Physicochemical-based Models for the Prediction of safety relevant Ignition Processes

这个联合研究项目的目的是开发一个基于物理化学的数值模型来评估可燃气体的点火过程，以用于安全工程。因此，在不同可燃物的混合物中，需要对不同的点火源进行实验和数值研究。研究小组的参与者非常关注澄清在不同的点火过程中各种输运过程与化学反应的相互作用。这个多尺度问题包括几个时间和长度尺度以及不同的物理/化学现象。因此，一个多学科的方法，结合各研究所的经验是必要的，以达到上述目标，包括所有相关的火源。第一个项目阶段的重点是开发简单流动结构的物理化学模型，第二个项目阶段的重点将是将实验研究和模型扩展到更复杂的流动环境，更复杂的可燃物和可燃物气体混合物，低温自动点火，以及湍流流场中点火的分层建模概念。

The aim of this joint research project is the development of a physicochemically based numerical model to evaluate ignition processes of combustible gases with respect to safety engineering. Therefore, different ignition sources in mixtures of different combustibles shall be examined experimentally and numerically. The participants of the research group are strongly focused on the clarification of the interaction of the various transport processes with chemical reactions during the different ignition processes. This multi scale problem comprises several time and length scales and different physical/chemical phenomena. Hence, a multidisciplinary approach that combines the experiences of various institutes is necessary to attain the above aim including all relevant ignition sources. Whereas the focus of first project period was on the development of physicochemical models for simple flow configurations, the focus of the second project period will be the extension of the experimental investigations and models to more complex flow environments, more complex combustibles and mixtures of combustible gases, auto-ignition at low temperatures, and hierarchical modeling concepts for ignition in turbulent flow-fields.