可燃混合気渦の中を伝わる火炎の数理的研究 : 第2報, 数値的検証

概要

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Commpressible Euler equations are numerically solved coupled with the fuel and energy conservation equations which include source terms due to an overal first-order one-step reaction, in order to examine the temporal evolution of flow after a flammable gas mixture confined in an infinitely long Rankine vortex core is ignited at a central part. The distributions of axial vorticity, azimutjhal vorticity and axial velocity clearly show the convective draft of flame tip by the axial velocity induced by the azimuthal vorticity distribution generated on the shoulder part of the curved flame surface due to the spiraling of axial vortex filaments by the thermal expansion effect of flame, thus vailfying the flame propagation mechanism and predictive expressions proposed in the first report.
一般社団法人日本機械学会の論文
1999-09-25