Abstract
| Original language | English |
|---|---|
| Title of host publication | Advances in turbulence 2 |
| Subtitle of host publication | Proceedings of the second European turbulence conference Berlin, August 30 – September 2, 1988 |
| Editors | Hans-Hermann Fernholz, Heinrich E. Fiedler |
| Place of Publication | Berlin |
| Publisher | Springer-Verlag |
| Pages | 186-191 |
| Number of pages | 6 |
| ISBN (Electronic) | 9783642838224 |
| ISBN (Print) | 9783642838248 |
| DOIs | |
| Publication status | Published - 1989 |
| Externally published | Yes |
| Event | Second European Turbulence Conference - Berlin, Germany Duration: 30 Aug 1988 → 2 Sep 1988 Conference number: 2nd |
Conference
| Conference | Second European Turbulence Conference |
|---|---|
| Country | Germany |
| City | Berlin |
| Period | 30/08/88 → 2/09/88 |
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Molecular and stratification effects on the evolution of concentration fluctuations in decaying homogeneous turbulence with transverse mean-concentration gradient. / Oduyemi, K.; Britter, R. E.
Advances in turbulence 2: Proceedings of the second European turbulence conference Berlin, August 30 – September 2, 1988. ed. / Hans-Hermann Fernholz; Heinrich E. Fiedler. Berlin : Springer-Verlag, 1989. p. 186-191.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Molecular and stratification effects on the evolution of concentration fluctuations in decaying homogeneous turbulence with transverse mean-concentration gradient
AU - Oduyemi, K.
AU - Britter, R. E.
PY - 1989
Y1 - 1989
N2 - Transport of a passive scalar contaminant in nearly isotropic non-decaying turbulence was first studied theoretically by Corrsinl, and in that study it was predicted that an imposed passive linear cross-stream mean temperature profile will maintain itself and will be independent of the downstream distance. Corrsin’s prediction of constancy of the cross-stream temperature gradient, ß, has been confirmed experimentally for decaying turbulent flows2,3,4. Despite the constancy of ß there has been confusing experimental data on the streamwise evolution of passive scalar contaminants. The heated grid method used by Wiskind2 to study the streamwise evolution of passive scalar has been found to be far from ideal because significant transverse variation of temperature variance was observed in Wiskind’s data3,4. The use of differentially heated screens downstream of a grid3,4 has aided the study of the streamwise evolution of passive scalar fluctuations, but there still remains some uncertainties in the physics of this type of flow particularly at large decay times.
AB - Transport of a passive scalar contaminant in nearly isotropic non-decaying turbulence was first studied theoretically by Corrsinl, and in that study it was predicted that an imposed passive linear cross-stream mean temperature profile will maintain itself and will be independent of the downstream distance. Corrsin’s prediction of constancy of the cross-stream temperature gradient, ß, has been confirmed experimentally for decaying turbulent flows2,3,4. Despite the constancy of ß there has been confusing experimental data on the streamwise evolution of passive scalar contaminants. The heated grid method used by Wiskind2 to study the streamwise evolution of passive scalar has been found to be far from ideal because significant transverse variation of temperature variance was observed in Wiskind’s data3,4. The use of differentially heated screens downstream of a grid3,4 has aided the study of the streamwise evolution of passive scalar fluctuations, but there still remains some uncertainties in the physics of this type of flow particularly at large decay times.
U2 - 10.1007/978-3-642-83822-4_30
DO - 10.1007/978-3-642-83822-4_30
M3 - Conference contribution
SN - 9783642838248
SP - 186
EP - 191
BT - Advances in turbulence 2
A2 - Fernholz, Hans-Hermann
A2 - Fiedler, Heinrich E.
PB - Springer-Verlag
CY - Berlin
ER -