题目：Study of Energy and Propulsion Systems Using Novel Laser Diagnostics（激光诊断技术在能源动力研究中的应用）

主讲人：马林博士

Department of Aerospace and Ocean Mechanical Engineering

Department of Mechanical Engineering Affiliate

Virginia Tech, Blacksburg, Virginia

时间：2012年5月30日（星期三）10：00

地点：系馆报告厅

Lin Ma is a senior member of the AIAA, and member of the OSA and SAE. He was a recipient of the NSF CAREER award (2009) for his project entitled "Resolving Turbulence-Chemistry Interaction Using Novel Laser Diagnostics".

EDUCATION EXPERIENCE

Ph.D., Stanford University, 2006, Mechanical Engineering

M.S., Stanford University, 2001, Mechanical Engineering

B.S., Tsinghua University, 2000, Thermal Engineering

PROFESSIONAL EXPERIENCE

Virginia Tech, 2011 – present, Associate Professor

Clemson University, 2006 – 2011, Assistant Professor

Stanford University, 2000 – 2006, Research Assistant

Research Topics:

Laser diagnostics for multiphase flows

Rapid and reliable measurements of critical properties in multiphase flows (e.g., temperature, vapor concentration, and droplets/particulates density) are highly desirable, and yet challenging, in many scientific and industrial applications. This research develops novel imaging techniques to address such important measurement needs. These techniques use wavelength-multiplexed absorption and photodissociation spectroscopy to overcome the challenges.

Tomographic imaging based on hyperspectral spectroscopy

This research seeks to significantly enhance the performance of tomography techniques using hyperspectral absorption spectroscopy. Traditional tomography techniques usually use a few wavelengths, which results in cumbersome experimental requirements and limited measurement capability. This research exploits the spectral information content enabled by hyperspectral lasers to reduce experimental complexity, improve imaging accuracy, and enable simultaneous monitoring of multiple properties (e.g., concentration and temperature).

Laser diagnostics for fundamental combustion research

Laser diagnostics are being developed to study the complicated physics of combustion at a fundamental level. For example, a technique based on photodissociation spectroscopy is developed to measure two-dimensional mixture fraction, a solely needed measurement in the research of turbulent combustion.