Global solution to a one-dimensional model of viscous and heat-conducting micropolar real gas flow

2021 ◽  
Vol 495 (1) ◽  
pp. 124690 ◽  
Author(s):  
Angela Bašić-Šiško ◽  
Ivan Dražić
Keyword(s):  
Global Solution ◽  
Gas Flow ◽  
Heat Conducting ◽  
Dimensional Model ◽  
Real Gas ◽  
One Dimensional

One-dimensional model on fuel penetration in diesel sprays with gas flow

2016 ◽  
Vol 17 (1) ◽  
pp. 109-118 ◽  
Author(s):  
M. Xu ◽  
Y. C. Sun ◽  
Y. Cui ◽  
K. Y. Deng ◽  
L. Shi
Keyword(s):  
Gas Flow ◽  
Dimensional Model ◽  
Diesel Sprays ◽  
One Dimensional

Integrated modelling of internal combustion engine intake and exhaust systems

2001 ◽  
Vol 215 (4) ◽  
pp. 495-506 ◽  
Author(s):  
O Chiavola
Keyword(s):  
Internal Combustion Engines ◽  
Gas Flow ◽  
Complex Geometry ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Integrated Modelling ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
One Dimensional ◽  
Exhaust Systems

This paper presents a new method to analyse the unsteady gas flow in both intake and exhaust systems of internal combustion engines. Such a method is based on the simultaneous use of a one-dimensional model applied to describe the phenomena in ducts, together with a lumped parameter scheme to investigate the cylinder or other volume behaviour, coupled with a three-dimensional model, able to guarantee detailed information on flow behaviour in complex geometry, retaining the advantages of all methods, accuracy as well as fast processing and high flow pattern resolution. The description of the one-dimensional model developed with an example of its application is presented. The integrated approach with the coupling procedure is then described. Finally the results of a multicylinder exhaust system simulation are illustrated.

scholarly journals Comparison of a One-Dimensional Model of a High-Temperature Solid-Oxide Electrolysis Stack With CFD and Experimental Results

2005 ◽  
Author(s):  
J. E. O’Brien ◽  
C. M. Stoots ◽  
J. Stephen Herring ◽  
G. L. Hawkes
Keyword(s):  
High Temperature ◽  
Gas Flow ◽  
Operating Conditions ◽  
Operating Voltage ◽  
Dimensional Model ◽  
One Dimensional ◽  
Constant Flow Rate ◽  
High Temperature Steam ◽  
The One ◽  
Increasing Temperature

A one-dimensional model has been developed to predict the thermal and electrochemical behavior of a high-temperature steam electrolysis stack. This electrolyzer model allows for the determination of the average Nernst potential, cell operating voltage, gas outlet temperatures, and electrolyzer efficiency for any specified inlet gas flow rates, current density, cell active area, and external heat loss or gain. The model includes a temperature-dependent area-specific resistance (ASR) that accounts for the significant increase in electrolyte ionic conductivity that occurs with increasing temperature. Model predictions are shown to compare favorably with results obtained from a fully 3-D computational fluid dynamics model. The one-dimensional model was also employed to demonstrate the expected trends in electrolyzer performance over a range of operating conditions including isothermal, adiabatic, constant steam utilization, constant flow rate, and the effects of operating temperature.

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