English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Effects of density affecting scalar on the onset of chaos in a simplified model of thermal convection: a nonlinear dynamical perspective

Moon, S., Baik, J.-J., Seo, J., & Han, B.-S. (2021). Effects of density affecting scalar on the onset of chaos in a simplified model of thermal convection: a nonlinear dynamical perspective. The European Physical Journal Plus, 136: 92. doi:10.1140/epjp/s13360-020-01047-7.

Item is

Files

show Files
hide Files
:
Approval-Form_EPJPlus_Seo.pdf (Correspondence), 84KB
 
File Permalink:
-
Name:
Approval-Form_EPJPlus_Seo.pdf
Description:
Approval Form
OA-Status:
Visibility:
Private
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-
:
s13360-020-01047-7.pdf (Publisher version), 2MB
 
File Permalink:
-
Name:
s13360-020-01047-7.pdf
Description:
Archivkopie
OA-Status:
Visibility:
Restricted ( Max Planck Society (every institute); )
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
2020
Copyright Info:
© Springer
License:
-

Locators

show

Creators

show
hide
 Creators:
Moon, Sungju, Author
Baik, Jong-Jin, Author
Seo, Jaemyeong1, Author           
Han, Beom-Soon, Author
Affiliations:
1Precipitating Convection, The Atmosphere in the Earth System, MPI for Meteorology, Max Planck Society, ou_3001851              

Content

show
hide
Free keywords: -
 Abstract: To explore how density-affecting scalar influences the onset of chaos in a simplified model of thermal convection, we consider three versions of a physically extended Lorenz system obtained from incorporating additional physical ingredients such as rotation and density-affecting scalar. The three versions of the extended Lorenz system correspond to the cases when the density-affecting scalar has positive, neutral, and negative impacts on buoyancy. In general, compared to the case when the density-affecting scalar has a positive (neutral) impact on buoyancy, the case when the density-affecting scalar has a neutral (negative) impact on buoyancy leads to a higher critical Rayleigh parameter, a sign of delayed onset of chaos. For an appropriate choice of parameters that lead to chaotic solutions in all three cases, it is shown that the chaotic attractors for the three cases can exhibit a variety of different characteristics, such as taking on the shape of the classic Lorenz attractor, sharing the phase space with stable point attractors, and taking an unusual shape that is distinguished from the Lorenz attractor. The different characteristics in chaotic attractors lead to qualitative differences in the behaviour exhibited by the corresponding flow and temperature patterns reconstructed from the numerical solutions. Further analysis of this simplified model offering a nonlinear dynamical perspective on the thermal convection problem is expected to serve as an avenue for gaining new insights into this and related problems. © 2021, The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature.

Details

show
hide
Language(s): eng - English
 Dates: 2020-1120212021-012021
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1140/epjp/s13360-020-01047-7
BibTex Citekey: MoonBaikEtAl2021
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: The European Physical Journal Plus
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Berlin, Heidelberg : Springer
Pages: - Volume / Issue: 136 Sequence Number: 92 Start / End Page: - Identifier: CoNE: https://pure.mpg.de/cone/journals/resource/2190-5444