Andrew D Bragg

Andrew Bragg

Assistant Professor of Civil and Environmental Engineering

Dr. Andrew D. Bragg’s research focuses on fundamental and applied problems in fluid dynamics, especially turbulence.

Particular problems include understanding the microphysical processes governing rain formation in clouds and their implications for global climate, the mixing of organisms in the ocean, water treatment, and the dispersion of pollution in the atmosphere, along with astrophysical and industrial problems. His approach to solving these problems combines methods from applied mathematics and statistical physics, along with high-performance computation. Recent interests also include ecohydrology, porous media flows and geophysical fluid dynamics.

Before joining the Duke University faculty, Dr. Bragg was a postdoctoral associate in the Applied Mathematics and Plasma Physics Group at the Los Alamos National Laboratory. Prior to that, he was a postdoctoral associate in the Sibley School of Mechanical and Aerospace Engineering at Cornell University. Dr. Bragg obtained his PhD in Theoretical Fluid Dynamics from Newcastle University in England.

Appointments and Affiliations

  • Assistant Professor of Civil and Environmental Engineering

Contact Information

Education

  • Ph.D. Newcastle University (UK), 2012

Research Interests

Fundamental and applied problems in fluid dynamics, especially turbulence, and its role in environmental systems.

Awards, Honors, and Distinctions

  • EUROMECH Young Scientist Award, given at the 16th European Turbulence Conference at KTH in Stockholm 2017.. European Mechanics Society. 2017

Courses Taught

  • CEE 301L: Fluid Mechanics
  • CEE 690: Advanced Topics in Civil and Environmental Engineering

In the News

Representative Publications

  • Dhariwal, R; Bragg, AD, Small-scale dynamics of settling, bidisperse particles in turbulence, Journal of Fluid Mechanics, vol 839 (2018), pp. 594-620 [10.1017/jfm.2018.24] [abs].
  • Reeks, M; Swailes, DC; Bragg, AD, Is the kinetic equation for turbulent gas-particle flows ill posed?, Physical review. E, vol 97 no. 2 (2018) [10.1103/PhysRevE.97.023104] [abs].
  • Dou, Z; Ireland, PJ; Bragg, AD; Liang, Z; Collins, LR; Meng, H, Particle-pair relative velocity measurement in high-Reynolds-number homogeneous and isotropic turbulence using 4-frame particle tracking velocimetry, Experiments in Fluids, vol 59 no. 2 (2018) [10.1007/s00348-017-2481-0] [abs].
  • Bragg, AD; De Lillo, F; Boffetta, G, Irreversibility inversions in two-dimensional turbulence, vol 3 no. 2 (2018) [10.1103/PhysRevFluids.3.024302] [abs].
  • Bragg, AD, Analysis of the forward and backward in time pair-separation probability density functions for inertial particles in isotropic turbulence, Journal of Fluid Mechanics, vol 830 (2017), pp. 63-92 [10.1017/jfm.2017.586] [abs].