NUMERICAL ANALYSIS OF FLOW BEHAVIOR AND INFLUENCE OF THE REAR SLOPE ANGLE IN AN AHMED’S BODY

2020 ◽  
Author(s):  
Bernardo Silva da Rocha ◽  
charles rech ◽  
Maikson Luiz Passaia Tonatto
Keyword(s):  
Numerical Analysis ◽  
Flow Behavior ◽  
Slope Angle

scholarly journals Numerical Analysis of a Model Pump-turbine Internal Flow Behavior in Pump Hump District

2014 ◽  
Vol 22 (3) ◽  
pp. 032040 ◽  
Author(s):  
Yao Yangyang ◽  
Xiao Yexiang ◽  
Zhu Wei ◽  
Zhai Liming ◽  
An Soo Hwang ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Flow Behavior ◽  
Internal Flow ◽  
Pump Turbine

scholarly journals Numerical Analysis of Flow Behavior in Meniscus Region of Viscoelastic Dip Coating Flows

2005 ◽  
Vol 51 (2) ◽  
pp. 21-28 ◽  
Author(s):  
Takehiro YAMAMOTO ◽  
Naosuke NOJIMA ◽  
Noriyasu MORI
Keyword(s):  
Numerical Analysis ◽  
Flow Behavior ◽  
Dip Coating ◽  
Coating Flows ◽  
Meniscus Region

Numerical Analysis of Compound ECT Signals due to Various Tube Defects near Support Plate in Steam Generator

2006 ◽  
Vol 110 ◽  
pp. 177-182
Author(s):  
Young Kil Shin ◽  
Yun Tai Lee ◽  
Myung Ho Song
Keyword(s):  
Finite Element ◽  
Numerical Analysis ◽  
Steam Generator ◽  
Eddy Current ◽  
Slope Angle ◽  
Signal Prediction ◽  
Support Plate ◽  
Combined Use ◽  
Compound Signal ◽  
Effect Of Support

In this paper, eddy current signals from various anomalous defects in the steam generator tube are numerically predicted and their signal slope characteristics are investigated. The signal variations due to increased frequencies are also observed. Based on the accumulated knowledge, the analysis of compound signal is attempted which includes the effect of support plate. Both differential and absolute bobbin probe signals are analyzed. For the signal prediction, axisymmetric finite element modeling is used and this leads us to the utilization of slope angle analysis of the signal. Results show that differential signals are useful for locating the position of defect under the support plate, while absolute signals are easy to presume and interpret even though the effect of support plate is mixed. Combined use of these two types of signals will help us accomplish a more reliable inspection.

scholarly journals Examination of Void Formation Mechanism by Numerical Analysis

1997 ◽  
Vol 6 (1) ◽  
pp. 096369359700600
Author(s):  
Naoto Ikegawa ◽  
Hiroyuki Hamada ◽  
Zenichiro Maekawa
Keyword(s):  
Finite Element Method ◽  
Porous Medium ◽  
Numerical Analysis ◽  
Formation Mechanism ◽  
Flow Resistance ◽  
Flow Behavior ◽  
Resin Transfer Molding ◽  
Void Formation ◽  
Homogenization Method ◽  
Transfer Molding

In order to analyze flow behavior of resin in the system with porous medium such as fibrous reinforcement for Structural Resin Transfer Molding (SRTM), equivalent viscosity according to a concept of homogenization method was introduced as an index of flow resistance. Numerical analysis using finite element method (FEM) was performed to clarify the void formation mechanism.

scholarly journals Numerical Analysis of Flow Behavior in Vortex Tube for Different Gases

2017 ◽  
Vol 7 (2) ◽  
pp. 18
Author(s):  
Kiran Dattatraya Devade ◽  
Ashok T. Pise ◽  
Atul R. Urade
Keyword(s):  
High Temperature ◽  
Numerical Analysis ◽  
Vortex Tube ◽  
Flow Behavior ◽  
Three Dimensional ◽  
Energy Separation ◽  
Separation Device ◽  
Compressed Gas ◽  
Turbulent Models ◽  
Different Gases

The vortex tube is an energy separation device that separates compressed gas stream into a low and a high temperature stream. Present work reports the flow behavior inside the vortex tube for different commonly used fluids with varied properties like Air, He, N2, CO2 and NH3. Flow behavior investigation for three-dimensional short straight-diverging vortex tube is done with CFD code (ANSYS 16.0). Different turbulent models, standard k-epsilon, Realizable k-epsilon and RNG k-epsilon are tested. Realizable k-epsilon model was then used for analysis. Flow behavior of gases with varied multi-atomic number is analyzed and compared with literature. The effect on temperature for N2 is found to be better, followed by He, CO2, Air and NH3. Energy separation for N2 is 46 % higher than all other gases. Energy separation and flow behavior inside vortex tube is analyzed and compared with literature.

Sign in / Sign up

Export Citation Format

Share Document