NUMERICAL SIMULATION OF GAS-LIQUID TWO-PHASE FLOW WITH REVERSE BUOYANCY IN QUENCH CHAMBER OF COAL GASIFIER AND ITS APPLICATION

GONG Xiaobo; GU Zhaolin; LIN Gaoping; FENG Xiao; YU Yongzhang; LIN Zonghu

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NUMERICAL SIMULATION OF GAS-LIQUID TWO-PHASE FLOW WITH REVERSE BUOYANCY IN QUENCH CHAMBER OF COAL GASIFIER AND ITS APPLICATION

更新时间：2025-12-10

- NUMERICAL SIMULATION OF GAS-LIQUID TWO-PHASE FLOW WITH REVERSE BUOYANCY IN QUENCH CHAMBER OF COAL GASIFIER AND ITS APPLICATION
- CIESC Journal Issue 7, Pages: 930-935(2003)
- 作者机构：
  
  1. 西安交通大学环境与化学工程学院,陕西,西安,710049
  2. 上海理工大学动力系,上海,200093
  3. 西安交通大学能源与动力工程学院,陕西,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 July 2003，
  
  Published：25 July 2003
- 稿件说明：
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GONG Xiaobo, GU Zhaolin, LIN Gaoping, et al. NUMERICAL SIMULATION OF GAS-LIQUID TWO-PHASE FLOW WITH REVERSE BUOYANCY IN QUENCH CHAMBER OF COAL GASIFIER AND ITS APPLICATION[J]. CIESC Journal, 2003, (7): 930-935.
DOI：

GONG Xiaobo, GU Zhaolin, LIN Gaoping, et al. NUMERICAL SIMULATION OF GAS-LIQUID TWO-PHASE FLOW WITH REVERSE BUOYANCY IN QUENCH CHAMBER OF COAL GASIFIER AND ITS APPLICATION[J]. CIESC Journal, 2003, (7): 930-935. DOI：

摘要

综合逆压突扩流动和浮力各向异性的流场特征，运用颗粒群理论，引入Shih的Reynolds应力通用本构关系建立了可实现性应力代数模型.在模型中引入涡扩散理论建立了扩散方程，解决了气液两相数值模拟中流型变化带来的复杂问题.运用该模型对气化炉洗涤室内流场进行了数值预报，并进一步量化分析了出口动量与最大下降深度和夹层内侧出口含气率的关系.

Abstract

Referring to the specificities of the flow field with anisotropic property

the group theory of particles is used and the general constitutive equation of Reynolds stress proposed by Shih is introduced to build a realizable algebraic stress model. The diffusion theory of vortex is also used in the model to set up the diffusion equation of gas

and the barrier caused by the variation of flow patterns inside the flow field is resolved. With the numerical model

the characteristics of the “cold state” flow field in the quench chamber of coal slurry gasifier are predicted. The relations of the maximum descending depth and void ratio of gas with outlet momentum are further discussed.

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