Benchmark Experimental Database for Multiphase Combustion Model Input and Validation: Baseline Case. PROGRESS REPORT.
Benchmark Experimental Database for Multiphase
Combustion Model Input and Validation: Baseline Case.
Widmann, J. F.; Charagundla, S. R.; Presser, C.;
NISTIR 6286; Progress Report; 74 p. February 1999.
Available from: National Technical Information Service
(NTIS), Technology Administration, U.S. Department of
Commerce, Springfield, VA 22161.
1-800-553-6847 or 703-605-6000;
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combustion models; databases; validation; computational
fluid dynamics; FT-IR; spectroscopy; combustion
Experimental data were collected for the purpose of
validating multiphase combustion models and submodels. A
spray combustor was fabricated that permits well-defined
boundary and input conditions, and measurements were
carried out that characterize the fuel spray, wall
temperatures, gas temperatures and species
concentrations at the reactor exhaust. The operating
conditions for the baseline case were defined by NIST
personnel and industrial collaborators involved in model
development. A methanol spray, generated with a
pressure-jet nozzle, was studied with phase Doppler
interferometry to measure the size, velocity, number
density, and mass flux of the fuel droplets. Fourier
transform infrared spectroscopy was used to measure the
species concentrations in the reactor emissions. The
conversion of methanol in the reactor was found to be ~
80%. Inlet and outlet air velocity (including inlet air
swirl intensity) and heat flux measurements at the
reactor wall are planned. Flow field and velocity
temperature measurements are also planned to complete
the baseline database.