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

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

Emission Performance of a Diesel Engine with Pressure-Wave Supercharger

2011 ◽  
Vol 383-390 ◽  
pp. 6168-6173
Author(s):  
Yan Lei ◽  
Hong Guang Zhang ◽  
Da Sen Zhou ◽  
Xiao Lei Bai
Keyword(s):  
Diesel Engine ◽  
Experimental Test ◽  
Pressure Wave ◽  
Engine Speed ◽  
3D Model ◽  
Cfd Simulation ◽  
Test Results ◽  
Turbocharged Diesel Engine ◽  
Emission Performance ◽  
Simulation Results

Pressure-wave supercharger (PWS) is one technical way to boost the engine intake air pressure. PWS has several advantages such as less emission (especially NOx emission), rapid response when load changes, higher torque even at low engine speed. In this research a 493 diesel engine is charged by a pressure-wave supercharger (PWS). The emission performance of the PWS diesel engine is mainly investigated. Together with experimental test, the CFD simulation is completed basing on a 3D model of the PWS rotor channel. The CFD simulation results show that the inner EGR phenomenon happens especially when PWS runs at middle PWS rotational speed with part load. The test results demonstrate that the PWS diesel engine performs well with less NOx and soot emissions than the turbocharged diesel engine.

Parallel CFD simulation of flow in a 3D model of vibrating human vocal folds

2013 ◽  
Vol 80 ◽  
pp. 290-300 ◽  
Author(s):  
Petr Šidlof ◽  
Jaromír Horáček ◽  
Václav Řidký
Keyword(s):  
3D Model ◽  
Cfd Simulation ◽  
Vocal Folds ◽  
Parallel Cfd

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

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.

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