ENTRAINMENT AND DEMIXING IN SUBSONIC THERMAL PLASMA JETS - COMPARISON OF MEASUREMENTS AND PREDICTIONS

被引：51

作者：

FINCKE, JR

CHANG, CH

SWANK, WD

HAGGARD, DC

机构：

[1] Idaho National Engineering Laboratory, EG and G Idaho, Inc., Idaho Falls

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 1994年 / 37卷 / 11期

关键词：

D O I：

10.1016/0017-9310(94)90181-3

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Measurements of velocity, temperature, entrained air, and Ar/He concentration profiles in a subsonic thermal plasma jet were obtained using an enthalpy probe and mass spectrometer combination. The rapid entrainment of air into the jet results in rapidly decreasing velocities and temperatures. A significant diffusive separation of the premixed Ar/He feed gases is observed in the large temperature gradients present. Predictions are obtained from a comprehensive computational model of the thermal plasma jet. The 2-D axisymmetric model includes self-consistent effective binary and ambipolar diffusion and uses a k-epsilon turbulence model.

引用

页码：1673 / 1682

页数：10

共 35 条

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