航空学报 > 1990, Vol. 11 Issue (10): 476-479

大曲率弯道内稀薄气固两相流场试验研究

史峰, 马材芬, 徐忠   

  1. 西安交通大学
  • 收稿日期:1990-03-10 修回日期:1990-03-15 出版日期:1990-10-25 发布日期:1990-10-25

EXPERIMENTAL INVESTIGATION ON GAS-PARTICLE FLOW IN A DUCT WITH STRONG CURVATURE

Shi Feng, Ma Caifen, Xu Zhong   

  1. Xian Jiaotong University
  • Received:1990-03-10 Revised:1990-03-15 Online:1990-10-25 Published:1990-10-25

摘要: <正> 1.试验设备及方法 试验用的弯道示于图1。弯道的横断面呈矩形50×40mm~2,平均半径R_c=75mm,R_c╱D=1.5,D是当量直径。无量纲半径γ~*=(γ—γ_o)/(γ_—γ_o),其中γ_i是弯道内侧壁半径,γ_o是外侧壁半径。弯道的内侧与外侧壁(即压力面与吸力面)用钢板制成。另外两壁分别用有机玻璃和光学玻璃制成,有机玻璃壁可拆下以清理弯道。

关键词: 两相流, 管道流, 激光测量

Abstract: Laser Dopplcr vclocimcter measurements of gas-particle flows are made in a curved duct with strong curvature. The velocity distribution of the solid phase on each cross-section of the duct is flat, but is lower than that of the gas vclocity.It is observed that- the solid phase has remarkable influences on the tangential and radial velocities of the gas phase.

Key words: two-phase flow, duct flow, laser measurement