| Experiment ID
| HYCOM-MC012
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| 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.
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| What phenomena were studied
| Flame acceleration in the presence of obstructed channel
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| What phenomena / effects can be studied
| Steady-state sonic flame
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| 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.
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| Test variables
| Hydrogen concentration
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| Data description / Data completeness
| All pressure and photo-diode recordings in digital form
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| Data availability
| Publicly accessible
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| Source of data / Reference
| Technical Report: EU Project HYCOM, 2004 (to be published)
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| Why were chosen
| Very well instrumented, complete description
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| 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.
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| Experimental data
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| Results of simulations
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