Laser diagnostic measurement of solid propellant flame structure for model validation

2000 ◽  
Author(s):  
Tim Parr ◽  
Donna Hanson-Parr ◽  
Mitchell Smooke ◽  
Richard Yetter
Keyword(s):  
Model Validation ◽  
Solid Propellant ◽  
Flame Structure ◽  
Laser Diagnostic ◽  
Diagnostic Measurement

Observation on Solid Propellant Ignition Using High Speed Camera: The Effect of Hot Wire Position on the Combustion Flame Contour

2014 ◽  
Vol 71 (2) ◽  
Author(s):  
Wan Khairuddin Wan Ali ◽  
Ang Kiang Long ◽  
Mohammad Nazri Mohd. Jaafar
Keyword(s):  
Solid Propellant ◽  
High Speed ◽  
Flame Structure ◽  
Combustion Process ◽  
Ignition Process ◽  
High Speed Camera ◽  
Hot Wire ◽  
Composite Propellant ◽  
Burning Behavior ◽  
Insight Into

This paper reports on the discovery of unique flame structure of a composite propellant sample under hot wire ignition. The entire combustion process at atmospheric pressure condition was recorded using a high speed camera. Three hot wire orientations were chosen in this experiment for examining their effects on the propellant burning behavior. The results show that the wire orientations are crucial in propellant combustion process, as different flame patterns were observed when the hot wire orientation was altered. This paper provides an important insight into this specific ignition process that can be useful for researchers in the aerospace industry for better design and more realistic simulation results in ignition control.

Gas phase flame structure of solid propellant sandwiches with different reaction mechanisms

2016 ◽  
Vol 164 ◽  
pp. 10-21 ◽  
Author(s):  
Trinath Gaduparthi ◽  
Manish Pandey ◽  
Satyanarayanan R. Chakravarthy
Keyword(s):  
Gas Phase ◽  
Reaction Mechanisms ◽  
Solid Propellant ◽  
Flame Structure

Solid propellant diffusion flame structure

1996 ◽  
Vol 26 (2) ◽  
pp. 1981-1987 ◽  
Author(s):  
T.P. Parr ◽  
D.M. Hanson-Parr
Keyword(s):  
Diffusion Flame ◽  
Solid Propellant ◽  
Flame Structure

Study of Solid Propellant Flame Structure by Mass-Spectrometric Sampling

1996 ◽  
Vol 113 (1) ◽  
pp. 557-571 ◽  
Author(s):  
O. P. KOROBEINICHEV ◽  
L. V. KUIBIDA ◽  
A. A. PALETSKY ◽  
A A. CHERNOV
Keyword(s):  
Solid Propellant ◽  
Flame Structure ◽  
Mass Spectrometric

Solid Propellant Flame Structure

1995 ◽  
Vol 418 ◽  
Author(s):  
T. P. Parr ◽  
D. M. Hanson-Parr
Keyword(s):  
Spatial Resolution ◽  
Solid Propellant ◽  
Diffusion Flames ◽  
Flame Structure ◽  
Laser Induced Fluorescence ◽  
Flame Length ◽  
Dark Zone ◽  
Planar Laser ◽  
Burn Rate ◽  
Laser Flux

AbstractPlanar Laser Induced Fluorescence (PLIF), UV/Vis Absorption, and thermocouple measurements were done for HNF, RDX, HMX, and XM39 deflagration with and without CO2 laser-support. RDX and especially HNF have very short self-deflagration flame length scales. HMX and XM39 have taller self-deflagration flames. XM39 has a marked dark zone with plateau temperature about 1400K. RDX's dark zone, present under laser supported deflagration, collapses when the external laser flux is removed. PLIF was used to measure the 2D NH, OH, and CN species profiles for these materials and OH temperature profile for RDX and HNF under non-laser supported conditions. The best spatial resolution for the RDX PLIF was about 4μm. Sandwiches of HNF and various binders were studied with PLIF and while obvious diffusion flames were present at low pressure, they are weak and are not expected to be burn rate controlling.

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