Modeling Nuclear Cloud Rise and Fallout in Complex Environments

Katherine Lundquist | 18-ERD-049

Executive Summary

This research seeks to develop a nuclear cloud rise and fallout model based on first principles for use in modeling detonations in complex environments. If successful, this fundamental research will support homeland security missions through an improved understanding of nuclear detonations and the subsequent fallout processes in real-world conditions.

Publications, Presentations, and Patents

Lundquist, K. 2019. "Crossing Multiple Gray Zones in the Transition from Mesoscale to Microscale Simulation over Complex Terrain." Atmosphere-Basel. 10. doi:10.3390/atmos10050274. LLNL-JRNL-764800

——— 2020a. "Semi-implicit method to solve compressible multiphase fluid flows without acoustic time step restrictions." Comput. Fluids. 210. LLNL-JRNL-797139

——— 2020b. "Mesoscale to Microscale Simulations over Complex Terrain with the Immersed Boundary Method in the Weather Research and Forecasting Model." Mon. Weather Rev, 148, 577-595. LLNL-JRNL-761310

Lundquist, K., et al. 2020a. "Modeling Nuclear Cloudrise and Fallout in Complex Environments." JOWOG 43. LLNL-PRES-800437

——— 2020b. "Multiscale and Large-Eddy Simulation Atmospheric Modeling." Air Force/Army Weather R&D Workshop. LLNL-PRES-814699

Wagman, B. 2020. "Examining a Regional Nuclear Exchange Scenario: Could Urban Fires Cause a Global Climate Perturbation?" JGR: Atmospheres, 125, 4. LLNL-JRNL-809541

Wagman, B., et al., 2019. "Examining the climate perturbation caused by a regional nuclear exchange using unified micro- to global scale atmospheric modeling." American Geophysical Union Fall Meeting, San Francisco, CA, December 2019. LLNL-POST-798517

——— 2020. "Examining the Climate Effects of Fires from a Regional Nuclear Weapons Exchange." Meteorology for Nuclear Emergencies and Nonproliferation. LLNL-PRES-804676

Wiersema, D., et al. 2019. "Representation of Turbulence in Multiscale WRF-IBM Simulations Over Complex Urban Terrain." American Geophysical Union Fall Meeting, San Francisco, CA, December 2019. LLNL-POST-799521