AbstractsBiology & Animal Science

On the integration of Computational Fluid Dynamics (CFD) simulations with Monte Carlo (MC) radiation transport analysis

by Fawaz Ali




Institution: UOIT
Department: Modelling and Computational Science
Degree: MSc
Year: 2010
Keywords: Computational Fluid Dynamics; Monte Carlo Radiation Transport; Resuspension; Radiological Dispersal Device; Bluff body; GAMBIT; MCNPX; Radioactive particulate
Record ID: 1884703
Full text PDF: http://hdl.handle.net/10155/73


Abstract

Numerous scenarios exist whereby radioactive particulates are transported between spatially separated points of interest. An example of this phenomenon is, in the aftermath of a Radiological Dispersal Device (RDD) detonation, the resuspension of radioactive particulates from the resultant fallout field. Quantifying the spatial distribution of radioactive particulates allow for the calculation of potential radiation doses that can be incurred from exposure to such particulates. Presently, there are no simulation techniques that link radioactive particulate transport with subsequent radiation field determination and so this thesis develops a coupled Computational Fluid Dynamics (CFD) and Monte Carlo (MC) Radiation Transport approach to this problem. Via particulate injections, the CFD simulation defines the spatial distribution of radioactive particulates and this distribution is then employed by the MC Radiation Transport simulation to characterize the resultant radiation field. GAMBIT/FLUENT are employed for the CFD simulations while MCNPX is used for the MC Radiation Transport simulations.