search

UMD    AGRC






The National Science Foundation (NSF) awarded Aerospace Engineering Assistant Professor Stuart Laurence a 2018 Faculty Early Career Development (CAREER) Award for his project, “Effects of thermal nonequilibrium on the acoustic noise radiated by a compressible turbulent boundary layer.”

According to Laurence, in gaseous flows over solid surfaces, the thin near-wall region can become chaotic and turbulent; these turbulent motions can then cause the generation of intense, outward-propagating sound waves, especially when the flow is supersonic. This project seeks to understand such noise generation when the gas in question (e.g., carbon dioxide, or high-temperature air) absorbs sound waves at certain frequencies.

In particular, it is thought that by introducing such a gas into a near-surface flow of air, the noise generation can be reduced in configurations such as high-speed wind tunnels, where this noise can severely contaminate measurements. In conjunction, a variety of educational activities will be undertaken to introduce students at all levels to high-speed flows, including the creation of a YouTube channel where students can suggest objects to be flown in a Mach-8 wind tunnel.

 



August 3, 2018


«Previous Story  

 

 

Current Headlines

UMD’s New ASTRA Center Announces Seed Grants

Madeline Fischer Wins 2024 European Rotorcraft Forum Padfield Award

Project Embraces Tribal History With Modern Technology

Department Welcomes New Faculty Member Tam Nguyen

UMD Student Receives Wings Foundation Scholarship

Maryland Engineers Take On Big Challenges in Medicine

Two Clark School Engineers Named Associate Fellows of Aeronautics and Astronautics Institute

Meet the A. James Clark Scholars Class of ’28

Aerospace Engineering Celebrates 75 Years

Eleven University of Maryland Faculty Affiliate With MATRIX Lab

 
 
Back to top  
AGRC Home Clark School Home UMD Home