Analysis Method for the Spray Characteristics of a GDI System with High Pressure Modulation

2000 ◽  
Author(s):  
C. N. Grimaldi ◽  
L. Postrioti ◽  
C. Stan ◽  
R. Tröger
Keyword(s):  
High Pressure ◽  
Analysis Method ◽  
Spray Characteristics ◽  
Pressure Modulation

scholarly journals First-Principles Calculations of High-Pressure Physical Properties of Ti0.5Ta0.5 Alloy

Symmetry ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 796
Author(s):  
Fang Yu ◽  
Yu Liu
Keyword(s):  
High Pressure ◽  
Physical Properties ◽  
First Principles ◽  
Theoretical Study ◽  
Applied Pressure ◽  
Lattice Parameter ◽  
Physical Parameters ◽  
First Principles Calculations ◽  
Analysis Method ◽  
Metallic Bond

In this paper, an in-depth theoretical study on some physical properties of Ti0.5Ta0.5 alloy with systematic symmetry under high pressure is conducted via first-principles calculations, and relevant physical parameters are calculated. The results demonstrate that the calculated parameters, including lattice parameter, elastic constants, and elastic moduli, fit well with available theoretical and experimental data when the Ti0.5Ta0.5 alloy is under T = 0 and P = 0 , indicating that the theoretical analysis method can effectively predict the physical properties of the Ti0.5Ta0.5 alloy. The microstructure and macroscopic physical properties of the alloy cannot be destroyed as the applied pressure ranges from 0 to 50GPa, but the phase transition of crystal structure may occur in the Ti0.5Ta0.5 alloy if the applied pressure continues to increase according to the TDOS curves and charge density diagram. The value of Young’s and shear modulus is maximized at P = 25   GPa . The anisotropy factors A ( 100 ) [ 001 ] and A ( 110 ) [ 001 ] are equal to 1, suggesting the Ti0.5Ta0.5 alloy is an isotropic material at 28 GPa, and the metallic bond is strengthened under high pressure. The present results provide helpful insights into the physical properties of Ti0.5Ta0.5 alloy.

Statistical Analysis Method of the Grain Structure of Nanostructured Single Phase Metal Materials Processed by High-Pressure Torsion

2018 ◽  
Vol 284 ◽  
pp. 425-430 ◽  
Author(s):  
Alexey V. Stolbovsky ◽  
Elena Farafontova
Keyword(s):  
Experimental Data ◽  
High Pressure ◽  
Statistical Analysis ◽  
Single Phase ◽  
High Pressure Torsion ◽  
Grain Structure ◽  
Analysis Method ◽  
Tin Bronze ◽  
Statistical Analysis Method ◽  
Metal Materials

The statistical analysis method of the grain structure in bulk single-phase metal materials subjected to high-pressure torsion is proposed. The possibility of methods division of mathematical statistics observed in the grain structure materials by their sizes with the several groups identification, having various behavior at further heating is presented. The example of the grain structure analysis on the nanostructured tin bronze is given. The agreement of the received analysis results with experimental data is offered.

scholarly journals Optical Study on the Fuel Spray Characteristics of the Four-Consecutive-Injections Strategy Used in High-Pressure Isobaric Combustion

2020 ◽  
Author(s):  
Qinglong Tang ◽  
Ramgopal Sampath ◽  
Priybrat Sharma ◽  
Gustav Nyrenstedt ◽  
Abdullah Al Ramadan ◽  
...  
Keyword(s):  
High Pressure ◽  
Fuel Spray ◽  
Optical Study ◽  
Spray Characteristics

scholarly journals Experimental Study of the Coking Phenomenon Effects on Spray Characteristics of the High Pressure Diesel Injector

2020 ◽  
Vol 13 (4) ◽  
pp. 1117-1129
Author(s):  
M. Sheykhvazayefi ◽  
M. Gorji-Bandpy ◽  
A. Hajialimohammadi ◽  
M. Agha Mirsalim ◽  
◽  
...  
Keyword(s):  
Experimental Study ◽  
High Pressure ◽  
Spray Characteristics
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