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 (United Kingdom), 2012

Research Interests

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

Awards, Honors, and Distinctions

  • National Science Foundation CAREER award. CBET Fluid Dynamics. 2021
  • EUROMECH Young Scientist Award, given at the 16th European Turbulence Conference at KTH in Stockholm. European Mechanics Society. 2017

Courses Taught

  • ME 634: Turbulence 1
  • CEE 701: Graduate Colloquium
  • CEE 690: Advanced Topics in Civil and Environmental Engineering
  • CEE 688: Turbulence 1
  • CEE 301L: Fluid Mechanics

In the News

Representative Publications

  • Bhattacharjee, S., J. Tom, M. Carbone, and A. D. Bragg. “Investigating the parametric dependence of the impact of two-way coupling on inertial particle settling in turbulence.” Journal of Fluid Mechanics 987 (May 16, 2024). https://doi.org/10.1017/jfm.2024.322.
  • Waterman, T., A. D. Bragg, F. Hay-Chapman, P. A. Dirmeyer, M. D. Fowler, J. Simon, and N. Chaney. “A Two-Column Model Parameterization for Subgrid Surface Heterogeneity Driven Circulations.” Journal of Advances in Modeling Earth Systems 16, no. 5 (May 1, 2024). https://doi.org/10.1029/2023MS003936.
  • Song, C., Q. Liu, J. Wang, A. D. Bragg, S. Wang, X. Gao, Y. Li, J. Wen, and Z. Zhang. “Estimation of Particle Dispersion Characteristics in a Fluidized Bed with the Binary Mixture of Geldart A and B Types Using the Optical Fiber Probe Method.” Industrial and Engineering Chemistry Research 63, no. 17 (May 1, 2024): 7807–20. https://doi.org/10.1021/acs.iecr.3c04367.
  • Grace, A. P., D. H. Richter, and A. D. Bragg. “A Reinterpretation of Phenomenological Modeling Approaches for Lagrangian Particles Settling in a Turbulent Boundary Layer.” Boundary-Layer Meteorology 190, no. 4 (April 1, 2024). https://doi.org/10.1007/s10546-024-00858-w.
  • Johnson, D. R., A. L. Hammond, A. D. Bragg, and H. Meng. “Detailed characterization of extreme clustering at near-contact scales in isotropic turbulence.” Journal of Fluid Mechanics 982 (March 7, 2024). https://doi.org/10.1017/jfm.2023.1059.