주시고,
기타 관심 있는 분들의 많은 참여를 부탁 드립니다.
2. 연 사 : 이창훈 교수 (연세대학교 기계공학부)
3. 일 시 : 2005년 12월 2일 (금) 오후 17:00
4. 장 소 :
서울대 신공학관(301동) 1512호 세미나실(화상강의로 진행)
한양대 공업센터 4층 세미나실
5. 내 용 :
Turbulence is ubiquitous, thus can be found everywhere. Understanding the
fundamental mechanism of turbulence would be greatly helpful in many areas of
science and engineering applications. One very powerful tool for investigation of
turbulence is numerical simulation using recent supercomputer. Turbulence, a
challenging problem for a century, now begins to reveal its secrets very slowly.
Particularly, among a lot of fundamental issues of turbulence, behavior of fluid particle acceleration shows a very interesting phenomena. Acceleration in turbulence is quite intermittent, which means that instantaneous acceleration about more than 100 times larger than root-mean-squared value is frequently observed. Recent experimental and numerical studies revealed that this intermittent behavior is closely associated with vortical structures which is a coherent rotating motion in the form of filament. This kind of behavior is very important in the prediction of laden solid particle dispersion as well as gas dispersion. Based on such a fundamental observation and relevant derivations, a simple numerical model for prediction of air pollution or particle dispersion can be formulated. This model can be used for real-time prediction of pollutant dispersion in the environmental emergency response system. This clearly shows a good example of fundamental research which can be directly applied to real engineering problems.
6. 약 력 :
1981.03-1985.02 서울대학교 기계공학과 학사
1985.03-1987.02 서울대학교 기계공학과 석사
1988.09-1993.05 UC Berkeley 기계공학과 Ph.D.
1993.06-1994.09 UC Berkeley Postdoctoral Researcher
1994.10-1997.08 UCLA Postdoctoral Researcher
1997.09-2000.08 서울시립대학교 정밀기계공학과 조교수
2000.09-2004.08 연세대학교 기계공학부 부교수
2004.09-현재 연세대학교 기계공학부 교수
7. 문 의 : 기계항공공학부 이정훈 교수 (☏880-9104) / BK21 기계분야사업단 행정실 (☏880-7132)
8. 기계분야 박사과정 세미나 수업 수강생 여러분들은 필히 참석해 주시고,
기타 관심 있는 분들의 많은 참여를 부탁 드립니다.
