"Predictability of detonation wave phenomena: influence of diffusive processes, hydrodynamic instabilities and relaxation effects on the hydrodynamic description"

“爆轰波现象的可预测性：扩散过程、流体动力学不稳定性和弛豫效应对流体动力学描述的影响”

• 批准号: 341897-2012
• 负责人: Radulescu, Matei
• 金额: $ 2.77万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=527509
• 关键词: Predictability; detonation; wave; phenomena; influence

Detonation waves are self-sustained supersonic reaction waves, which can be sustained in reactive gases and condensed phase energetic materials (propellants, explosives, dusts, etc...). The large overpressures occurring behind gaseous detonations make them useful for propulsion applications. These applications require accurate control of the wave initiation and wave stability. For safety applications, whenever a detonable gas is accidentally released, it is desirable to have the capability for predicting the eventual ignition and propagation limits and the large-scale effects in order to develop the appropriate mitigation strategies. Unfortunately, the detonation wave dynamics cannot be predicted in typical engineering applications. The present research's objective is to develop such a predictive model.

爆炸波是自我维持的超音速反应波，可以在反应性气体和凝结相的能量材料（推进剂，炸药，尘埃等）中维持。 气体爆炸后发生的大型过压使其对推进应用有用。 这些应用需要准确控制波启动和波稳定性。对于安全应用，每当意外释放出令人着迷的气体时，都希望能够预测最终的点火和传播限制和大规模效应，以制定适当的缓解策略。 不幸的是，在典型的工程应用中无法预测爆炸波动力学。 本研究的目标是开发这样的预测模型。