Multiplicity of states in Taylor-Couette flow of a dense granular gas
Molecular dynamics simulations with a purely repulsive Lennard-Jones potential and a normal damping force is used to simulate the granular flow in the annular region between two differentially-rotating cylinders, called the Taylor-Couette flow. The flow transition from the azimuthally-invariant Circ...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2021-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_03015.pdf |
| _version_ | 1818606845718167552 |
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| author | Gopan Nandu Alam Meheboob |
| author_facet | Gopan Nandu Alam Meheboob |
| author_sort | Gopan Nandu |
| collection | DOAJ |
| description | Molecular dynamics simulations with a purely repulsive Lennard-Jones potential and a normal damping force is used to simulate the granular flow in the annular region between two differentially-rotating cylinders, called the Taylor-Couette flow. The flow transition from the azimuthally-invariant Circular Couette flow (CCF) to the Taylor-vortex flow (TVF) is studied by increasing the rotation rate (ωi) of the inner cylinder, with the outer cylinder being kept stationary. Multiplicity of states, highlighting the hysteretic nature of the “CCF ↔ TVF” transition, is observed over a wide range of rotation rates. The onset of Taylor vortices is quantified in terms of the maximum radial velocity and the net circulation per vortex. |
| first_indexed | 2024-12-16T14:17:20Z |
| format | Article |
| id | doaj.art-14b493abce5443ba86bbdf088559f264 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-16T14:17:20Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-14b493abce5443ba86bbdf088559f2642022-12-21T22:28:34ZengEDP SciencesEPJ Web of Conferences2100-014X2021-01-012490301510.1051/epjconf/202124903015epjconf_pg2021_03015Multiplicity of states in Taylor-Couette flow of a dense granular gasGopan Nandu0Alam Meheboob1Department of Aerospace Engineering, Amrita School of EngineeringEngineering Mechanics Unit, Jawaharlal Nehru Centre for Advanced Scientific ResearchMolecular dynamics simulations with a purely repulsive Lennard-Jones potential and a normal damping force is used to simulate the granular flow in the annular region between two differentially-rotating cylinders, called the Taylor-Couette flow. The flow transition from the azimuthally-invariant Circular Couette flow (CCF) to the Taylor-vortex flow (TVF) is studied by increasing the rotation rate (ωi) of the inner cylinder, with the outer cylinder being kept stationary. Multiplicity of states, highlighting the hysteretic nature of the “CCF ↔ TVF” transition, is observed over a wide range of rotation rates. The onset of Taylor vortices is quantified in terms of the maximum radial velocity and the net circulation per vortex.https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_03015.pdf |
| spellingShingle | Gopan Nandu Alam Meheboob Multiplicity of states in Taylor-Couette flow of a dense granular gas EPJ Web of Conferences |
| title | Multiplicity of states in Taylor-Couette flow of a dense granular gas |
| title_full | Multiplicity of states in Taylor-Couette flow of a dense granular gas |
| title_fullStr | Multiplicity of states in Taylor-Couette flow of a dense granular gas |
| title_full_unstemmed | Multiplicity of states in Taylor-Couette flow of a dense granular gas |
| title_short | Multiplicity of states in Taylor-Couette flow of a dense granular gas |
| title_sort | multiplicity of states in taylor couette flow of a dense granular gas |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_03015.pdf |
| work_keys_str_mv | AT gopannandu multiplicityofstatesintaylorcouetteflowofadensegranulargas AT alammeheboob multiplicityofstatesintaylorcouetteflowofadensegranulargas |