Large Eddy Simulation of Separated Flow over a Two-dimensional Hump with and without Control by Means of a Synthetic Slot-jet
Large Eddy Simulation of Separated Flow over a Two-dimensional Hump with and without Control by Means of a Synthetic Slot-jet
复制标题
二维驼峰上分离流的大涡模拟,有或无合成狭缝射流控制
DOI:
10.1007/s10494-009-9218-y
复制
发表时间:
2009
期刊:
影响因子:
--
通讯作者:
Avdis A
中科院分区:
文献类型:
--
作者:
Avdis A
Large Eddy Simulations for two flows separating from a two-dimensional hump in a duct are reported and discussed. The flows differ through the presence or absence of a synthetic slot-jet injected in a sinusoidal manner, i.e. at zero net mass-flow rate, close to the location of separation and intended to reduce (“control”) the extent of the separated region. Results reported include instantaneous visualisations, pre-multiplied spectra, wall-pressure distributions, streamfunction fields and profiles of velocity and second moments. For both flows, agreement between the simulations and the experimental results is generally good, especially in respect of the overall control effectiveness of the synthetic jet, despite the use of an approximate wall treatment bridging the viscous sublayer. Proper Orthogonal Decomposition of the velocity field is used to study structural features, and this shows that the most energetic mode in the base flow is representative of large streamwise vortices in the separated region, while in the controlled flow, most of the energetically dominant modes are associated with large spanwise vortices.
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DOI:
10.1016/j.ijheatfluidflow.2006.03.024
发表时间:
2006-10
影响因子:
2.6
作者:
F. Tessicini;L. Temmerman;M. Leschziner
通讯作者:
F. Tessicini;L. Temmerman;M. Leschziner
DOI:
10.1063/1.857955
发表时间:
1991-07-01
期刊:
PHYSICS OF FLUIDS A-FLUID DYNAMICS
影响因子:
--
作者:
GERMANO, M;PIOMELLI, U;CABOT, WH
通讯作者:
CABOT, WH
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
L. Temmerman
通讯作者:
L. Temmerman
DOI:
--
发表时间:
2006
期刊:
Proceeding of Fourth International Symposium on Turbulence and Shear Flow Phenomena
影响因子:
--
作者:
S. Šarić;S. Jakirlic;A. Djugum;C. Tropea
通讯作者:
C. Tropea
DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
D. Parekh;S. Palaniswamy;U. Goldberg
通讯作者:
U. Goldberg