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Experiment ID HYCOM-MC012
Short Description Test 2 of 3 (MC003, MC012, R0489_09). Combustion experiments have been carried out in obstructed tube of 174 mm i.d. and 12.2 m long (DRIVER facility). Repeatable obstacles with blockage ratio BR=0.6 at distances equal to i.d. Hydrogen/air mixture with concentration of 13% H2 was tested.
What phenomena were studied Flame acceleration in the presence of obstructed channel
What phenomena / effects can be studied Steady-state sonic flame
Instrumentation Three types of pressure transducers (1) piezoresistive transducers D06 (one-membrane type, frequency 1 kHz), (2) piezoresistive transducers PPD1.6 (two-membrane type, frequency 100 kHz), and (3) piezoelectric transducers PCB-H113A (frequency 100 kHz).

Collimated germanium photodiodes (up to 23) for measurement of the time-of arrival of the flame front. Time resolution of 10 s. The photodiodes were not calibrated, and they provided flame radiation intensity qualitatively.

Test variables Hydrogen concentration
Data description / Data completeness All pressure and photo-diode recordings in digital form
Data availability Publicly accessible
Source of data / Reference Technical Report: EU Project HYCOM, 2004 (to be published)
Why were chosen Very well instrumented, complete description
Relevance to the project purposes Series of three experiments can address effect of mixture composition on flame propagation in obstructed geometry. Has primary importance for code validation.
Experimental data
Results of simulations
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Page last modified on December 19, 2008, at 12:38 PM