“High Speed and Multidimensional Combustion Diagnostics”

Lin Ma, Department of Aerospace and Ocean Engineering, Virginia Tech

This talk describes our efforts to enable high speed and multidimensional measurements in turbulent combustion systems, which have been long desired for resolving the inherent three-dimensional spatial features and temporal dynamics of turbulent flames. This talk uses several examples to introduce our recent work on multidimensional diagnostics using tomography, and to discuss the unique opportunities that they can enable. Examples include the multidimensional measurements of mixture fraction, temperature fields, chemical species distribution, and instantaneous 3D flame topography. Combined with ruggedized hardware and robust data analyzing algorithms, such measurements have been successfully demonstrated in both laboratory flames and also practical combustion systems including a model scramjet combustor.

Following his BS degree in 2000 from Tsinghua University, Dr. Ma worked as a graduate research assistant in the High Temperature Gasdynamics Laboratory (HTGL) at Stanford University during 2000 to 2006. He started his faculty career in 2006 after completing his PhD work, focusing on multidimensional laser diagnostics. His work on 2D mixture fraction measurement was recognized by the National Science Foundation with a CAREER award. He is also active in teaching and professional services. His teaching and research efforts were recognized by a Board of Trustee Award, and he is an active member of several professional organizations and technical committees.

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