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Multi-physics Simulation
To clarify the coupled phenomena of electromagnetism, heat, fluid, and structure
We simulate multiphysics phenomena such as electromagnetism, heat, fluid, and structure. We conduct comprehensive research that covers aspects from mesh generation to the execution of simulations and visualization of the results. By observing invisible phenomena, we aim to contribute to the manufacturing field.
Research
We are developing our own simulation tools to analyze multi-physics phenomena such as heat, fluid, and structure, which cannot be analyzed by commercial simulation software, with a focus on electromagnetism. We carefully select the most suitable analysis method for each phenomenon, and conduct comprehensive research on mesh generation, speeding up, enlargement, and visualization (drawing) of the analysis results. We aim to apply these methods to everything from equipment performance evaluation to design. Furthermore, advanced design techniques are also possible by using the tools together with optimization algorithms and game theory.
So Noguchi Associate Professor -
New Developments in Combustion Reaction Fluid Simulation
Proposal of a highly efficient analysis method that enables the application of detailed reaction mechanisms
We are proposing a numerical analysis technique to efficiently incorporate detailed large-scale reaction mechanisms, such as those of hydrocarbon fuels that consist of hundreds of chemical species and thousands of chemical reaction orders, into thermo-fluid simulations.
Research
Until now, chemical reaction phenomena in thermo-fluid (CFD) analysis have been modeled simply by assuming an infinitely fast reaction or an overall reaction model consisting of a few chemical species and reaction equations due to computational load and lack of analysis techniques. On the other hand, when the interaction between chemical reactions and fluid phenomena is important, such as in the case of unsteady phenomenon prediction like the ignition timing of automobile engines or ultra-dilute combustion under extreme conditions, it is difficult to apply simple models. Our research group has solved the problem of applying detailed reaction mechanisms to CFD analysis. The proposed method consists of a time integration method (ERENA) that can significantly reduce the calculation time of chemical reaction equations, and a species bundling technique that combines similar chemical species. Depending on the conditions, the proposed method can be tens to hundreds of times faster than the conventionally used methods while maintaining equivalent accuracy.
Hiroshi Terashima Associate Professor
