Intermittency of gravity wave turbulence on the surface of an infinitely deep fluid: Numerical experiment.
Saved in:
| Title: | Intermittency of gravity wave turbulence on the surface of an infinitely deep fluid: Numerical experiment. |
|---|---|
| Authors: | Skvortsov, Alexei T.1 (AUTHOR) alexei.skvortsov@defence.gov.au, Kirezci, Cagil2 (AUTHOR), Sgarioto, Daniel1 (AUTHOR), Babanin, Alexander V.2 (AUTHOR) |
| Source: | Physics Letters A. Oct2022, Vol. 449, pN.PAG-N.PAG. 1p. |
| Subjects: | Gravity waves, Turbulence, Numerical solutions to equations, Equations of motion, Lyapunov exponents, Lamb waves, Fluid-structure interaction, Magnetohydrodynamic waves |
| Abstract: | • Scaling exponent of velocity structure-function is evaluated up 15th order. • Different models of intermittency for wave turbulence have been validated. • She-Leveque model of intermittency provides a better fit for numerical data. The intermittency of gravity wave turbulence on the surface of an infinitely deep fluid has been studied numerically. We estimated the scaling exponent of surface elevation structure-functions directly from the equations of motion, e.g., by numerical solution of the underlying equations of motion, without any additional closure assumptions (e.g., phase randomisation) and reduction to the kinetic equations as in the conventional framework of wave turbulence theory. With our high-resolution numerical methods for accurately modelling the nonlinear water surface, we were able to evaluate the scaling exponents of the structure-function up to relatively high orders (p = 15), which has not been previously reported. We investigated the effect of wave steepness and forcing on intermittency and compared our results with other analytical and numerical studies, including results on the intermittency of wave turbulence of a different nature (turbulence of bending waves on a plate and magnetohydrodynamic turbulence). Our results support the conjecture of universality for intermittency phenomena in wave turbulence. [ABSTRACT FROM AUTHOR] |
| Copyright of Physics Letters A is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 158957848 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Intermittency of gravity wave turbulence on the surface of an infinitely deep fluid: Numerical experiment. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Skvortsov%2C+Alexei+T%2E%22">Skvortsov, Alexei T.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> alexei.skvortsov@defence.gov.au</i><br /><searchLink fieldCode="AR" term="%22Kirezci%2C+Cagil%22">Kirezci, Cagil</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sgarioto%2C+Daniel%22">Sgarioto, Daniel</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Babanin%2C+Alexander+V%2E%22">Babanin, Alexander V.</searchLink><relatesTo>2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Physics+Letters+A%22">Physics Letters A</searchLink>. Oct2022, Vol. 449, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Gravity+waves%22">Gravity waves</searchLink><br /><searchLink fieldCode="DE" term="%22Turbulence%22">Turbulence</searchLink><br /><searchLink fieldCode="DE" term="%22Numerical+solutions+to+equations%22">Numerical solutions to equations</searchLink><br /><searchLink fieldCode="DE" term="%22Equations+of+motion%22">Equations of motion</searchLink><br /><searchLink fieldCode="DE" term="%22Lyapunov+exponents%22">Lyapunov exponents</searchLink><br /><searchLink fieldCode="DE" term="%22Lamb+waves%22">Lamb waves</searchLink><br /><searchLink fieldCode="DE" term="%22Fluid-structure+interaction%22">Fluid-structure interaction</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetohydrodynamic+waves%22">Magnetohydrodynamic waves</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: • Scaling exponent of velocity structure-function is evaluated up 15th order. • Different models of intermittency for wave turbulence have been validated. • She-Leveque model of intermittency provides a better fit for numerical data. The intermittency of gravity wave turbulence on the surface of an infinitely deep fluid has been studied numerically. We estimated the scaling exponent of surface elevation structure-functions directly from the equations of motion, e.g., by numerical solution of the underlying equations of motion, without any additional closure assumptions (e.g., phase randomisation) and reduction to the kinetic equations as in the conventional framework of wave turbulence theory. With our high-resolution numerical methods for accurately modelling the nonlinear water surface, we were able to evaluate the scaling exponents of the structure-function up to relatively high orders (p = 15), which has not been previously reported. We investigated the effect of wave steepness and forcing on intermittency and compared our results with other analytical and numerical studies, including results on the intermittency of wave turbulence of a different nature (turbulence of bending waves on a plate and magnetohydrodynamic turbulence). Our results support the conjecture of universality for intermittency phenomena in wave turbulence. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Physics Letters A is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=158957848 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.physleta.2022.128337 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Gravity waves Type: general – SubjectFull: Turbulence Type: general – SubjectFull: Numerical solutions to equations Type: general – SubjectFull: Equations of motion Type: general – SubjectFull: Lyapunov exponents Type: general – SubjectFull: Lamb waves Type: general – SubjectFull: Fluid-structure interaction Type: general – SubjectFull: Magnetohydrodynamic waves Type: general Titles: – TitleFull: Intermittency of gravity wave turbulence on the surface of an infinitely deep fluid: Numerical experiment. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Skvortsov, Alexei T. – PersonEntity: Name: NameFull: Kirezci, Cagil – PersonEntity: Name: NameFull: Sgarioto, Daniel – PersonEntity: Name: NameFull: Babanin, Alexander V. IsPartOfRelationships: – BibEntity: Dates: – D: 14 M: 10 Text: Oct2022 Type: published Y: 2022 Identifiers: – Type: issn-print Value: 03759601 Numbering: – Type: volume Value: 449 Titles: – TitleFull: Physics Letters A Type: main |
| ResultId | 1 |
