The evolution of homogeneous isotropic turbulence in background rotation
© Published under licence by IOP Publishing Ltd. Direct numerical simulation is employed to investigate the effect of background rotation on the evolution of homogeneous isotropic turbulence. The frame of reference rotates only in one direction with a rotation numbers varied from 0 to 4, representin...
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th-cmuir.6653943832-586932018-09-05T04:31:42Z The evolution of homogeneous isotropic turbulence in background rotation Jiratrakul Tunkeaw Watchapon Rojanaratanangkule Engineering Materials Science © Published under licence by IOP Publishing Ltd. Direct numerical simulation is employed to investigate the effect of background rotation on the evolution of homogeneous isotropic turbulence. The frame of reference rotates only in one direction with a rotation numbers varied from 0 to 4, representing both slow and fast rotations. In a stationary frame of reference, the turbulence structures are isotropic and its energy spectrum exhibits a famous k-5/3in the inertial subrange. The background rotation alters the isotropic behaviour of the turbulence structures, leading to the formation of columnar vortices. The slope of the energy spectrum strongly depends on the rotation number and ranges between -5/3 and -3.78. 2018-09-05T04:28:42Z 2018-09-05T04:28:42Z 2018-02-07 Conference Proceeding 1757899X 17578981 2-s2.0-85046289005 10.1088/1757-899X/297/1/012032 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85046289005&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/58693 |
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Engineering Materials Science Jiratrakul Tunkeaw Watchapon Rojanaratanangkule The evolution of homogeneous isotropic turbulence in background rotation |
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© Published under licence by IOP Publishing Ltd. Direct numerical simulation is employed to investigate the effect of background rotation on the evolution of homogeneous isotropic turbulence. The frame of reference rotates only in one direction with a rotation numbers varied from 0 to 4, representing both slow and fast rotations. In a stationary frame of reference, the turbulence structures are isotropic and its energy spectrum exhibits a famous k-5/3in the inertial subrange. The background rotation alters the isotropic behaviour of the turbulence structures, leading to the formation of columnar vortices. The slope of the energy spectrum strongly depends on the rotation number and ranges between -5/3 and -3.78. |
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Conference Proceeding |
author |
Jiratrakul Tunkeaw Watchapon Rojanaratanangkule |
author_facet |
Jiratrakul Tunkeaw Watchapon Rojanaratanangkule |
author_sort |
Jiratrakul Tunkeaw |
title |
The evolution of homogeneous isotropic turbulence in background rotation |
title_short |
The evolution of homogeneous isotropic turbulence in background rotation |
title_full |
The evolution of homogeneous isotropic turbulence in background rotation |
title_fullStr |
The evolution of homogeneous isotropic turbulence in background rotation |
title_full_unstemmed |
The evolution of homogeneous isotropic turbulence in background rotation |
title_sort |
evolution of homogeneous isotropic turbulence in background rotation |
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2018 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85046289005&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/58693 |
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