TY - GEN
T1 - SCALE INTERACTION IN A MIXING LAYER. THE ROLE OF THE LARGE-SCALE GRADIENTS
AU - Fiscaletti, Daniele
AU - Attili, Antonio
AU - Bisetti, Fabrizio
AU - Elsinga, Gerrit E.
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: LaVision, Dantec Dynamics
PY - 2015/8/23
Y1 - 2015/8/23
N2 - The interaction between scales is investigated in a turbulent mixing layer. The large-scale amplitude modulation of the
small scales already observed in other works depends on the crosswise location. Large-scale positive fluctuations correlate with a stronger activity of the small scales on the low speed-side of the mixing layer, and a reduced activity on the high speed-side. However,
from physical considerations we would expect the scales to interact in a qualitatively similar way within the flow and across different turbulent flows. Therefore, instead of the large-scale fluctuations, the large-scale gradients modulation of the small scales has been additionally investigated.
AB - The interaction between scales is investigated in a turbulent mixing layer. The large-scale amplitude modulation of the
small scales already observed in other works depends on the crosswise location. Large-scale positive fluctuations correlate with a stronger activity of the small scales on the low speed-side of the mixing layer, and a reduced activity on the high speed-side. However,
from physical considerations we would expect the scales to interact in a qualitatively similar way within the flow and across different turbulent flows. Therefore, instead of the large-scale fluctuations, the large-scale gradients modulation of the small scales has been additionally investigated.
UR - http://hdl.handle.net/10754/576016
UR - http://www.etc15.nl/proceedings/proceedings/documents/263.pdf
M3 - Conference contribution
BT - 15th European Turbulence Conference 2015
ER -