scholarly journals CFD Analysis of Flow Characteristics in a Jet Laryngoscope and the Different Application Forms of Superimposed Jet Ventilation

2020 ◽  
Author(s):  
Alexander Aloy ◽  
Simon Hell ◽  
Andreas Nowak ◽  
Matthaeus Grasl
Keyword(s):  
Flow Characteristics ◽  
Cfd Analysis ◽  
Jet Ventilation ◽  
Application Forms

scholarly journals A Study on Internal Flow Characteristics of T Branch using CFD Analysis

2015 ◽  
Vol 26 (5) ◽  
pp. 438-444
Author(s):  
CHUL HEE JO ◽  
MYEONG JOO KIM ◽  
SEOK JIN CHO ◽  
SU JIN HWANG
Keyword(s):  
Flow Characteristics ◽  
Internal Flow ◽  
Cfd Analysis

CFD analysis of gas–liquid flow characteristics in a microporous tube-in-tube microchannel reactor

2018 ◽  
Vol 170 ◽  
pp. 13-23 ◽  
Author(s):  
Wen-Ling Li ◽  
Yi Ouyang ◽  
Xue-Ying Gao ◽  
Chen-Yu Wang ◽  
Lei Shao ◽  
...  
Keyword(s):  
Liquid Flow ◽  
Flow Characteristics ◽  
Cfd Analysis ◽  
Microchannel Reactor ◽  
Gas Liquid Flow

The Wind Flow Characteristics Measuring Simulations of Soundproof Tunnels on Expressways

2018 ◽  
Vol 878 ◽  
pp. 70-75 ◽  
Author(s):  
Jang Youl You ◽  
Sun Young Paek ◽  
Doo Kie Kim ◽  
Ki Pyo You
Keyword(s):  
Wind Velocity ◽  
Flow Characteristics ◽  
Wind Flow ◽  
Cfd Analysis ◽  
Analysis Method ◽  
Residential Areas ◽  
Heat Islands ◽  
Computational Fluid Dynamics Cfd ◽  
Weather Stations ◽  
Using Data

Soundproof tunnels and soundproof walls constructed on expressways are designed to prevent noise for the nearby surrounding residential areas. These soundproof walls and tunnels feature excellent noise prevention for residential areas nearby, but they hamper the dispersion of air pollutants generated, thus promoting the creation of heat islands during summer and cold islands during winter.The computational fluid dynamics (CFD) analysis method was used to investigate the wind flow around soundproof tunnels. The wind angle and the size of the wind velocity were determined using data from weather stations near soundproof tunnels. The CFD analysis results of the soundproof tunnels on expressways revealed that the wind velocity decreased by 30–60% following the installation of soundproof tunnels.

CFD Analysis of Composite Axial Water Turbine

2010 ◽  
Author(s):  
Jifeng Wang ◽  
Norbert Mu¨ller
Keyword(s):  
Design Method ◽  
Flow Analysis ◽  
Three Dimensional ◽  
Flow Characteristics ◽  
Cfd Analysis ◽  
Computational Investigation ◽  
Rotating Speed ◽  
Fundamental Understanding ◽  
Water Turbine ◽  
Water Turbines

This paper presents computational investigation of the flow in composite material axial water turbines using Finite Volume based commercial CFD package namely Fluent. Based on three dimensional numerical flow analysis and fluid-structure interaction, the flow characteristics of water turbines including nozzle, impeller and diffuser are predicted. Two particulare cases are studied and compared. The extract power of water turbine in different rotating speed and water inlet velocity are analyzed. The calculated results will provide a fundamental understanding of the impeller as water turbine, and this design method is used to shorten the design period and improve the water turbine’s performance.

CFD Analysis of Batch-Type Reheating Furnace With Regeneratve Burners

2008 ◽  
Author(s):  
Bin Wu ◽  
Tom Roesel ◽  
Andrew M. Arnold ◽  
Zhaojiang Xu ◽  
Eugene Arnold ◽  
...  
Keyword(s):  
Product Quality ◽  
Three Dimensional ◽  
Control Process ◽  
Flow Characteristics ◽  
Steel Production ◽  
Value Added ◽  
Heating Process ◽  
Cfd Analysis ◽  
Reheating Furnace ◽  
Quality Control Process

A reheating furnace is a critical component in value-added steel production. These furnaces can have a significant impact on product quality and total cost. Due to the higher efficiency of regenerative burners, a growing number of reheating furnaces are using this technology. To better understand the regenerative burner operation, a Computational Fluid Dynamics (CFD) analysis has been conducted to examine the transient and three dimensional flow characteristics in the No.3 reheating furnace at ArcelorMittal Steelton. Simulation results with traditional burners and regenerative burners have been analyzed to understand the effect of retrofitting a furnace with these more modern burners. The temperature distribution on the billets has also been monitored throughout the simulated heating process providing insight into the optimization of billet residence time and improvement of the product quality control process.

scholarly journals ICONE11-36393 EVALUATION OF FLOW CHARACTERISTICS IN THE LOWER PLENUM OF THE ABWR BY USING CFD ANALYSIS

2003 ◽  
Vol 2003 (0) ◽  
pp. 301 ◽  
Author(s):  
Shirou Takahashi ◽  
Hideo Soneda ◽  
Kenichi Yasuda ◽  
Kouji Shiina ◽  
Seiichi Matsumura ◽  
...  
Keyword(s):  
Flow Characteristics ◽  
Cfd Analysis

Piston-Lift Check Valve Flow Verification Using CFD

2018 ◽  
Author(s):  
Matthew Laney ◽  
Ronald Farrell
Keyword(s):  
Flow Characteristics ◽  
Check Valve ◽  
Valve Lift ◽  
Cfd Analysis ◽  
Test Results ◽  
Finite Element Software ◽  
Translational Movement ◽  
Wide Range ◽  
Computational Fluid Dynamics Cfd ◽  
Good Agreement

Computational Fluid Dynamics (CFD) is increasingly being used as a reliable method for determining flow characteristics of a wide range of flow situations. This paper presents an extension of paper PVP2017-66269, “Check Valve Flow and Disk Lift Simulation Using CFD” [1], and utilizes some of the same concepts to characterize flow through piston-lift check valves. The previous example considered a swing check valve involving rotational movement; this example considers a vertical lift piston check valve involving translational movement. Specifically, CFD was used to determine valve flow coefficients (CV) as a function of disk lift position as well as to determine the flow rate required to achieve full open or predict intermediate disk lift positions. The CFX application, which is part of the ANSYS suite of finite element software, was used to determine the flow characteristics. As presented in PVP2017-66269, balancing flow-induced forces on the check element and considering the disk assembly weight, the valve lift behavior can be predicted. Results from the CFX analysis were compared to recent test results of a skirted disk-piston check valve and previous test results of a standard disk-piston check valve. The results showed good agreement in most cases. This validates that flow characteristics across valves with different types of check elements at different disk lift positions can be reliably predicted using CFD analysis. It is important to note that while the test results and CFD analysis showed good agreement, it was vital that actual testing be performed in order to validate the approach. This follows the recommendation outlined in the previous paper.

scholarly journals Numerical Simulation of the Hydrodynamics of Some Sectors of the Prute River

2019 ◽  
Vol 70 (3) ◽  
pp. 902-905
Author(s):  
Galina Marusic ◽  
Valeriu Panaitescu
Keyword(s):  
Water Pollution ◽  
Fluid Dynamics ◽  
Numerical Simulation ◽  
Flow Characteristics ◽  
Aquatic Systems ◽  
Cfd Analysis ◽  
Computational Fluid Dynamics Cfd ◽  
Prut River

This paper addresses issues related to the determination of hydrodynamics of aquatic systems, with the application of computational fluid dynamics (CFD) analysis. The importance of knowing the hydrodynamics of aquatic systems for solving water pollution problems, as well as their prevention, is discussed. A case study regarding the determination of the water flow characteristics using CFD for some sectors of the Prut river is presented.

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