Centre for Scientific Computing

Detonation Physics and Modelling

Part 1: A continuous Professional Development Course. Monday 26 - Tuesday 27 September 2011

Part 2: An introduction to CFD Simulation. Wednesday 28 - Thursday 29 September 2011

ESC

Scope: The course will cover basic concepts on shock and detonation physics for gaseous, homogeneous and heterogeneous explosives and will introduce the participants on modelling, hydrocode simulation and experimental techniques. The course will be given in two parts. Participants may register for either or both parts (discounts apply). The first part will focus on the physics, experiments and reduced modelling, while the second part will be devoted on the CFD simulation, including formulations and numerical methods for gaseous and condensed-phase combustion.

Topics to be covered include: The course will cover a broad range of areas, including:

Part 1:

  • Introduction to Shock Physics;
  • Explosion and Detonation Physics I;
  • Detonation Physics II (Thermodynamic EoS, Rate forms, ZND and Wood Kirkwood);
  • Detonation and Explosion Modelling (thermodynamic analysis, gas, condensed phase);
  • Hot-Spot Ignition of Explosives;
  • Non-ideal detonation modeling - quasi-1D (Role of hot spots - ex void collapse, adiabatic shear, Non-ideal detonation - shock front curvature, finite reaction zone, critical diameter, partial reaction and reduced VOD, Role of confinement, DSD, Program burn);
  • Industrial and defense applications;
  • Examples from CFD modelling;
  • Experimental techniques for studies of explosives;
  • Recent Research on Explosives including DDT Studies;
  • Non-ideal detonation detonation modeling application quasi 1D;
  • CFD applications.

Part 2:

  • Formulations for gaseous and condensed-phases (including augmented Euler, Baer-Nunziato and reduced B-N).
  • Representation of chemistry (including Arhenius, reduced and full chemistry, pressure-based and ignition, and growth models).
  • Numerical schemes.
  • Mesh generation and mesh adaptation (AMR).

The lecturers in Part 2 will demonstrate the theory and numerical methods via a number of case studies, including:

  • Gaseous-phase shock-induced detonation.
  • Shock-flame interaction and deflagration-to-detonation.
  • Condensed-phase shock-induced detonation (rate stick).
  • Condensed-phase propagation of detonation in curved ducts.
  • Condensed-phase detonation using B-N and reduced B-N models.

Working Plan: The lectures on the theory will be complemented by hands-on computational practicals during the afternoons. The participants may bring their own laptops to do the practicals and to connect to the server. Instructions on essential software and how to acquire it will be given at registration. We are able to provide a number of laptops for the duration of the course. There will be additional seminars which will demonstrate the application of the short course topic in industrial and academic practice.

Who should attend: The course is suitable for researchers and practitioners from industry, research institutions and consultancy organizations. The course will also serve as a good introduction for those in managerial and policy-making positions.

Attainable skills: At the end of the course the participants will have a firm understanding of detonation physics fundamentals, knowledge of the hierarchy of models employed for detonation modelling and siulations and hands-on experience using operational codes.