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Conclusion
• Radioss is able to handle JWL law (err < 1% in 1D).
• Discrepancies are persisting due to the modeling (perfect gas, no
turbulence, no instabilities, simple detonation law JWL, no grain size
effects, no partial detonation, …), but not more 18 % vs Kinney-Graham.
• Radioss also gives orders of magnitudes and tendencies in agreements
with experiments in the case of a cylindrical detonation in air (L/D=1), for :
– Pmax
– Time of arrival
– Duration time
– Positive impulse
• Radioss results are comparable with Autodyn.
2011 European HyperWorks Technology Conference, 7-9 November, Bonn 22