Prospects of Numerical Simulations of Turbulent Combustion Using the K Computer

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  • 「京」コンピュータによる乱流燃焼数値シミュレーションの展望
  • 「 キョウ 」 コンピュータ ニ ヨル ランリュウ ネンショウ スウチ シミュレーション ノ テンボウ

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Abstract

<p>Numerical simulations of combustion fields are indispensable recently not only for the understanding of combustion physics but also for the efficient development and optimal design of combustion devices. Because of the lack of computing power and the immature state of turbulent combustion model, however, the accuracy of the present numerical simulations of combustion fields are insufficient. It is strongly expected that the K computer, which has taken first place on the 38th TOP500 list announced in November 2011 for a consecutive two terms in a row, will be great use to researches in the combustion community. In the "Researches and Developments of Design Systems for Next Generation Combustion and Gasification Devices" project, we aim to physically understand turbulence, particle/droplet dispersion, combustion and gasification, and to develop numerical design systems for next generation combustion and gasification devices by use of the K computer. Particular emphasis is placed on large-eddy simulation (LES) and direct numerical simulation (DNS) of multiphase combustion and gasification such as spray combustion, pulverized coal combustion and coal gasification.</p>

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