Skip to main content
Fachgebiete
Automobil + Motoren Bauwesen + Immobilien Business IT + Informatik Elektrotechnik + Elektronik Energie + Nachhaltigkeit Finance + Banking Management + Führung Marketing + Vertrieb Maschinenbau + Werkstoffe Versicherung + Risiko
DE
EN
Bücher
Zeitschriften
Themenseiten
Organisationspsychologie Projektmanagement Marketing Smart Manufacturing
Weitere Formate
Podcasts Webinare Technik Webinare Wirtschaft Kongresse Veranstaltungskalender Awards
Jetzt Einzelzugang starten
Zugang für Unternehmen
Referenzkunden
SLX-Digitalkonferenz: Zukunftswerkstatt 2024

Mehr Umsatz mit Top-Kontakten

Am 7. Mai erfahren Sie, wie Vertriebsteams Leadgenerierung, Leadnurturing und Leadstrategien effizient steuern können.
Erweiterte Suche
Anmelden
nach oben
Experiments in Fluids
Erschienen in: Experiments in Fluids 12/2013

01.12.2013 | Research Article

Wave patterns generated by an axisymmetric obstacle in a two-layer flow

verfasst von: L. Lacaze, A. Paci, E. Cid, S. Cazin, O. Eiff, J. G. Esler, E. R. Johnson

Erschienen in: Experiments in Fluids | Ausgabe 12/2013

Einloggen

Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.

search-config
loading …

Abstract

Gravity waves generated by a moving obstacle in a two-layer stratified fluid are investigated. The experimental configuration is three-dimensional with an axisymmetric obstacle which is towed in one of the two layers. The experimental method used in the present study is based on a stereoscopic technique allowing the 3D reconstruction of the interface between the two layers. Investigation into the wave pattern as a function of the Froude number, Fr, based on the relative density of the fluid layers and the velocity of the towed obstacle is presented. Specific attention is paid to the transcritical regime for which Fr is close to one. Potential energy trapped in the wave field patterns is also extracted from the experimental results and is analyzed as a function of both the Froude number, Fr, and the transcritical similarity parameter \(\varGamma\). In particular, a remarkable increase in the potential energy around Fr = 1 is observed and a scaling allowing to assemble data resulting from different experimental parameters is proposed.
Vorheriger Artikel Analysis of flow and density oscillations in a swirl-stabilized flame employing highly resolving optical measurement techniques
Nächster Artikel Scalar gradient trajectory measurements using high-frequency cinematographic planar Rayleigh scattering

Sie haben noch keine Lizenz? Dann Informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Jetzt informieren

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

Jetzt informieren
Fußnoten
1
As obstacles are towed upside down, they cannot be fully immersed, so effective h m 0 is slightly smaller than the values given above and is 7.5 cm (resp. 11.5 cm) for obstacle A (resp. obstacle B).
 
2
t = 0 is defined here for the frame in which the obstacle center coincides with the center of the field of view.
 
3
It is verified that the obtained value of x m is always smaller than the distance at which reflective waves invade the domain.
 
Literatur
Apel J, Holbrook J, Liu A, Tsai J (1985) The Sulu sea internal soliton experiment. J Phys Oceanogr 15(12):1625–1651CrossRef
Astruc D, Cazin S, Cid E, Eiff O, Lacaze L, Robin P, Toublanc F, Cáceres I (2012) A stereoscopic method for rapid monitoring of the spatio-temporal evolution of the sand-bed elevation in the swash zone. Coast Eng 60:1–20CrossRef
Benetazzo A (2006) Measurements of short water waves using stereo matched image sequences. Coast Eng 53:1013CrossRef
Cech J, Sara R (2007) Efficient sampling of disparity space for fast and accurate matching. In: Proceedings of BenCOS Workshop CVPR
Chatellier L, Jarny S, Gibouin F, David L (2010) Stereoscopic measurement of free surface flows. In: 14th international conference on experimental mechanics, Poitiers, France
Crapper GD (1967) Ship waves in a stratified ocean. J Fluid Mech 29:667CrossRef
de Vries S, Hill DF, de Schipper MA, Stive MJF (2011) Remote sensing of surf zone waves using stereo imaging. Coast Eng 58:239CrossRef
Douxchamps D, Devriendt D, Capart H, Craeye C, Macq B, Zech Y (2005) Stereoscopic and velocimetric reconstructions of the free surface topography of antidune flows. Exp Fluids 39:533CrossRef
Esler JG, Rump OJ, Johnson ER (2007) Non-dispersive and weakly dispersive single-layer flow over an axisymmetric obstacle: the equivalent aerofoil formulation. J Fluid Mech 574:209MathSciNetCrossRefMATH
Goler RA, Reeder MJ (2004) The generation of the morning glory. J Atmos Sci 61:1360–1376CrossRef
Hartley RI, Zisserman A (2004) Multiple view geometry in computer vision. Cambridge University Press, CambridgeCrossRefMATH
Jehle M, Jarny S, David L (2008) Différentes approches pour la mesure d’interfaces et de surface libre. In: 11ème Congrès Francophone de Techniques Lasers, Poitiers, France. p 225. (in French)
Johnson ER, Vilenski GG (2005) Two-dimensional leaps in near-critical flow over isolated orography. Proc R Soc Lond A 61(2064):3747–3763MathSciNetCrossRef
Johnson ER, Esler JG, Rump OJ, Sommeria J, Vilenski GG (2006) Orographically generated nonlinear waves in rotating and non-rotating two-layer flow . Proc R Soc Lond A 462(2065):3–20MathSciNetCrossRefMATH
Knigge C, Etling D, Paci A, Eiff O (2010) Laboratory experiments on mountain induced rotors. Q J R Meteorol Soc 136:442–450CrossRef
Li X, Dong C, Clemente-Colón P, Pichel WG, Friedman KS (2004) Synthetic aperture radar observation of the sea surface imprints of upstream atmospheric solitons generated by flow impeded by an island. J Geophys Res 109. doi:10.​1029/​2003JC002168
Lighthill G (1978) Waves in fluids. Cambridge university press, CambridgeMATH
Maxworthy T, Chabert d’Hieres H, Didelle H (1984) The generation and propagation of internal gravity waves in a rotating fluid. J Geophys Res 89: doi:10.​1029/​JC089iC04p06383
Mercier MJ, Garnier NB, Dauxois T (2008) Reflexion and diffraction of internal waves analyzed with the Hilbert transform. Phys Fluids 20:086601CrossRef
Mercier MJ, Mathur M, Gostiaux L, Gerkema T, Magalhes JM, Da Silva JCB, Dauxois T (2012) Soliton generation by internal tidal beams impinging on a pycnocline: laboratory experiments. J Fluid Mech 704:37–60CrossRefMATH
Munk W, Wunsch C (1998) Abyssal recipes II : energetics of tidal and wind mixing. Deep Sea Res Part I Oceanogr Res Pap 45(12):1977–2010CrossRef
New A L, Pingree RD (1992) Local generation of internal soliton packets in the central Bay of Biscay. Deep Sea Res Part A Oceanogr Res Pap 39(9):1521–1534CrossRef
Porter A, Smyth NF (2002) Modelling the morning glory of the Gulf of Carpentaria. J Fluid Mech 454:1–20CrossRefMATH
Rabaud M, Moisy F (2013) Ship wakes: Kelvin or Mach angle. Phys Rev Lett 110:214503CrossRef
Smith RB (1979) The influence of mountains on the atmosphere. Adv Geophys 33:87–230CrossRef
Tailleux R (2009) On the energetics of stratified turbulent mixing, irreversible thermodynamics, boussinesq models and the ocean heat engine controversy. J Fluid Mech 638:339–382CrossRefMATH
Schar C, Smith RB (1993) Shallow-water flow past an isolated topography. Part I: Vorticity production and wake formation. J Atmos Sci 50:1373–1400MathSciNetCrossRef
Wehausen JV (1973) The wave resistance of ships. Adv Appl Mech 13:93–245CrossRef
Wells H, Vosper SB (2010) The accuracy of linear theory for predicting mountain-wave drag: implications for parametrization schemes. Q J R Meteorol Soc 136:429–441
Metadaten
Titel
Wave patterns generated by an axisymmetric obstacle in a two-layer flow
verfasst von
L. Lacaze
A. Paci
E. Cid
S. Cazin
O. Eiff
J. G. Esler
E. R. Johnson
Publikationsdatum
01.12.2013
Verlag
Springer Berlin Heidelberg
Erschienen in
Experiments in Fluids / Ausgabe 12/2013
Print ISSN: 0723-4864
Elektronische ISSN: 1432-1114
DOI
https://doi.org/10.1007/s00348-013-1618-z

Weitere Artikel der Ausgabe 12/2013

Experiments in Fluids 12/2013 Zur Ausgabe

Research Article

Instantaneous volumic concentration and velocity measurements of a jet in crossflow for the evaluation of the entrainment

Research Article

Evolution of coherent structures in turbulent boundary layers based on moving tomographic PIV

Research Article

Conditional entrainment statistics of inertial particles across shearless turbulent interfaces

Research Article

Evaluation of the pressure field on a rigid body entering a quiescent fluid through particle image velocimetry

Research Article

Streamwise velocity statistics in turbulent boundary layers that spatially develop to high Reynolds number

Research Article

Turbulent boundary-layer structure of flows over freshwater biofilms

Premium Partner

    Marktübersichten

    Die im Laufe eines Jahres in der „adhäsion“ veröffentlichten Marktübersichten helfen Anwendern verschiedenster Branchen, sich einen gezielten Überblick über Lieferantenangebote zu verschaffen. 

    Zur Marktübersicht
    Bildnachweise