Test Data AC2-09: Difference between revisions

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==TEST CASE EXP1==
==TEST CASE EXP1==
===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
with defined Reynolds number of the fuel jet and  the  fuel  and  pilot
with defined Reynolds number of the fuel jet and  the  fuel  and  pilot
flame compositions as given in Table EXP-A.
flame compositions as given in Table EXP-A.

Revision as of 09:56, 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 EXP1

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

TEST CASE EXP2

(as per EXP 1)



Contributed by: Andrzej Boguslawski — Technical University of Częstochowa

Front Page

Description

Test Data

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© copyright ERCOFTAC 2024