Collaborators: Profs. Eric Paterson, Wing Ng, and Roger Simpson

Turbulent shear flows occur in nearly all engineering systems and often pace overall performance and dominate noise emissions in large-scale systems such as turbine engines, aircraft and wind turbines. Our research focuses on the detailed turbulence structure of shear flows in order to generate usable knowledge for their modeling, performance impacts and fundamental understanding. Two areas of focus are boundary layers and supersonic jets. Using multi-resolution velocimetry and detailed computational fluid dynamics results, new insights are gained in the phenomena that result in acoustic noise production and flow losses such as drag.

Relevant publications:

  1. Ecker TE*, Lowe KT and Ng WF 2016 “On the distribution and scaling of convective wavespeeds in the shear layers of heated supersonic jets,”  Flow, Turbulence and Combustion, doi:10.1007/s10494-016-9752-3.
  2. Ecker T*, Lowe KT and Ng WF 2015 "Eddy Convection in Developing Heated Supersonic Jets," AIAA Journal, 53(11), 3305-3315.
  3. Blanchard R, Ng W, Lowe KT and Vandsburger U 2014 “Simulating Bluff Body Flameholders: On the Use of Proper Orthogonal Decomposition for Wake Dynamics Validation.” ASME Journal of Engineering for Gas Turbines and Power, 136(12), 122603, Paper No. GTP-14-1119, 12pp.
  4. Lowe KT and Simpson RL 2008 “Turbulence structural measurements using a comprehensive laser-Doppler velocimeter in two- and three-dimensional turbulent boundary layers,” International Journal of Heat and Fluid Flow, 29(3), 820-829.
  5. Lowe K T, and Simpson, R L 2006 “Measurements of velocity–acceleration statistics in turbulent boundary layers,” International Journal of Heat and Fluid Flow, 27(4), 558-565.