Band model calculations for CFCl3 in the 8–12 μm region

1980 ◽  
Vol 23 (2) ◽  
pp. 221-227 ◽  
Author(s):  
Peter M. Silvaggio ◽  
Robert W. Boese ◽  
Roger Nanes
Keyword(s):  
Band Model ◽  
Model Calculations

Numerical Modeling of a Lifted Laminar Coflow Methane Diffusion Jet Flames Using Detailed Chemistry and Non-Grey Gas Radiation Models

2002 ◽  
Author(s):  
Fengshan Liu ◽  
Hongsheng Guo ◽  
Gregory J. Smallwood
Keyword(s):  
Carbon Dioxide ◽  
Radiation Heat Transfer ◽  
Radiation Absorption ◽  
Discrete Ordinates ◽  
Band Model ◽  
Jet Flames ◽  
Nox Formation ◽  
Model Calculations ◽  
Detailed Chemistry ◽  
Methane Diffusion

Two lifted laminar coflow non-sooting methane diffusion jet flames, one diluted by nitrogen and the other diluted by carbon dioxide, at atmospheric pressure were calculated using detailed chemistry and complex thermal and transport properties. Chemical reactions were modeled using the GRI-Mech 3.0 mechanism with species and reactions related to NOx formation removed. Radiation heat transfer by CO, CO2, and H2O was calculated using the discrete-ordinates method coupled with a statistical narrow-band correlated-k based band model. Calculations of each flame were performed with and without radiation absorption term in the radiative transfer equation in order to provide a quantitative evaluation of the importance of radiation absorption in these two lifted flames. Numerical results show that radiation absorption is relatively unimportant in the nitrogen diluted flame but becomes important in the carbon dioxide diluted flame.

Very Narrow Band Model Calculations of Atmospheric Fluxes and Cooling Rates

1996 ◽  
Vol 53 (20) ◽  
pp. 2887-2904 ◽  
Author(s):  
L. S. Bernstein ◽  
A. Berk ◽  
P. K. Acharya ◽  
D. C. Robertson ◽  
G. P. Anderson ◽  
...  
Keyword(s):  
Narrow Band ◽  
Band Model ◽  
Cooling Rates ◽  
Model Calculations ◽  
Narrow Band Model

Effects of Ambipolar Diffusion on Prominence Thread Models

1994 ◽  
Vol 144 ◽  
pp. 315-321 ◽  
Author(s):  
M. G. Rovira ◽  
J. M. Fontenla ◽  
J.-C. Vial ◽  
P. Gouttebroze
Keyword(s):  
Energy Balance ◽  
Transition Region ◽  
Ambipolar Diffusion ◽  
Line Profiles ◽  
Balance Equations ◽  
Model Calculations ◽  
Partial Frequency ◽  
Frequency Redistribution ◽  
Partial Frequency Redistribution ◽  
Theoretical Structure

AbstractWe have improved previous model calculations of the prominence-corona transition region including the effect of the ambipolar diffusion in the statistical equilibrium and energy balance equations. We show its influence on the different parameters that characterize the resulting prominence theoretical structure. We take into account the effect of the partial frequency redistribution (PRD) in the line profiles and total intensities calculations.

Sign in / Sign up

Export Citation Format

Share Document