Abstract We report the results of laboratory investigations of the behaviour during explosion mitigation by channels typical of those used in commercial explosion arrester devices. Experimental results are presented first of shock and detonation wave interaction with a miniaturized matrix of narrow channels aligned parallel to the incoming flows. The results with a larger scale device using the same channel dimensions tested at more extreme conditions representative of overdriven detonation certification test conditions are consistent with the reduced scale laboratory measurements. To evaluate the applicability of laboratory scale evaluation of arrester elements for other types of explosion arrester, a further preliminary study is also reported with deflagration arrester elements. Finally, the present observations are interpreted in the light of published theories potentially relevant to explaining successful explosion mitigation, or otherwise, by commercial arrester devices. Using this approach, laboratory scale measurements are shown to be as a useful tool for investigating the dominant explosion mitigation mechanisms relevant to practical end user application safety devices and provide an opportunity for assisting with the design and evaluation of practical explosion, especially designs that could be supported by more comprehensive detailed CFD simulations where the supporting laboratory test configurations could also facilitate the use of more sophisticated diagnostic methods

中文翻译：

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阻火器缓解机制的基础研究

摘要 我们报告了对商业防爆装置中使用的典型通道的防爆过程中的行为进行的实验室调查结果。实验结果首先展示了冲击波和爆震波与平行于流入流排列的小型化窄通道矩阵的相互作用。使用相同通道尺寸在代表过载爆震认证测试条件的更极端条件下测试的更大规模设备的结果与缩小规模的实验室测量结果一致。为了评估实验室规模评估其他类型防爆器的避雷器元件的适用性，还报告了对爆燃避雷器元件的进一步初步研究。最后，目前的观察结果是根据已发表的理论来解释的，这些理论可能与解释成功的爆炸缓解或其他商业避雷器装置有关。使用这种方法，实验室规模的测量被证明是一种有用的工具，可用于研究与实际最终用户应用安全设备相关的主要爆炸缓解机制，并为协助设计和评估实际爆炸提供机会，尤其是可以由更全面详细的 CFD 模拟支持，其中支持的实验室测试配置还可以促进使用更复杂的诊断方法