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DDT-FOAM is a density based solver developed within the frame of OpenFOAM for predicting flame acceleration and transition from deflagration to detonation. The predictions have been validated with experimental measurements in a horizontal channel filled with both homogeneous and inhomogeneous hydrogen/air mixtures. Overall, the predicted flame tip velocities, overpressures, and locations of detonation onset are in reasonably good agreement with the measurements.

  1. Khodadadi Azadboni, Reza, Heidari, Ali, Wen, Jennifer X. 2020, Numerical analysis of flame acceleration and onset of detonation in homogenous and inhomogeneous mixture. Journal of Loss Prevention in the Process Industries, Vol. 64, March 2020.
  2. Reza Khodadadi Azadboni, Ali Heidari, Lorenz R. Boeck and Jennifer X. Wen, The effect of concentration gradients on deflagration-to-detonation transition in a rectangular channel with and without obstructions – a numerical study, J of Hydrogen Energy, Vol. 44, Issue 13, 8 March 2019, Pages 7032-7040.
  3. Khodadadi Azadboni, A. Heidari, J.X. Wen, A computational fluid dynamic investigation of inhomogeneous hydrogen flame acceleration and transition to detonation, Flow, Turbulence and Combustion, 101:1009–1021, 2018.
  4. Heidari and J. Wen, Numerical simulation of detonation failure and re-initiation in bifurcated tubes, Int. J of hydrogen energy, 42 (2017) 7353 - 7359.
  5. Khodadadi Azadboni, J.X. Wen, A. Heidari, 2017, “Numerical modelling of flame acceleration and transition from deflagration to detonation using OpenFOAM”. In J. Miguel Nóbrega,‎ Hrvoje Jasak eds., “OpenFOAM®: Selected papers of the 11th Workshop”, Springer, 11 Dec. 2018. ISBN: 9783319608457.
  6. Reza Khodadadi Azadboni, Jennifer X. Wen, Ali Heidari, Changjian Wang, Numerical modelling of deflagration to detonation transition in inhomogeneous hydrogen/air mixtures, J of Loss Prevention in the Process Industries 49 (2017) 722-730.

The predicted temperature and density gradient

The predicted temperature and density gradients in 30% H2/Air mixture with concentration gradients BR60

<p><img alt="Temperature and density gradients" src="t_and_d.png" border="0" /></p><p>Hydrodynamic instability during flame acceleration through a channel with 60% blockage ratio</p>