Three-dimensional Eulerian modeling of gas-liquid-solid flow with gas hydrate dissociation in a vertical pipe
文献类型:期刊论文
作者 | Li P(李鹏); Zhang XH(张旭辉); Lu XB(鲁晓兵) |
刊名 | CHEMICAL ENGINEERING SCIENCE |
出版日期 | 2019-03-16 |
卷号 | 196页码:145-165 |
ISSN号 | 0009-2509 |
关键词 | Marine gas hydrate-bearing sediment Hydrate dissociation model CFD Gas-liquid-solid Eulerian model |
DOI | 10.1016/j.ces.2018.10.053 |
英文摘要 | The pipe transportation of gas hydrate-bearing sediments (GHBS)(1) is one of the key problems in mechanical-thermal exploitation of gas hydrate (GH)(2) in marine stratum. It is a gas-liquid-solid (methane gas-seawater-GHBS particles) three-phase flow, accompanied by GH dissociation. In this study, a three-dimensional Eulerian model combined with the kinetic theory of granular flow (KTGF) was adopted to simulate the gas-liquid-solid flow with GH dissociation. The commercial CFD software FLUENT 16.2 was employed, considering the hydrodynamics, heat and mass transfer, and GH dissociation simultaneously. A kinetic model for GH dissociation in the GHBS particles is presented, considering the influence of multiphase flow on dissociation rate. The model can capture the transition from the initial liquid-solid two-phase flow to gas-liquid-solid three-phase flow, describing the distribution of the phase volume fraction, velocity, temperature, and dissociation rate. The interaction between GH dissociation and multiphase flow is discussed. The simulation results indicate that the continuous production of gas bubbles by GH dissociation leads to more violent fluctuations in the pressure gradient and a more marked elevation of the solid particles compared with the liquid-solid two-phase flow without GH dissociation. In addition, the effect of GH dissociation on the multiphase flow under different hydrate saturations was analyzed. (C) 2018 Elsevier Ltd. All rights reserved. |
分类号 | 二类/Q1 |
WOS关键词 | CIRCULATING FLUIDIZED-BED ; OXY-FUEL COMBUSTION ; CFD SIMULATIONS ; MULTIPHASE FLOW ; MASS-TRANSFER ; HEAT ; HYDRODYNAMICS ; SENSITIVITY ; REACTOR ; MOTION |
WOS研究方向 | Engineering, Chemical |
语种 | 英语 |
WOS记录号 | WOS:000456795700013 |
资助机构 | National Natural Science Foundation of China [51639008] ; [2017027] |
其他责任者 | Zhang, XH |
源URL | [http://dspace.imech.ac.cn/handle/311007/78471] |
专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
作者单位 | {Zhang, Xuhui} Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China、Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Li P,Zhang XH,Lu XB. Three-dimensional Eulerian modeling of gas-liquid-solid flow with gas hydrate dissociation in a vertical pipe[J]. CHEMICAL ENGINEERING SCIENCE,2019,196:145-165. |
APA | Li P,Zhang XH,&Lu XB.(2019).Three-dimensional Eulerian modeling of gas-liquid-solid flow with gas hydrate dissociation in a vertical pipe.CHEMICAL ENGINEERING SCIENCE,196,145-165. |
MLA | Li P,et al."Three-dimensional Eulerian modeling of gas-liquid-solid flow with gas hydrate dissociation in a vertical pipe".CHEMICAL ENGINEERING SCIENCE 196(2019):145-165. |
入库方式: OAI收割
来源:力学研究所
其他版本
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。