Details
| Original language | English |
|---|---|
| Pages (from-to) | 205-219 |
| Number of pages | 15 |
| Journal | Flow, Turbulence and Combustion |
| Volume | 81 |
| Issue number | 1-2 |
| Publication status | Published - Jul 2008 |
| Externally published | Yes |
Abstract
This work presents an experimental approach to the direct determination of the sub-grid scale scalar flux used in Large Eddy Simulation (LES). Two non-reacting jet-flow configurations were examined, one with the jet temperature similar to the ambient air temperature and one preheated jet. Hence data were obtained for varying viscosities. Each case was investigated for two different, high Reynolds numbers of 17,471 and 31,714. For the measurements of mixture fraction and flow velocity field a finest resolution of almost 100 μm was achieved. Thus both the sub-grid scale scalar flux as well as the spatially filtered quantities can be obtained from the same data set. The data were acquired by the simultaneous application of planar laser-induced fluorescence (LIF) and particle image velocimetry (PIV).
Keywords
- Large-eddy simulation, Scalar flux, Scalar transport, Sub-grid scale models, Turbulent mixing
ASJC Scopus subject areas
- Chemical Engineering(all)
- General Chemical Engineering
- Physics and Astronomy(all)
- General Physics and Astronomy
- Chemistry(all)
- Physical and Theoretical Chemistry
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In: Flow, Turbulence and Combustion, Vol. 81, No. 1-2, 07.2008, p. 205-219.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Experimental Determination of the Sub-grid Scale Scalar Flux in a Non-Reacting Jet-Flow
AU - Löffler, M.
AU - Pfadler, S.
AU - Beyrau, F.
AU - Leipertz, A.
AU - Dinkelacker, F.
AU - Huai, Y.
AU - Sadiki, A.
N1 - Funding information: Acknowledgement The authors gratefully acknowledge the financial support of parts of this work by the Erlangen graduate school in advanced optical technologies (SAOT), by the German National Science Foundation (DFG) and from the Bavarian Research Cooperation FORTVER, hosted by the Arbeitsgemein-schaft der Bayerischen Forschungsverbünde (abayfor).
PY - 2008/7
Y1 - 2008/7
N2 - This work presents an experimental approach to the direct determination of the sub-grid scale scalar flux used in Large Eddy Simulation (LES). Two non-reacting jet-flow configurations were examined, one with the jet temperature similar to the ambient air temperature and one preheated jet. Hence data were obtained for varying viscosities. Each case was investigated for two different, high Reynolds numbers of 17,471 and 31,714. For the measurements of mixture fraction and flow velocity field a finest resolution of almost 100 μm was achieved. Thus both the sub-grid scale scalar flux as well as the spatially filtered quantities can be obtained from the same data set. The data were acquired by the simultaneous application of planar laser-induced fluorescence (LIF) and particle image velocimetry (PIV).
AB - This work presents an experimental approach to the direct determination of the sub-grid scale scalar flux used in Large Eddy Simulation (LES). Two non-reacting jet-flow configurations were examined, one with the jet temperature similar to the ambient air temperature and one preheated jet. Hence data were obtained for varying viscosities. Each case was investigated for two different, high Reynolds numbers of 17,471 and 31,714. For the measurements of mixture fraction and flow velocity field a finest resolution of almost 100 μm was achieved. Thus both the sub-grid scale scalar flux as well as the spatially filtered quantities can be obtained from the same data set. The data were acquired by the simultaneous application of planar laser-induced fluorescence (LIF) and particle image velocimetry (PIV).
KW - Large-eddy simulation
KW - Scalar flux
KW - Scalar transport
KW - Sub-grid scale models
KW - Turbulent mixing
UR - http://www.scopus.com/inward/record.url?scp=48449103599&partnerID=8YFLogxK
U2 - 10.1007/s10494-007-9102-6
DO - 10.1007/s10494-007-9102-6
M3 - Article
AN - SCOPUS:48449103599
VL - 81
SP - 205
EP - 219
JO - Flow, Turbulence and Combustion
JF - Flow, Turbulence and Combustion
SN - 1386-6184
IS - 1-2
ER -