A Novel Multiscale QM-MD-SPH Computational Method for Heterogeneous Multicomponent Reactive Systems

Abstract

This project aims to develop a novel three-stage coupled multi-scale QM-MD-SPH approach for modeling and simulation of complex heterogeneous multicomponent reactive systems, considering both high explosive (HE) explosion effects. The novelty of our approach is that the unified particle-based approaches couples the dynamic events over nine orders of magnitude length scales (nm-m) and twelve orders of magnitude timescales (ps-s). This is achieved by using ab initio quantum mechanics (QM) approaches at the nano scale, molecular dynamics (MD) at the micro scale and smoothed particle hydrodynamics (SPH) at the continuum scale.

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Document Details

Document Type
Technical Report
Publication Date
Nov 30, 2017
Accession Number
AD1042770

Entities

People

  • Guangyu Wang
  • Guirong Liu
  • Qing Peng
  • Suvranu De

Organizations

  • University of Cincinnati

Tags

Communities of Interest

  • Counter IED
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Band Structures
  • Chemistry
  • Computational Fluid Dynamics
  • Computational Science
  • Crystal Structure
  • Explosions
  • Explosives
  • Heat Energy
  • Materials Laboratories
  • Materials Science
  • Materials Testing
  • Mathematical Models
  • Mechanical Properties
  • Mechanics
  • Molecular Dynamics
  • Phase Transformations
  • Thermodynamics

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Quantum Chemistry

Technology Areas

  • Quantum Computing