Low-Density Shock Tube for Chemical Kinetics Studies

1961 ◽  
Vol 4 (2) ◽  
pp. 238 ◽  
Author(s):  
Shao-Chi Lin ◽  
Walter I. Fyfe
Keyword(s):  
Shock Tube ◽  
Chemical Kinetics ◽  
Low Density ◽  
Kinetics Studies

A N2O Laser Absorption Diagnostic Near 4.6 μm for Shock-Tube Chemical Kinetics Studies

2020 ◽  
Author(s):  
Clayton Mulvihill ◽  
Sulaiman Alturaifi ◽  
Olivier Mathieu ◽  
Eric L. Petersen
Keyword(s):  
Shock Tube ◽  
Chemical Kinetics ◽  
Laser Absorption ◽  
Kinetics Studies ◽  
N2o Laser

Boundary Layer Effects on Chemical Kinetics Studies in a Shock Tube

1970 ◽  
Vol 53 (8) ◽  
pp. 3050-3055 ◽  
Author(s):  
Assa Lifshitz ◽  
Akiva Bar‐Nun ◽  
P. C. T. de Boer ◽  
E. L. Resler
Keyword(s):  
Boundary Layer ◽  
Shock Tube ◽  
Chemical Kinetics ◽  
Kinetics Studies

scholarly journals Diaphragmless single-pulse shock tube for high-temperature chemical kinetics studies

2019 ◽  
Vol 90 (6) ◽  
pp. 064101 ◽  
Author(s):  
W. Sean McGivern ◽  
Iftikhar A. Awan ◽  
Jeffrey A. Manion
Keyword(s):  
High Temperature ◽  
Shock Tube ◽  
Chemical Kinetics ◽  
Single Pulse ◽  
Kinetics Studies

scholarly journals The Oxford Cold Driven Shock Tube (CDST) for Fuel Spray and Chemical Kinetics Research

2018 ◽  
Author(s):  
Joseph Camm ◽  
Martin Davy ◽  
Xiaohang Fang ◽  
Luke Doherty ◽  
Matthew McGilvray ◽  
...  
Keyword(s):  
Shock Tube ◽  
Chemical Kinetics ◽  
Fuel Spray

Shock-tube development for high-pressure and low-temperature chemical kinetics experiments

Shock Waves ◽  
2009 ◽  
pp. 171-176 ◽  
Author(s):  
J. de Vries ◽  
C. Aul ◽  
A. Barrett ◽  
D. Lambe ◽  
E. Petersen
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
Shock Tube ◽  
Chemical Kinetics

CH Kinetics Measurements and Their Importance for Modeling Prompt NOx Formation in Gas Turbines

2020 ◽  
Vol 142 (4) ◽  
Author(s):  
Sean P. Cooper ◽  
Clayton R. Mulvihill ◽  
Olivier Mathieu ◽  
Eric L. Petersen ◽  
Mark W. Crofton ◽  
...  
Keyword(s):  
Shock Tube ◽  
Chemical Kinetics ◽  
Gas Turbines ◽  
Near Infrared ◽  
Elevated Temperatures ◽  
Frequency Doubling ◽  
Tunable Laser ◽  
Detailed Chemical Kinetics ◽  
Reflected Shock ◽  
Time Histories

Abstract Recent work by the authors and others has uncovered the need for further chemical kinetic-related modeling and experiments, specifically for NOx kinetics at engine conditions. In particular, data on CH formation at realistic combustion conditions are needed for further refinement of the prompt-NOx kinetics. To this end, a series of shock-tube experiments to obtain CH concentration time histories at elevated temperatures was performed behind reflected shock waves at the Aerospace Corporation using a tunable laser. This Ti-Sapphire laser was operated in the near infrared at about 854 nm; blue light at 426.9 nm was obtained using an external, frequency-doubling crystal. The resulting light was used in a differential absorption setup with common-mode rejection to measure CH time histories. New measurements in CH4–C2H6–O2 mixtures highly diluted in argon were performed at temperatures between 1890 K and 2719 K. These new data are compared to several modern, detailed chemical kinetics mechanisms with updated NOx submechanisms. Sensitivity and rate of production analyses at the shock-tube conditions along with a gas turbine model are used to elucidate the current state of affairs in CH prediction by the literature models and its effect on NOx production, particularly through the prompt mechanism. A brief discussion of the chemical kinetics for an important reaction in the production of CH is also presented to emphasize the need for further study and refinement of reactions leading to CH production.

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