Physics-Based Simulations to Enable Game-Changing Novel Explosive and Protective Technologies

Abstract

The overall goal of this research is to contribute to national defense and security by advancing the state-of-the-art in explosive dispersal of particles/droplets and replacing current empiricism with a physics-based fundamental approach. The core intellectual objective is to radically advance the field of Compressible Multiphase Turbulence (CMT) by systematically answering key outstanding questions. We will advance a rigorous physics-based formulation of CMT and thereby enable accurate high-fidelity simulations with true predictive capability. Existing simulation tools have become quite advanced over the past decade and they incorporate a wide variety of capabilities. Despite these advancements, their predictive capability, especially for the class of problems of present interest, has been quite poor. The fundamental difficulty is in lack of complete understanding of the complex physics of multiphase flow under conditions of extreme compressible turbulence. In order to accomplish these intellectual and technological objectives, we have studied in detail micro and mesoscale problems.

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Document Details

Document Type
Technical Report
Publication Date
Sep 25, 2013
Accession Number
ADA590230

Entities

People

  • Sivaramakrishnan Balachandar

Organizations

  • University of Florida

Tags

Communities of Interest

  • C4I
  • Counter IED
  • Counter WMD
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Compressible Flow
  • Computational Fluid Dynamics
  • Computational Science
  • Energy Transfer
  • Explosives
  • Fluid Dynamics
  • Fluid Flow
  • Gas Flow
  • Heat Transfer
  • Mechanics
  • National Security
  • Particle Size
  • Physics Laboratories
  • Rayleigh Taylor Instability
  • Reynolds Number
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Systems Analysis and Design