Experimental investigation of global structures in an incompressible cavity flow using time-resolved PIV
Identifieur interne :
001B47 ( PascalFrancis/Corpus );
précédent :
001B46;
suivant :
001B48
Experimental investigation of global structures in an incompressible cavity flow using time-resolved PIV
Auteurs : J. Basley ;
L. R. Pastur ;
F. Lusseyran ;
T. M. Faure ;
N. DelpratSource :
-
Experiments in fluids [ 0723-4864 ] ; 2011.
RBID : Pascal:11-0302685
Descripteurs français
- Pascal (Inist)
- Instabilité hydrodynamique,
Ecoulement bidimensionnel,
Fluide incompressible,
Aéroacoustique,
Résonateur cavité,
Etude expérimentale,
Vélocimétrie image particule,
Mesure vitesse,
Installation essai,
Couche cisaillée,
4780,
4328,
4720F.
English descriptors
Abstract
Open-cavity flows are known to exhibit a few well-defined peaks in the power spectral distribution of velocity or pressure signals recorded close to the impinging corner. The measured frequencies are in fact common to the entire flow, indicating some global organisation of the flow. The modal structures, i.e. the spatial distribution of the most characteristic frequencies in the flow, are experimentally investigated using time-resolved particle image velocimetry. Each spatial point, of the resulting two-dimension-two-component (2D-2C) velocity fields, provides time-resolved series of the velocity components Vx and Vv, in a (x, y) streamwise plane orthogonal to cavity bottom. Each local time-series is Fourier-transformed, such as to provide the spectral distribution at any point of the PIV-plane. One finally obtains the spatial structure associated with any frequency of the Fourier spectrum. Some of the modal spatial structures are expected to represent the nonlinear saturation of the global modes, against which the stationary solution of the Navier-Stokes equations may have become linearly unstable. Following Rowley et al. (J Fluid Mech 641:115-127, 2009), our experimental modal structures may even correspond to the Koopman modes of this incompressible cavity flow.
Notice en format standard (ISO 2709)
Pour connaître la documentation sur le format Inist Standard.
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| A08 | 01 | 1 | ENG | @1 Experimental investigation of global structures in an incompressible cavity flow using time-resolved PIV |
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| A09 | 01 | 1 | ENG | @1 Eighth International Symposium on Particle Image Velocimetry (PIV'09) |
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| A11 | 01 | 1 | | @1 BASLEY (J.) |
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| A11 | 02 | 1 | | @1 PASTUR (L. R.) |
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| A11 | 03 | 1 | | @1 LUSSEYRAN (F.) |
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| A11 | 04 | 1 | | @1 FAURE (T. M.) |
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| A11 | 05 | 1 | | @1 DELPRAT (N.) |
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| A12 | 01 | 1 | | @1 SORIA (Julio) @9 ed. |
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| A12 | 02 | 1 | | @1 CLEMENS (Noel T.) @9 ed. |
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| A14 | 01 | | | @1 LIMSI-CNRS, BP 133 @2 91403 Orsay @3 FRA @Z 2 aut. @Z 3 aut. @Z 4 aut. @Z 5 aut. |
|---|
| A14 | 02 | | | @1 Université Paris, Sud 11 @2 91405 Orsay @3 FRA @Z 1 aut. @Z 2 aut. |
|---|
| A14 | 03 | | | @1 Université Pierre et Marie Curie, 4 place Jussieu @2 75005 Paris @3 FRA @Z 4 aut. @Z 5 aut. |
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| A15 | 01 | | | @1 Laboratory for Turbulence Research in Aerospace and Combustion, Department of Mechanical and Aerospace Engineering, Monash University, Clayton Campus @2 Melbourne, VIC 3800 @3 AUS @Z 1 aut. |
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| A15 | 02 | | | @1 Department of Aerospace Engineering and Engineering Mechanics, The University of Texas at Austin, 1 University Station C0600 @2 Austin, TX 78712 @3 USA @Z 2 aut. |
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| A18 | 01 | 1 | | @1 Monash University @2 Victoria @3 AUS @9 org-cong. |
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| A20 | | | | @1 905-918 |
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| A21 | | | | @1 2011 |
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| A23 | 01 | | | @0 ENG |
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| A43 | 01 | | | @1 INIST @2 19904 @5 354000192957660110 |
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| A44 | | | | @0 0000 @1 © 2011 INIST-CNRS. All rights reserved. |
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| A45 | | | | @0 3/4 p. |
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| A47 | 01 | 1 | | @0 11-0302685 |
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| A60 | | | | @1 P @2 C |
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| A61 | | | | @0 A |
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| A64 | 01 | 1 | | @0 Experiments in fluids |
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| A66 | 01 | | | @0 DEU |
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| C01 | 01 | | ENG | @0 Open-cavity flows are known to exhibit a few well-defined peaks in the power spectral distribution of velocity or pressure signals recorded close to the impinging corner. The measured frequencies are in fact common to the entire flow, indicating some global organisation of the flow. The modal structures, i.e. the spatial distribution of the most characteristic frequencies in the flow, are experimentally investigated using time-resolved particle image velocimetry. Each spatial point, of the resulting two-dimension-two-component (2D-2C) velocity fields, provides time-resolved series of the velocity components Vx and Vv, in a (x, y) streamwise plane orthogonal to cavity bottom. Each local time-series is Fourier-transformed, such as to provide the spectral distribution at any point of the PIV-plane. One finally obtains the spatial structure associated with any frequency of the Fourier spectrum. Some of the modal spatial structures are expected to represent the nonlinear saturation of the global modes, against which the stationary solution of the Navier-Stokes equations may have become linearly unstable. Following Rowley et al. (J Fluid Mech 641:115-127, 2009), our experimental modal structures may even correspond to the Koopman modes of this incompressible cavity flow. |
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| C03 | 02 | X | FRE | @0 Ecoulement bidimensionnel @5 03 |
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| C03 | 02 | X | ENG | @0 Two dimensional flow @5 03 |
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| C03 | 02 | X | SPA | @0 Flujo bidimensional @5 03 |
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| C03 | 03 | X | FRE | @0 Fluide incompressible @5 06 |
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| C03 | 03 | X | SPA | @0 Fluido incompresible @5 06 |
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| C03 | 04 | 3 | ENG | @0 Aeroacoustics @5 08 |
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| C03 | 05 | 3 | FRE | @0 Résonateur cavité @5 09 |
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| C03 | 05 | 3 | ENG | @0 Cavity resonators @5 09 |
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| C03 | 06 | 3 | FRE | @0 Etude expérimentale @5 15 |
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| C03 | 06 | 3 | ENG | @0 Experimental study @5 15 |
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| C03 | 07 | 3 | ENG | @0 Particle image velocimetry @5 17 |
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| C03 | 08 | 3 | FRE | @0 Mesure vitesse @5 18 |
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| C03 | 08 | 3 | ENG | @0 Velocity measurement @5 18 |
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| C03 | 09 | 3 | FRE | @0 Installation essai @5 19 |
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| C03 | 09 | 3 | ENG | @0 Test facilities @5 19 |
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| N21 | | | | @1 206 |
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| pR |
| A30 | 01 | 1 | ENG | @1 International Symposium on Particle Image Velocimetry (PIV'09) @3 Melbourne AUS @4 2009-08-25 |
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Format Inist (serveur)
| NO : | PASCAL 11-0302685 INIST |
|---|
| ET : | Experimental investigation of global structures in an incompressible cavity flow using time-resolved PIV |
|---|
| AU : | BASLEY (J.); PASTUR (L. R.); LUSSEYRAN (F.); FAURE (T. M.); DELPRAT (N.); SORIA (Julio); CLEMENS (Noel T.) |
|---|
| AF : | LIMSI-CNRS, BP 133/91403 Orsay/France (2 aut., 3 aut., 4 aut., 5 aut.); Université Paris, Sud 11/91405 Orsay/France (1 aut., 2 aut.); Université Pierre et Marie Curie, 4 place Jussieu/75005 Paris/France (4 aut., 5 aut.); Laboratory for Turbulence Research in Aerospace and Combustion, Department of Mechanical and Aerospace Engineering, Monash University, Clayton Campus/Melbourne, VIC 3800/Australie (1 aut.); Department of Aerospace Engineering and Engineering Mechanics, The University of Texas at Austin, 1 University Station C0600/Austin, TX 78712/Etats-Unis (2 aut.) |
|---|
| DT : | Publication en série; Congrès; Niveau analytique |
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| SO : | Experiments in fluids; ISSN 0723-4864; Coden EXFLDU; Allemagne; Da. 2011; Vol. 50; No. 4; Pp. 905-918; Bibl. 3/4 p. |
|---|
| LA : | Anglais |
|---|
| EA : | Open-cavity flows are known to exhibit a few well-defined peaks in the power spectral distribution of velocity or pressure signals recorded close to the impinging corner. The measured frequencies are in fact common to the entire flow, indicating some global organisation of the flow. The modal structures, i.e. the spatial distribution of the most characteristic frequencies in the flow, are experimentally investigated using time-resolved particle image velocimetry. Each spatial point, of the resulting two-dimension-two-component (2D-2C) velocity fields, provides time-resolved series of the velocity components Vx and Vv, in a (x, y) streamwise plane orthogonal to cavity bottom. Each local time-series is Fourier-transformed, such as to provide the spectral distribution at any point of the PIV-plane. One finally obtains the spatial structure associated with any frequency of the Fourier spectrum. Some of the modal spatial structures are expected to represent the nonlinear saturation of the global modes, against which the stationary solution of the Navier-Stokes equations may have become linearly unstable. Following Rowley et al. (J Fluid Mech 641:115-127, 2009), our experimental modal structures may even correspond to the Koopman modes of this incompressible cavity flow. |
|---|
| CC : | 001B40G80; 001B40C28; 001B40G20F |
|---|
| FD : | Instabilité hydrodynamique; Ecoulement bidimensionnel; Fluide incompressible; Aéroacoustique; Résonateur cavité; Etude expérimentale; Vélocimétrie image particule; Mesure vitesse; Installation essai; Couche cisaillée; 4780; 4328; 4720F |
|---|
| ED : | Hydrodynamic instability; Two dimensional flow; Incompressible fluid; Aeroacoustics; Cavity resonators; Experimental study; Particle image velocimetry; Velocity measurement; Test facilities; Shear layer |
|---|
| SD : | Flujo bidimensional; Fluido incompresible; Capa cizallada |
|---|
| LO : | INIST-19904.354000192957660110 |
|---|
| ID : | 11-0302685 |
|---|
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<term>Particle image velocimetry</term>
<term>Shear layer</term>
<term>Test facilities</term>
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<term>Etude expérimentale</term>
<term>Vélocimétrie image particule</term>
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</keywords><front><div type="abstract" xml:lang="en">Open-cavity flows are known to exhibit a few well-defined peaks in the power spectral distribution of velocity or pressure signals recorded close to the impinging corner. The measured frequencies are in fact common to the entire flow, indicating some global organisation of the flow. The modal structures, i.e. the spatial distribution of the most characteristic frequencies in the flow, are experimentally investigated using time-resolved particle image velocimetry. Each spatial point, of the resulting two-dimension-two-component (2D-2C) velocity fields, provides time-resolved series of the velocity components V<sub>x</sub>
and V<sub>v</sub>
, in a (x, y) streamwise plane orthogonal to cavity bottom. Each local time-series is Fourier-transformed, such as to provide the spectral distribution at any point of the PIV-plane. One finally obtains the spatial structure associated with any frequency of the Fourier spectrum. Some of the modal spatial structures are expected to represent the nonlinear saturation of the global modes, against which the stationary solution of the Navier-Stokes equations may have become linearly unstable. Following Rowley et al. (J Fluid Mech 641:115-127, 2009), our experimental modal structures may even correspond to the Koopman modes of this incompressible cavity flow.</div><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0723-4864</s0>
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</fA03><fA08 i1="01" i2="1" l="ENG"><s1>Experimental investigation of global structures in an incompressible cavity flow using time-resolved PIV</s1>
</fA08><fA09 i1="01" i2="1" l="ENG"><s1>Eighth International Symposium on Particle Image Velocimetry (PIV'09)</s1>
</fA09><fA11 i1="01" i2="1"><s1>BASLEY (J.)</s1>
</fA11><fA11 i1="02" i2="1"><s1>PASTUR (L. R.)</s1>
</fA11><fA11 i1="03" i2="1"><s1>LUSSEYRAN (F.)</s1>
</fA11><fA11 i1="04" i2="1"><s1>FAURE (T. M.)</s1>
</fA11><fA11 i1="05" i2="1"><s1>DELPRAT (N.)</s1>
</fA11><fA12 i1="01" i2="1"><s1>SORIA (Julio)</s1>
<s9>ed.</s9>
</fA12><fA12 i1="02" i2="1"><s1>CLEMENS (Noel T.)</s1>
<s9>ed.</s9>
</fA12><fA14 i1="01"><s1>LIMSI-CNRS, BP 133</s1>
<s2>91403 Orsay</s2>
<s3>FRA</s3>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
</fA14><fA14 i1="02"><s1>Université Paris, Sud 11</s1>
<s2>91405 Orsay</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
</fA14><fA14 i1="03"><s1>Université Pierre et Marie Curie, 4 place Jussieu</s1>
<s2>75005 Paris</s2>
<s3>FRA</s3>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
</fA14><fA15 i1="01"><s1>Laboratory for Turbulence Research in Aerospace and Combustion, Department of Mechanical and Aerospace Engineering, Monash University, Clayton Campus</s1>
<s2>Melbourne, VIC 3800</s2>
<s3>AUS</s3>
<sZ>1 aut.</sZ>
</fA15><fA15 i1="02"><s1>Department of Aerospace Engineering and Engineering Mechanics, The University of Texas at Austin, 1 University Station C0600</s1>
<s2>Austin, TX 78712</s2>
<s3>USA</s3>
<sZ>2 aut.</sZ>
</fA15><fA18 i1="01" i2="1"><s1>Monash University</s1>
<s2>Victoria</s2>
<s3>AUS</s3>
<s9>org-cong.</s9>
</fA18><fA20><s1>905-918</s1>
</fA20><fA21><s1>2011</s1>
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</fA45><fA47 i1="01" i2="1"><s0>11-0302685</s0>
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</fA66><fC01 i1="01" l="ENG"><s0>Open-cavity flows are known to exhibit a few well-defined peaks in the power spectral distribution of velocity or pressure signals recorded close to the impinging corner. The measured frequencies are in fact common to the entire flow, indicating some global organisation of the flow. The modal structures, i.e. the spatial distribution of the most characteristic frequencies in the flow, are experimentally investigated using time-resolved particle image velocimetry. Each spatial point, of the resulting two-dimension-two-component (2D-2C) velocity fields, provides time-resolved series of the velocity components V<sub>x</sub>
and V<sub>v</sub>
, in a (x, y) streamwise plane orthogonal to cavity bottom. Each local time-series is Fourier-transformed, such as to provide the spectral distribution at any point of the PIV-plane. One finally obtains the spatial structure associated with any frequency of the Fourier spectrum. Some of the modal spatial structures are expected to represent the nonlinear saturation of the global modes, against which the stationary solution of the Navier-Stokes equations may have become linearly unstable. Following Rowley et al. (J Fluid Mech 641:115-127, 2009), our experimental modal structures may even correspond to the Koopman modes of this incompressible cavity flow.</s0><fC02 i1="01" i2="3"><s0>001B40G80</s0>
</fC02><fC02 i1="02" i2="X"><s0>001B40C28</s0>
</fC02><fC02 i1="03" i2="3"><s0>001B40G20F</s0>
</fC02><fC03 i1="01" i2="3" l="FRE"><s0>Instabilité hydrodynamique</s0>
<s5>02</s5>
</fC03><fC03 i1="01" i2="3" l="ENG"><s0>Hydrodynamic instability</s0>
<s5>02</s5>
</fC03><fC03 i1="02" i2="X" l="FRE"><s0>Ecoulement bidimensionnel</s0>
<s5>03</s5>
</fC03><fC03 i1="02" i2="X" l="ENG"><s0>Two dimensional flow</s0>
<s5>03</s5>
</fC03><fC03 i1="02" i2="X" l="SPA"><s0>Flujo bidimensional</s0>
<s5>03</s5>
</fC03><fC03 i1="03" i2="X" l="FRE"><s0>Fluide incompressible</s0>
<s5>06</s5>
</fC03><fC03 i1="03" i2="X" l="ENG"><s0>Incompressible fluid</s0>
<s5>06</s5>
</fC03><fC03 i1="03" i2="X" l="SPA"><s0>Fluido incompresible</s0>
<s5>06</s5>
</fC03><fC03 i1="04" i2="3" l="FRE"><s0>Aéroacoustique</s0>
<s5>08</s5>
</fC03><fC03 i1="04" i2="3" l="ENG"><s0>Aeroacoustics</s0>
<s5>08</s5>
</fC03><fC03 i1="05" i2="3" l="FRE"><s0>Résonateur cavité</s0>
<s5>09</s5>
</fC03><fC03 i1="05" i2="3" l="ENG"><s0>Cavity resonators</s0>
<s5>09</s5>
</fC03><fC03 i1="06" i2="3" l="FRE"><s0>Etude expérimentale</s0>
<s5>15</s5>
</fC03><fC03 i1="06" i2="3" l="ENG"><s0>Experimental study</s0>
<s5>15</s5>
</fC03><fC03 i1="07" i2="3" l="FRE"><s0>Vélocimétrie image particule</s0>
<s5>17</s5>
</fC03><fC03 i1="07" i2="3" l="ENG"><s0>Particle image velocimetry</s0>
<s5>17</s5>
</fC03><fC03 i1="08" i2="3" l="FRE"><s0>Mesure vitesse</s0>
<s5>18</s5>
</fC03><fC03 i1="08" i2="3" l="ENG"><s0>Velocity measurement</s0>
<s5>18</s5>
</fC03><fC03 i1="09" i2="3" l="FRE"><s0>Installation essai</s0>
<s5>19</s5>
</fC03><fC03 i1="09" i2="3" l="ENG"><s0>Test facilities</s0>
<s5>19</s5>
</fC03><fC03 i1="10" i2="X" l="FRE"><s0>Couche cisaillée</s0>
<s5>29</s5>
</fC03><fC03 i1="10" i2="X" l="ENG"><s0>Shear layer</s0>
<s5>29</s5>
</fC03><fC03 i1="10" i2="X" l="SPA"><s0>Capa cizallada</s0>
<s5>29</s5>
</fC03><fC03 i1="11" i2="3" l="FRE"><s0>4780</s0>
<s4>INC</s4>
<s5>56</s5>
</fC03><fC03 i1="12" i2="3" l="FRE"><s0>4328</s0>
<s4>INC</s4>
<s5>57</s5>
</fC03><fC03 i1="13" i2="3" l="FRE"><s0>4720F</s0>
<s4>INC</s4>
<s5>58</s5>
</fC03><fN21><s1>206</s1>
</fN21><pR><fA30 i1="01" i2="1" l="ENG"><s1>International Symposium on Particle Image Velocimetry (PIV'09)</s1>
<s3>Melbourne AUS</s3>
<s4>2009-08-25</s4>
</fA30><server><NO>PASCAL 11-0302685 INIST</NO>
<ET>Experimental investigation of global structures in an incompressible cavity flow using time-resolved PIV</ET>
<AU>BASLEY (J.); PASTUR (L. R.); LUSSEYRAN (F.); FAURE (T. M.); DELPRAT (N.); SORIA (Julio); CLEMENS (Noel T.)</AU>
<AF>LIMSI-CNRS, BP 133/91403 Orsay/France (2 aut., 3 aut., 4 aut., 5 aut.); Université Paris, Sud 11/91405 Orsay/France (1 aut., 2 aut.); Université Pierre et Marie Curie, 4 place Jussieu/75005 Paris/France (4 aut., 5 aut.); Laboratory for Turbulence Research in Aerospace and Combustion, Department of Mechanical and Aerospace Engineering, Monash University, Clayton Campus/Melbourne, VIC 3800/Australie (1 aut.); Department of Aerospace Engineering and Engineering Mechanics, The University of Texas at Austin, 1 University Station C0600/Austin, TX 78712/Etats-Unis (2 aut.)</AF>
<DT>Publication en série; Congrès; Niveau analytique</DT>
<SO>Experiments in fluids; ISSN 0723-4864; Coden EXFLDU; Allemagne; Da. 2011; Vol. 50; No. 4; Pp. 905-918; Bibl. 3/4 p.</SO>
<LA>Anglais</LA>
<EA>Open-cavity flows are known to exhibit a few well-defined peaks in the power spectral distribution of velocity or pressure signals recorded close to the impinging corner. The measured frequencies are in fact common to the entire flow, indicating some global organisation of the flow. The modal structures, i.e. the spatial distribution of the most characteristic frequencies in the flow, are experimentally investigated using time-resolved particle image velocimetry. Each spatial point, of the resulting two-dimension-two-component (2D-2C) velocity fields, provides time-resolved series of the velocity components V<sub>x</sub>
and V<sub>v</sub>
, in a (x, y) streamwise plane orthogonal to cavity bottom. Each local time-series is Fourier-transformed, such as to provide the spectral distribution at any point of the PIV-plane. One finally obtains the spatial structure associated with any frequency of the Fourier spectrum. Some of the modal spatial structures are expected to represent the nonlinear saturation of the global modes, against which the stationary solution of the Navier-Stokes equations may have become linearly unstable. Following Rowley et al. (J Fluid Mech 641:115-127, 2009), our experimental modal structures may even correspond to the Koopman modes of this incompressible cavity flow.</EA><CC>001B40G80; 001B40C28; 001B40G20F</CC>
<FD>Instabilité hydrodynamique; Ecoulement bidimensionnel; Fluide incompressible; Aéroacoustique; Résonateur cavité; Etude expérimentale; Vélocimétrie image particule; Mesure vitesse; Installation essai; Couche cisaillée; 4780; 4328; 4720F</FD>
<ED>Hydrodynamic instability; Two dimensional flow; Incompressible fluid; Aeroacoustics; Cavity resonators; Experimental study; Particle image velocimetry; Velocity measurement; Test facilities; Shear layer</ED>
<SD>Flujo bidimensional; Fluido incompresible; Capa cizallada</SD>
<LO>INIST-19904.354000192957660110</LO>
<ID>11-0302685</ID>
</server>
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