CFD simulation and optimization of the ventilation for subway side-platform

2007 ◽  
Vol 22 (4) ◽  
pp. 474-482 ◽  
Author(s):  
Feng-Dong Yuan ◽  
Shi-Jun You
Keyword(s):  
Cfd Simulation ◽  
Simulation And Optimization

The Performance Simulation and Optimization Research on Intake Port of Locomotive Diesel Engine

2012 ◽  
Vol 443-444 ◽  
pp. 1007-1013
Author(s):  
Hong Jiang Cui ◽  
Ming Hai Li ◽  
Ying Guan
Keyword(s):  
Diesel Engine ◽  
Flow Condition ◽  
Discharge Coefficient ◽  
Cfd Simulation ◽  
Air Flow ◽  
Three Dimensional ◽  
Engine Performance ◽  
Simulation Method ◽  
Intake Port ◽  
Simulation And Optimization

.In order to manufacture high quality intake port with bigger discharge coefficient and appropriate swirl ratio for diesel engine performance improvement, intake port tests and CFD simulation method were combined together to optimize its structure. The three-dimensional CAD model of intake port was built and was putted into AVL–FIRE platform to do CFD simulation with appropriate turbulence model and calculation method. The detailed air flow information was obtained by CFD simulation. After analyzing, two optimization programs were discussed. This research shows that CFD simulation is a powerful method to design diesel engine intake port; air flow condition is complex in the intake port; intake port structure optimization can increase the discharge coefficient and improve the air flow condition.

Effects of vortexes in feed header on air flow distribution of PEMFC stack: CFD simulation and optimization for better uniformity

2021 ◽  
Vol 173 ◽  
pp. 498-506
Author(s):  
Guoqing Su ◽  
Daijun Yang ◽  
Qiangfeng Xiao ◽  
Haiqin Dai ◽  
Cunman Zhang
Keyword(s):  
Cfd Simulation ◽  
Air Flow ◽  
Flow Distribution ◽  
Simulation And Optimization

CFD simulation and optimization of the settler of an industrial copper solvent extraction plant: A case study

2011 ◽  
Vol 106 (3-4) ◽  
pp. 148-158 ◽  
Author(s):  
Roohollah Sadeghi ◽  
Ali Mohebbi ◽  
Amir Sarrafi ◽  
Ataallah Soltani ◽  
Mazyar Salmanzadeh ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Cfd Simulation ◽  
Solvent Extraction Plant ◽  
Extraction Plant ◽  
Simulation And Optimization ◽  
Copper Solvent Extraction

CFD Simulation and Optimization of Winpak-based Modular Catalytic Structured Packing

2015 ◽  
Vol 54 (8) ◽  
pp. 2391-2403 ◽  
Author(s):  
Huidian Ding ◽  
Jinming Li ◽  
Wenyu Xiang ◽  
Chunjiang Liu
Keyword(s):  
Cfd Simulation ◽  
Structured Packing ◽  
Simulation And Optimization

scholarly journals CFD Simulation and Optimization of Adiabatic Reaction Process of C-2 Hydrogenation

2020 ◽  
Author(s):  
Wenjing Wei
Keyword(s):  
Conversion Rate ◽  
Load Distribution ◽  
Gas Flow ◽  
Performance Metrics ◽  
Cfd Simulation ◽  
Reaction Model ◽  
Equation Model ◽  
Operating Conditions ◽  
Marginal Effect ◽  
Simulation And Optimization

In this paper, the computational fluid dynamics (CFD) method has been used to simulate the gas flow and the catalytic hydrogenation process of the C-2 hydrogenation adiabatic reactor in a practical ethylene production unit of a chemical plant. The laminar finite-rate model was used for the chemical reaction model. The standard two-equation model was used for the turbulence model. The exponent-function kinetic model was used for the reaction dynamics model. The simulation results were in good agreement with the actual industrial data obtained from the C-2 hydrogenation reactor, and the distributions of reaction parameters such as temperature and component concentrations in the reactor were further analyzed. Based on the validated CFD models, the structure and operating conditions of the reactor, as well as hydrogen load distribution ratios, are simulated for comparing the comprehensive performance metrics of ethylene selectivity and acetylene conversion rate; as a result, we can obtain the optimal temperature of 312 K, the optimal hydrogen/acetylene ratio of 0.10 as well as the optimal hydrogen load distribution ratio of 4:4:2, and the diameter/height ratio exerts a marginal effect on the selectivity, conversion rate and harmonic mean of the reactor.

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