Understanding ambient pressure effects on piloted ignition through numerical modeling

2012 ◽  
Vol 159 (12) ◽  
pp. 3544-3553 ◽  
Author(s):  
Sonia Fereres ◽  
Chris Lautenberger ◽  
A. Carlos Fernandez-Pello ◽  
David L. Urban ◽  
Gary A. Ruff
Keyword(s):  
Numerical Modeling ◽  
Ambient Pressure ◽  
Pressure Effects ◽  
Piloted Ignition

Case Study of Ambient Pressure Effects on Pore Shape in Solid

2017 ◽  
Vol 31 (4) ◽  
pp. 796-804 ◽  
Author(s):  
Shih-Yen Hsiao ◽  
Peng-Sheng Wei
Keyword(s):  
Ambient Pressure ◽  
Pressure Effects ◽  
Pore Shape

NUMERICAL MODELING OF CONVECTIVE EFFECTS ON PILOTED IGNITION OF COMPOSITE MATERIALS

2005 ◽  
Vol 177 (5-6) ◽  
pp. 1231-1252 ◽  
Author(s):  
C.W. LAUTENBERGER ◽  
Y.Y. ZHOU ◽  
A.C. FERNANDEZ-PELLO
Keyword(s):  
Numerical Modeling ◽  
Composite Materials ◽  
Piloted Ignition

Piloted ignition of solid fuels at low ambient pressure and varying igniter location

2013 ◽  
Vol 34 (2) ◽  
pp. 2497-2503 ◽  
Author(s):  
Dai Jiakun ◽  
Michael A. Delichatsios ◽  
Yang Lizhong
Keyword(s):  
Ambient Pressure ◽  
Solid Fuels ◽  
Piloted Ignition

Thermal and Flow Fields Modeling of Fast Spark Discharges in Air

2006 ◽  
Vol 129 (1) ◽  
pp. 55-65 ◽  
Author(s):  
O. Ekici ◽  
O. A. Ezekoye ◽  
M. J. Hall ◽  
R. D. Matthews
Keyword(s):  
Ambient Pressure ◽  
Early Time ◽  
Spark Discharge ◽  
Pressure Effects ◽  
Local Thermal Equilibrium ◽  
Heat Conducting ◽  
Current Profile ◽  
Spark Plug ◽  
Time Flow ◽  
History Of

In this study, a two-dimensional axisymmetric computational model of spark discharge in air is presented to provide a better understanding of the dynamics of the process. Better understanding of the modeling issues in spark discharge processes is an important issue for the automotive spark plug community. In this work we investigate the evolution of the shock front, temperature, pressure, density, geometry, and flow history of a plasma kernel using various assumptions that are typically used in spark discharge simulations. A continuum, inviscid, heat conducting, single fluid description of the flow is considered with radiative losses. Assuming local thermal equilibrium, the energy input due to resistive heating is determined using a specified current profile and temperature-dependent gas electrical conductivity in the gap. The spark discharge model focuses on the early time flow physics, the relative importance of conduction and radiation losses, the influence of thermodynamic model choice and ambient pressure effects.

scholarly journals Numerical Modeling of the Flash Boiling Characteristics of E-Fuels at Low Ambient Pressure

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Avijit Saha ◽  
Abhishek Y. Deshmukh ◽  
Temistocle Grenga ◽  
Mathis Bode ◽  
Mathias Grunewald ◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Ambient Pressure ◽  
Flash Boiling

Ambient Pressure Effects on Atmospheric Oxygen Levels in Patrol Submarines

1977 ◽  
Vol 63 (2) ◽  
pp. 101-104
Author(s):  
E. J. Jolly
Keyword(s):  
Atmospheric Oxygen ◽  
Ambient Pressure ◽  
Pressure Effects ◽  
Oxygen Generation ◽  
Oxygen Levels

AbstractThis article describes a submarine trial which demonstrates the importance of considering ambient pressure in a diesel-electric submarine when determining submerged time allowed before commencing oxygen generation.

Sign in / Sign up

Export Citation Format

Share Document