Test Data AC2-09: Difference between revisions

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fluorescence (TPLIF).
fluorescence (TPLIF).


==TEST CASE EXP1==
==TEST CASE==
===Description of Experiment===
===Description of Experiment===
The Application Challenge includes just one test case,  Sandia  Flame  D
The Application Challenge includes just one test case,  Sandia  Flame  D
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===References===
===References===
<references/>
<references/>
==TEST CASE EXP2==
(as per '''EXP 1''')
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Revision as of 09:57, 29 April 2011

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SANDIA Flame D

Application Challenge AC2-09   © copyright ERCOFTAC 2024

Overview of Tests

The velocity measurements were performed with two-component fiber-optic laser Doppler anemometer (Dantec). All the details of the flow field measuring techniques applied in Sandia Flame D experiment are explained in[1]. Measured scalars for Sandia D Flame include temperature, mixture fraction, N2, O2, H2O, H2, CH4, CO, CO2, OH and NO. Experimental methods and measurement uncertainties are outlined in[1] Spontaneous Raman scattering of the beams from two Nd:YAG lasers (532 nm) was used to measure concentrations of the major species. The Rayleigh scattering signal was converted to temperature using a species-weighted scattering cross section, based on the Raman measurements. Linear laser-induced fluorescence (LIF) was used to measure OH and NO, and the fluorescence signals were corrected on a shot-to-shot basis for variations in Boltzmann fraction and collisional quenching rate. The concentration of CO was measured by Raman scattering and by two-photon laser-induced fluorescence (TPLIF).

TEST CASE

Description of Experiment

The Application Challenge includes just one test case, Sandia Flame D with defined Reynolds number of the fuel jet and the fuel and pilot flame compositions as given in Table EXP-A.

Boundary Data

Measurement Errors

The flow field measurement statistical errors are estimated in[1] as below 5% for the mean velocities and within 10% for fluctuating components. The scalar measurement errors are estimated and analyzed in[2]. The relative uncertainty (not including statistical noise or potential effects of spatial averaging) is estimated to be within 2% for the Raman measurements, 5% for OH, 5% for CO, and 10% for NO.

Measured Data

References

  1. 1.0 1.1 1.2 Schneider Ch., Dreizler A., Janicka J., Hassel E.P., "Flow field measurements of stable and locally extinguishing hydrocarbon-fuelled jet flames", Combustion and flames, 135, pp. 185-190, 2003
  2. Barlow R.S., Frank J.H., Proc. Comb. Inst., 27:1087,1998




Contributed by: Andrzej Boguslawski — Technical University of Częstochowa

Front Page

Description

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© copyright ERCOFTAC 2024