Three-dimensional Numerical Simulation on Dispersion Process of Unsteady High Pressure Hydrogen Jet Flow

2017 ◽  
Author(s):  
Nobuyuki Tsuboi ◽  
Keisuke Fujimoto ◽  
Daiki Muto ◽  
Makoto Asahara
Keyword(s):  
Numerical Simulation ◽  
High Pressure ◽  
Three Dimensional ◽  
Jet Flow ◽  
Dispersion Process ◽  
Pressure Hydrogen

The Establishment of Ninety Degree Gas Elbow Pipes Internal Pressure Distribution Model

2014 ◽  
Vol 670-671 ◽  
pp. 696-699 ◽  
Author(s):  
Xiao Yang Lu ◽  
Yong Zhou ◽  
Shi Ying Chen ◽  
Xin Guang Li ◽  
Hong Liang Zhu
Keyword(s):  
Numerical Simulation ◽  
High Pressure ◽  
Internal Pressure ◽  
Pressure Distribution ◽  
High Velocity ◽  
Three Dimensional ◽  
Distribution Model ◽  
Geometrical Parameters ◽  
Maximum Relative Error ◽  
Nonlinear Fitting

According to the principle of harmonious dimensions, the qualitative distribution model of the internal pressure on elbow pipes were determined; Through FLUENT numerical simulation, the internal pressure were given under 96 kinds of gas fluid conditions; By analyzing the variation of the internal pressure with flow and geometrical parameters, the variation of the internal pressure distribution within the elbow pipes has been studied; By means of 1stOpt nonlinear fitting package, the formula of three-dimensional internal pressure distribution was determined; Compared with the numerical results, the maximum relative error is 0.012%. The formula provides theoretical bases for strength check, the transport pipeline and wall thickness design of the high pressure, high velocity elbow.

Numerical simulation of high-pressure hydrogen jet flames during bonfire test

2012 ◽  
Vol 37 (1) ◽  
pp. 783-790 ◽  
Author(s):  
Jinyang Zheng ◽  
Haiyan Bie ◽  
Ping Xu ◽  
Pengfei Liu ◽  
Yongzhi Zhao ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
High Pressure ◽  
Jet Flames ◽  
Pressure Hydrogen
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