Multiphase CFD-simulation of bubbly pipe flow: A code comparison

2015 ◽  
Vol 68 ◽  
pp. 135-152 ◽  
Author(s):  
Roland Rzehak ◽  
Sebastian Kriebitzsch
Keyword(s):  
Pipe Flow ◽  
Cfd Simulation ◽  
Code Comparison ◽  
Multiphase Cfd

Experiment and multiphase CFD simulation of gas-solid flow in a CFB reactor at various operating conditions: Assessing the performance of 2D and 3D simulations

2020 ◽  
Vol 37 (12) ◽  
pp. 2094-2103
Author(s):  
Mukesh Upadhyay ◽  
Myung Won Seo ◽  
Parlikkad Rajan Naren ◽  
Jong-Ho Park ◽  
Thanh Dang Binh Nguyen ◽  
...  
Keyword(s):  
Cfd Simulation ◽  
Operating Conditions ◽  
Solid Flow ◽  
3D Simulations ◽  
Multiphase Cfd ◽  
2D And 3D

CFD Simulation of Heat Transfer in Turbulent Pipe Flow

2004 ◽  
Vol 43 (11) ◽  
pp. 2816-2829 ◽  
Author(s):  
Mahesh T. Dhotre ◽  
Jyeshtharaj B. Joshi
Keyword(s):  
Heat Transfer ◽  
Pipe Flow ◽  
Cfd Simulation ◽  
Turbulent Pipe Flow

Frost Growth Simulation in Cryogenic Vertical Pipe Flow

2012 ◽  
Vol 542-543 ◽  
pp. 1074-1078
Author(s):  
Kye Bock Lee ◽  
Yun Hwan Kim ◽  
Ho Yeon Kim ◽  
Won Gook Lee ◽  
Kyeong Il Chai ◽  
...  
Keyword(s):  
Pipe Flow ◽  
Heat Transfer Performance ◽  
Cfd Simulation ◽  
Vertical Surface ◽  
Flow Conditions ◽  
Vertical Pipe ◽  
Frost Formation ◽  
Growth Simulation ◽  
Error Method ◽  
Frost Growth

This study reports a numerical CFD study concerning the effect of frost thickness on the heat transfer performance of a vertical pipe. Simulation are made under various variables affecting the frost growth such as outer flowing air conditions (temperature, flow velocity, humidity) and inner flow conditions of cryogenic fluid. The frost growth is mainly associated with the outer conditions. The frost thermal conductivity could play an important role in the froth growth. There is no great. The simulation for frost formation carried out with coupling to a commercial CFD code(CFX). The CFD simulation offers the possibility to predict frost formation within vertical geometries. The frost formation is based on the Lewis analogy of heat and mass transfer and it is embedded with CFX. The vertical surface temperature of the freezing body is determined by fluid structure interactive error method.

scholarly journals Optimizing hydraulic reservoirs using euler-eulerlagrange multiphase cfd simulation

2020 ◽  
Author(s):  
Lukas Muttenthaler ◽  
◽  
Bernhard Manhartsgruber ◽  
Keyword(s):  
Cfd Simulation ◽  
Multiphase Cfd

Multiphase CFD Simulation of Flow Inside Liquid Seal Drums of the Refinery Flare System

2011 ◽  
Vol 51 (2) ◽  
pp. 1073-1082
Author(s):  
Randheer Yadav ◽  
Amitkumar Parekh ◽  
Ajay Gupta ◽  
Asit Kumar Das
Keyword(s):  
Cfd Simulation ◽  
Liquid Seal ◽  
Multiphase Cfd

Comparison of CFD Simulation and Simplified Modeling of a Fluidized Bed CO2 Capture Reactor

2016 ◽  
Vol 14 (1) ◽  
pp. 133-141 ◽  
Author(s):  
Daoyin Liu ◽  
Zhonglin Zhang ◽  
Yaming Zhuang ◽  
Xiaoping Chen
Keyword(s):  
Fluidized Bed ◽  
Flow Model ◽  
Cfd Simulation ◽  
Plug Flow ◽  
Fluidized Bed Reactors ◽  
Cfd Model ◽  
Two Phase ◽  
Multiphase Cfd ◽  
Reactor Models ◽  
Dem Model

AbstractCO2 capture using solid sorbents in fluidized bed reactors is a promising technology. The multiphase CFD model is increasingly developed to study the reactors, but it is difficult to model all the realistic details and it requires significant computational time. In this study, both the multiphase CFD model (i.e., CFD-DEM model coupled with reaction) and the simplified reactor models (i.e., plug flow model and bubbling two-phase model) are developed for modeling a fluidized bed CO2 capture reactor. The comparisons are made at different gas velocities from fixed bed to fluidized bed. The DEM based model reveals a detailed view of CO2 adsorption process with particle flow dynamics, based on which the assumptions in the simplified models can be evaluated. The plug flow model predictions generally show similar trends to the DEM model but there are quantitative differences; thus, it can be used to determine the reactor performance limit. The bubbling two-phase model gives better predictions than the plug flow model because the effect of bubbles on the inter-phase mass transfer and reaction is included. In the future, a closer combination of the multiphase CFD simulation and the simplified reactor models will likely be an efficient design method of CO2 capture fluidized bed reactors.

Multiphase CFD Simulation of Photogrammetry 3D Model for UAV Crop Spraying

2019 ◽  
pp. 812-822 ◽  
Author(s):  
Héctor Guillermo Parra ◽  
Victor Daniel Angulo Morales ◽  
Elvis Eduardo Gaona Garcia
Keyword(s):  
3D Model ◽  
Cfd Simulation ◽  
Multiphase Cfd
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