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[blastFoam] Implementation and Validation of the JWL++ Reactive Flow Model

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Old   January 27, 2020, 16:25
Default Implementation and Validation of the JWL++ Reactive Flow Model
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Tim Brewer
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The Synthetik team is excited to announce the implementation and validation of the JWL++ Reactive Flow model as part of our free and open-source CFD airblast code blastFoam.

The JWL++ Reaction Flow model was developed at Lawrence Livermore National Laboratory and allows the addition of kinetics to detonation events i.e., the time-dependence of the explosive’s chemical reaction, while still enabling efficient, scalable calculations suitable for engineering and design. It’s addition greatly enhances timing accuracy and load characterization especially for near-contact explosive scenarios.

Implementation of the JWL++ Reactive Flow model allows blastFoam to capture phenomena such as 'size effect'* and 'detonation front curvature'** both of which are important when modeling near-contact explosive scenarios.

* Size Effect: The decrease of detonation velocity with decreasing charge radius

** Detonation Front Curvature: Induced by edge lag of the detonation front as energy is lost to the exterior of the charge

blastFoam is available for download here:

Learn more about Synthetik Applied Technologies here:

Videos of our validation simulations can be viewed here:


1. Souers, P. C., Anderson, S., Mercer, J., McGuire, E. & Vitello, P. JWL++: A Simple Reactive Flow Code Package for Detonation. 5 (2000).

2. Guilkey, J. E., Harman, T. B. & Banerjee, B. An Eulerian–Lagrangian approach for simulating explosions of energetic devices. Computers & Structures 85, 660–674 (2007).
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blast, blastfoam, cfd, explosions, openfoam

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