Numerical Analysis of No-Darcy Seepage of High-Pressure Gas Produced by Explosion in Deep Closed Geologic Body

2020 ◽  
Keyword(s):  
High Pressure ◽  
Numerical Analysis

Auto-Ignition and Numerical Analysis on High-Pressure Combustion of Premixed Methane-Air mixtures in Highly Preheated and Diluted Environment

2021 ◽  
pp. 1-23
Author(s):  
Subrat Garnayak ◽  
Ayman M Elbaz ◽  
Olawole Kuti ◽  
Sukanta Kumar Dash ◽  
William L Roberts ◽  
...  
Keyword(s):  
High Pressure ◽  
Numerical Analysis ◽  
Auto Ignition

scholarly journals Role of temperature in the numerical analysis of CaO under high pressure

2010 ◽  
Vol 8 (1) ◽  
pp. 126-133 ◽  
Author(s):  
Purvee Bhardwaj ◽  
Sadhna Singh
Keyword(s):  
Phase Transition ◽  
High Pressure ◽  
Numerical Analysis ◽  
Thermodynamic Properties ◽  
Elastic Constants ◽  
Volume Change ◽  
Thermodynamical Properties ◽  
Phase Transition Pressure ◽  
Different Temperatures

AbstractIn this paper we focus on the elastic and thermodynamic properties of the B1 phase of CaO by using the modified TBP model, including the role of temperature. We have successfully obtained the phase transition pressure and volume change at different temperatures. In addition elastic constants and bulk modulus of B1 phase of CaO at different temperatures are discussed. Our results are comparable with the previous ones at high temperatures and pressures. The thermodynamical properties of the B1 phase of CaO are also predicted.

Estimation of Frictional Coefficient between Punch and Billet at Back-Stroke in Backward Can Extrusion Test of Steel

2018 ◽  
Vol 767 ◽  
pp. 248-255
Author(s):  
Kazuhito Asai ◽  
Kazuhiko Kitamura ◽  
Keisuke Goto ◽  
Nobukazu Hayashi
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Numerical Analysis ◽  
Frictional Coefficient ◽  
Expansion Ratio ◽  
Coated Steel ◽  
Forward Stroke ◽  
High Pressure High Temperature ◽  
The Coefficient Of Friction ◽  
Surface Expansion

A backward can extrusion test provides severe tribological conditions because high pressure, high temperature, and large surface expansion ratio affect the lubricant. During the forward stroke these conditions intensify with increasing cup depth of the extruded workpiece; additionally, the back-stroke force during retraction of the punch rises to a significant level under a poor-lubricated condition. This study estimates the coefficient of friction μp between punch and workpiece during the back-stroke by combining experiments using conventional soap-phosphate coated steel and numerical analysis by FEM. The values of μp were estimated to be 0.09 and 0.03 in case of small and large workpiece depth, respectively. Friction decreased with elevating temperature.

Pressure Increase in Elliptical Impact EHL Contacts With Surface Asperities

2012 ◽  
Author(s):  
M. Kaneta ◽  
F. Guo ◽  
J. Wang ◽  
I. Krupka ◽  
M. Hartl
Keyword(s):  
High Pressure ◽  
Numerical Analysis ◽  
Steel Plate ◽  
Pressure Level ◽  
Pressure Increase ◽  
Local Pressures ◽  
Steel Body

The phenomena which occur when a spherical steel body impacts a stationary steel plate with surface asperities are discussed through isothermal Newtonian numerical analysis using sinusoidal roughness. The ridges of the sinusoidal roughness produce large local pressures, particularly in elliptical contacts, when constant loads are imposed on the contact by impact. The pressure level is usually larger when the ridges are located along the major contact direction than along the minor contact direction, and increases as the loading speed increases. The high pressure induces a micro-groove in the ridge and the horse-shoe shaped constriction is formed at the ridges locating around the contact edge.

Numerical analysis of high-pressure fluid jets: Application to RTD prediction in supercritical reactors

2009 ◽  
Vol 49 (2) ◽  
pp. 249-255 ◽  
Author(s):  
J. Sierra-Pallares ◽  
M.T. Parra-Santos ◽  
J. García-Serna ◽  
F. Castro ◽  
M.J. Cocero
Keyword(s):  
High Pressure ◽  
Numerical Analysis ◽  
Fluid Jets

Monitoring Crack Propagation of High Pressure and High Temperature Components by Multi-Physics Numerical Analysis Approach

2017 ◽  
Author(s):  
Hamid R. Ahmadi Moghaddam ◽  
Pierre Mertiny
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Numerical Analysis ◽  
Crack Propagation ◽  
Interaction Analysis ◽  
Analysis Approach ◽  
High Temperature Component ◽  
Sensor Device ◽  
Temperature Component ◽  
High Temperature Components

The safety of high pressure and high temperature components is paramount, and therefore, developing effective and reliable methodologies to improve the prediction of crack propagation is an important task. The present paper describes and demonstrates a multi-physics numerical analysis approach for assessing crack propagation using a sensor device. This method employs a coupled structural-thermal-electric analysis in conjunction with a thermal-fluid-structure interaction analysis to study the structural health of a high pressure and high temperature component.

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