화학공학소재연구정보센터
Combustion and Flame, Vol.127, No.3, 2119-2123, 2001
Turbulent scales in a fan-stirred combustion bomb
Turbulent scales were investigated in a fan-stirred combustion bomb. Two-dimensional particle velocimetry measurements were used to evaluate flow fields and scales for the Reynolds number range Re-l = 37 - 711, the subscript I referring to the integral scale. The Taylor scale A is correlated with the electrical power input It for the fans producing turbulence. It is found that the integral scale remains unchanged and Lambda II1/6 = constant for Re-l > 100. When electrical power input is assumed to be a measure for turbulent production, dimensional arguments based on a volume-averaged large-scale estimate for viscous dissipation lead to the foregoing correlation for homogeneous turbulence.