BS, Engineering Science, University of Virginia, 2010
Turbulence is important to the dynamics of many environmental flows because it controls processes such as transport, dispersion, and dissipation. However, the small spatial and temporal scale of turbulent motions makes them challenging to represent in numerical models – turbulence must be explicitly resolved with high-resolution or modeled accurately. My research takes advantage of high-performance computing (HPC) to gain insights into turbulent flows in the atmosphere. At LLNL, my work focuses on developing and using the Weather Research and Forecasting (WRF) model for large-eddy simulations, with application to wind energy and contaminant transport.
Arthur, R. S., Lundquist, K. A., Wiersema, D. J., Bao, J., and Chow, F. K. (2020) Evaluating implementations of the immersed boundary method in the Weather Research and Forecasting model. Monthly Weather Review, 148(5), 2087-2109. doi:10.1175/MWR-D-19-0219.1
Arthur, R. S., Mirocha, J. D., Marjanovic, N., Hirth, B. D., Schroeder, J. L., Wharton, S., and Chow, F. K. (2020) Multi-scale simulation of wind farm performance during a frontal passage. Atmosphere, 11(3), 245. doi:10.3390/atmos11030245
Davis, K. A., Arthur, R. S., Reid, E. C., Rogers, J. S., Fringer, O. B., DeCarlo, T. M., and Cohen, A. L. (2020) Fate of internal waves on a shallow shelf. Journal of Geophysical Research: Oceans, 125(5), e2019JC015377. doi:10.1029/2019JC015377
Masunaga, E., Arthur, R. S., and Yamazaki, H. (2020) Baroclinic residual circulation and mass transport due to internal tides. Journal of Geophysical Research: Oceans, 125(4), e2019JC01531. doi:10.1029/2019JC015316 (Article selected for the cover image of this issue)
Arthur, R. S., Mirocha, J. D., Lundquist, K. A., and Street, R. L. (2019) Using a canopy model framework to improve large-eddy simulations of the neutral atmospheric boundary layer in the Weather Research and Forecasting model. Monthly Weather Review, 147(1), 31-52. doi:10.1175/MWR-D-18-0204.1
Masunaga, E., Arthur, R. S., and Fringer, O.B. (2019) Internal wave breaking dynamics and associated mixing in the coastal ocean, Encyclopedia of Ocean Sciences (Third Edition), 3, 548-554. doi:10.1016/B978-0-12-409548-9.10953-4
Wenegrat, J. O. and Arthur, R. S. (2018) Response of the atmospheric boundary layer to submesoscale sea surface temperature fronts. Geophysical Research Letters, 45. doi:10.1029/2018GL081034
Arthur, R. S., Lundquist, K. A., Mirocha, J. D., and Chow, F. K. (2018) Topographic effects on radiation in the WRF model with the immersed boundary method: implementation, validation, and application to complex terrain. Monthly Weather Review, 146(10), 3277-3292. doi:10.1175/MWR-D-18-0108.1
Arthur, R. S., Venayagamoorthy, S. K., Koseff, J. R., and Fringer, O. B. (2017) How we compute N matters to estimates of mixing in stratified flows, Journal of Fluid Mechanics, 831, R2, 1-10. doi:10.1017/jfm.2017.679
Masunaga, E., Arthur, R. S., Fringer, O. B., and Yamazaki, H. (2017) Sediment resuspension and the generation of intermediate nepheloid layers by shoaling internal bores, Journal of Marine Systems, 170, 31-41. doi:10.1016/j.jmarsys.2017.01.017
Arthur, R. S., Koseff, J. R., and Fringer, O. B. (2017) Local versus volume-integrated turbulence and mixing in breaking internal waves on slopes, Journal of Fluid Mechanics, 815, 169-198. doi:10.1017/jfm.2017.36
Arthur, R. S. and Fringer, O. B. (2016) Transport by breaking internal gravity waves on slopes, Journal of Fluid Mechanics, 789, 93-126. doi:10.1017/jfm.2015.723
Cortés, A., Wells, M. G., Fringer, O. B., Arthur, R. S., and Rueda, F. J. (2015) Numerical investigation of split flows by gravity currents into two-layered stratified water bodies, Journal of Geophysical Research: Oceans, 120, 5254-5271. doi:10.1002/2015JC010722
Arthur, R. S. and Fringer, O. B. (2014) The dynamics of breaking internal solitary waves on slopes, Journal of Fluid Mechanics, 761, 360-398. doi:10.1017/jfm.2014.641
Walter, R. K., Woodson, C. B., Arthur, R. S., Fringer, O. B., and Monismith, S. G. (2012) Nearshore internal bores and turbulent mixing in southern Monterey Bay, Journal of Geophysical Research: Oceans, 117, C07017. doi:10.1029/2012JC008115
Large-eddy simulations of wind turbine response to a frontal passage event using WRF with an actuator disk model (Animation of turbine wakes).
High-resolution modeling of downslope flows in the atmospheric boundary layer over complex terrain using WRF-IBM (3D animation) (NARAC application).