NUMERICAL-SIMULATION OF THE EFFECTS OF CENTER TUBE AND MULTIPLE AIR INJECTION ON THE GAS-FLOW FIELD IN A VORTEX COMBUSTOR

被引：1

作者：

ZHANG, J ^{[1
]}

NIEH, S ^{[1
]}

机构：

[1] CATHOLIC UNIV AMER, DEPT MECH ENGN, COMBUST & MULTIPHASE FLOWS LAB, WASHINGTON, DC 20064 USA

来源：

COMBUSTION SCIENCE AND TECHNOLOGY | 1993年 / 88卷 / 1-2期

关键词：

STRONGLY SWIRLING FLOW; VORTEX COMBUSTOR; NUMERICAL SIMULATION; TURBULENCE MODEL;

D O I：

10.1080/00102209308947227

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper presents systematic numerical simulations of the strongly swirling gas flows in a novel coal-fired vortex combustor (VC) recently developed for commercial heating applications. The non-isotropic turbulence of strongly swirling flows was closed by a new version algebraic Reynolds stress model. The calculated results, compared with the measurements of a 25 cm I.D. bench-scale VC test chamber, delineate the detailed effects of the center tube height and the flow rates of multiple air injection on gas tangential and axial velocities, flow pattern, pressure drop, and turbulent intensity.

引用

页码：43 / 57

页数：15

共 16 条

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