THERMOPHORETIC EFFECTS ON SEEDING PARTICLES IN LDV MEASUREMENTS OF FLAMES

被引：74

作者：

SUNG, CJ ^{[1
]}

LAW, CK ^{[1
]}

AXELBAUM, RL ^{[1
]}

机构：

[1] WASHINGTON UNIV,DEPT MECH ENGN,ST LOUIS,MO 63130

来源：

COMBUSTION SCIENCE AND TECHNOLOGY | 1994年 / 99卷 / 1-3期

关键词：

D O I：

10.1080/00102209408935428

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The motion of LDV seeding particles under the influence of viscous and thermophoretic forces in the rapidly-accelerating, high-temperature-gradient flame environment was studied via the counterflow premixed twin-flame configuration. Results demonstrate that thermophoretic force can induce significant lag between the fluid and particle velocities in the active preheat zone of a flame, and suggest that caution should be exercised when interpreting LDV data obtained in this region. A thermophoretic velocity correction to the LDV-determined velocity, with known experimental or computational temperature profile, is proposed. Additional considerations of LDV diagnostics and its determination of laminar flame speed are also presented.

引用

页码：119 / 132

页数：14

共 22 条

[1] SLIP CORRECTION MEASUREMENTS OF SPHERICAL SOLID AEROSOL-PARTICLES IN AN IMPROVED MILLIKAN APPARATUS [J].