Andrew D Bragg

Andrew D 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.

Courses Taught

  • CEE 690: Advanced Topics in Civil and Environmental Engineering

In the News

Representative Publications

  • Ireland, PJ; Bragg, AD; Collins, LR, The effect of Reynolds number on inertial particle dynamics in isotropic turbulence. Part 2. Simulations with gravitational effects, Journal of Fluid Mechanics, vol 796 (2016), pp. 659-711 [10.1017/jfm.2016.227] [abs].
  • Bragg, AD; Ireland, PJ; Collins, LR, Forward and backward in time dispersion of fluid and inertial particles in isotropic turbulence, Physics of Fluids, vol 28 no. 1 (2016), pp. 013305-013305 [10.1063/1.4939694] [abs].
  • Bragg, AD; Ireland, PJ; Collins, LR, On the relationship between the non-local clustering mechanism and preferential concentration, Journal of Fluid Mechanics, vol 780 (2015), pp. 327-343 [10.1017/jfm.2015.474] [abs].
  • Bragg, AD; Ireland, PJ; Collins, LR, Mechanisms for the clustering of inertial particles in the inertial range of isotropic turbulence, Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, vol 92 no. 2 (2015) [10.1103/PhysRevE.92.023029] [abs].
  • Bragg, AD; Collins, LR, New insights from comparing statistical theories for inertial particles in turbulence: II. Relative velocities, New Journal of Physics, vol 16 no. 5 (2014), pp. 055014-055014 [10.1088/1367-2630/16/5/055014] [abs].