Accession Number : AD1040496


Title :   Combining Advanced Turbulent Mixing and Combustion Models with Advanced Multi-Phase CFD Code to Simulate Detonation and Post-Detonation Bio-Agent Mixing and Destruction


Descriptive Note : Technical Report,01 Jul 2011,30 Apr 2016


Corporate Author : Georgia Institute of Technology Colorado Atlanta United States


Personal Author(s) : Akiki,Michel ; Menon,Suresh


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1040496.pdf


Report Date : 01 Oct 2017


Pagination or Media Count : 129


Abstract : This work is focused on the development of computational models for the simulation of blast waves, heterogeneous combustion and their interaction with particle dispersion. In particular, a novel Eulerian-Lagrangian (EE/EL) hybrid approach is combines a hybrid Eulerian and Lagrangian framework for dense loading of particles. The Eulerian approach (EE) tracks particles in the dense regime however in the dilute regime the Lagrangian formulation becomes superior. Transition from dense to dilute is achieved by locally tracking the volume loading and at present, using a numerically determine transfer criteria. Verification and validation tests are conducted using canonical cases and compared to analytical and/or data as available. Good agreement is demonstrated, although further studies are still warranted.


Descriptors :   DETONATIONS , simulations , blast waves , combustion , explosions , dispersions , particles , verification , validation , computational science , turbulent mixing , computational fluid dynamics , heat transfer , energetic materials , chemical reactions , BIOLOGICAL FACTORS , chemical kinetics


Subject Categories : Explosions
      Fluid Mechanics
      Chemical, Biological and Radiological Warfare


Distribution Statement : APPROVED FOR PUBLIC RELEASE