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Benchmark Experimental Database for Multiphase Combustion Model Input and Validation: Baseline Case



J F. Widmann, R Charagundla, Cary Presser, A N. Heckert


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. Fouurier 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 equal to} 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.
NIST Interagency/Internal Report (NISTIR) - 6286
Report Number


CFD model validation, FTIR spectroscopy, multiphase combustion, phase Doppler interferometry, spray combustion


Widmann, J. , Charagundla, R. , Presser, C. and Heckert, A. (1999), Benchmark Experimental Database for Multiphase Combustion Model Input and Validation: Baseline Case, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD (Accessed June 24, 2024)


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Created January 31, 1999, Updated October 12, 2021