異なる乱流条件下の乱流予混合燃焼DNSに基づく乱流燃焼モデルの検討(燃焼・反応(2),一般講演)

概要

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In previous our study, we had executed direct numerical simulation of the turbulent premixed flames under different density ratio cases. However, the turbulent flames were under relatively weak turbulence condition nearly equal to the laminar burning velocity. Now, the new DNS of turbulent premixed flames under the twice of turbulent intensity and the half of integral length scale is executed to obtain fully developed steady turbulent flames. The shallower wrinkled flames are shown in comparison with previous DNS of wrinkled flames. Based on new databases of fully developed steady turbulent flames, the transport equations for turbulent kinetic energy and turbulent scalar flux are analyzed in order to compare the transport properties in different turbulence conditions and improve turbulent combustion models.
日本流体力学会の論文
2008-09-04