스월유동장의 화염전파에 미치는 난류특성의 영향에 관한 연구

DOI QR코드

DOI QR Code

이상준;이종태;이성열
Lee, Sang-Jun;Lee, Jong-Tae;Lee, Seong-Yeol

  • 발행 : 1996.10.01

초록

Flow velocity was measured using a hot wire anemometer. Turbulence intensity was in proportion to mean flow velocity regardless of swirl velocity. And integral length scale has proportional relation with swirl velocity regardless of measurement position. Flame speed calculated by radius of visualized flame was increased and then decreased according to lapse of time from spark. Maximum flame speed was increased according to increase of turbulence intensity. Burning speed and flame transport effect increased with increase of swirl velocity, but ratio of burning speed to flame speed decreased with increased of swirl velocity. Mass fraction burned versus volume fraction burned was increased in proportion to the increase of turbulence intensity, caused by increase of combustion promotion effect according to increase of turbulence intensity and scale.

키워드

화염전파;난류화염속도;난류강도;난류스케일;이송속도;화염속도비