TY - GEN
T1 - Response of periodically modulated turbulence
AU - Cekli, E.H.
AU - Water, van de, W.
PY - 2009
Y1 - 2009
N2 - Many turbulent flows are subject to periodic modulation, examples are the flow in an internal combustion engine, the pulsatile blood flow through arteries, and geophysical flows driven by periodic tides. When the modulation is slow, the turbulence will adjust adiabatically, but when the modulation period comes close to an internal time scale of the flow, the turbulence may resonate with the driving. Such a time scale may be the large-eddy turnover time. The possibility of resonance is intriguing as one may object that turbulence does not have a single time scale, but a continuum of strongly fluctuating times.
AB - Many turbulent flows are subject to periodic modulation, examples are the flow in an internal combustion engine, the pulsatile blood flow through arteries, and geophysical flows driven by periodic tides. When the modulation is slow, the turbulence will adjust adiabatically, but when the modulation period comes close to an internal time scale of the flow, the turbulence may resonate with the driving. Such a time scale may be the large-eddy turnover time. The possibility of resonance is intriguing as one may object that turbulence does not have a single time scale, but a continuum of strongly fluctuating times.
U2 - 10.1007/978-3-642-03085-7_58
DO - 10.1007/978-3-642-03085-7_58
M3 - Conference contribution
SN - 978-3-642-03084-0
T3 - Springer Proceedings in Physics
SP - 237
EP - 240
BT - Advances in Turbulence XII: Proceedings of the 12th EUROMECH European Turbulence Conference, 7-10 September, 2009, Marburg, Germany
A2 - Eckhardt, B.
PB - Springer
CY - Berlin
T2 - conference; 12th EUROMECH European Turbulence Conference; 2009-09-07; 2009-09-10
Y2 - 7 September 2009 through 10 September 2009
ER -