The gas generator is the safety-critical core of every airbag system. Within a few milliseconds, it must provide a defined amount of gas with precisely controlled pressure and temperature \u2013 reliably, reproducibly, and under extreme conditions. The fluid dynamics processes that occur \u2013 compression shocks, expansion waves, heat transfer, and real gas behavior \u2013 are highly dynamic and difficult to fully capture with measurement technology. Computational fluid dynamics (CFD) is therefore an indispensable tool in the development and design of modern gas generators.<\/p>\n\n\n\n
Unlike incompressible flows \u2013 such as in classical hydraulic systems \u2013 all essential effects of compressible gas dynamics<\/strong> taken into account. Our CFD simulations fully represent these physical phenomena:<\/p>\n\n\n\n Depending on the question, we use stationary simulations for basic design and parameter studies, or fully transient calculations to map the highly dynamic ignition and filling process. Our simulation workflows are based on proven open-source and commercial CFD solvers and are managed via our software environment InsightCAE<\/strong> efficiently controlled<\/p>\n\n\n\n CFD simulation of airbag gas generators supports all phases of product development \u2013 from conceptual design to virtual validation before crash testing:<\/p>\n\n\n\n\n
Stationary and Transient Simulation \u2013 Methodology and Tools<\/h2>\n\n\n\n
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Application areas and development goals<\/h2>\n\n\n\n
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Request CFD simulation for your gas generator<\/h2>\n\n\n\n