バーナ火炎の安定化機構に関する実験的研究 : 第1報,火炎基部近傍の流れの場の検討

概要

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Particle tracer techniques, which are simple and have a high resolution of space, are one of the most useful means to measure streamlines and velocities in the flow field with a flame. The particles, however, tend to retain their original direction of motion and do not follow completely the change in direction of the gas flow. An approach to correct the particle tracks in the flow with a burner flame was proposed. In the approach, the changing ratio of width between two neighboring streamlines was made graphically smooth in the direction of the respective streamlines and along the ignition front. The flow field near the flame base was examined using the modified streamlines. The stabilizing point, where the streamline is at right angles with the ignition front, exists in flame base. Mass velocities near the flame base decrease as the measuring position is shifted toward downstream. Mass burning velocities at the stabilizing point decrease when the equivalence ratio approaches the blowoff limit.
一般社団法人日本機械学会の論文
1986-07-25