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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2408.05480 |
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| _version_ | 1866909369992478720 |
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| author | Sharma, Sachin Wani, Rauoof Srivastav, Prabhakar Sharma, Meenakshee Bose, Sayak Saxena, Yogesh Tiwari, Sanat |
| author_facet | Sharma, Sachin Wani, Rauoof Srivastav, Prabhakar Sharma, Meenakshee Bose, Sayak Saxena, Yogesh Tiwari, Sanat |
| contents | We report the experimental observation of fully developed Kolmogorov turbulence originating from self-excited vortex flows in a three-dimensional (3D) dust cloud. The characteristic -5/3 scaling of three-dimensional Kolmogorov turbulence is universally observed in both the spatial and temporal power spectra. Additionally, the 2/3 scaling in the second-order structure function further confirms the presence of Kolmogorov turbulence. We also identified a slight deviation in the tails of the probability distribution functions for velocity gradients. The dust cloud formed in the diffused region away from the electrode and above the glass device surface in the glow discharge experiments. The dust rotation was observed in multiple experimental campaigns under different discharge conditions at different spatial locations and background plasma environments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_05480 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Observation of Kolmogorov turbulence due to multiscale vortices in dusty plasma experiments Sharma, Sachin Wani, Rauoof Srivastav, Prabhakar Sharma, Meenakshee Bose, Sayak Saxena, Yogesh Tiwari, Sanat Plasma Physics We report the experimental observation of fully developed Kolmogorov turbulence originating from self-excited vortex flows in a three-dimensional (3D) dust cloud. The characteristic -5/3 scaling of three-dimensional Kolmogorov turbulence is universally observed in both the spatial and temporal power spectra. Additionally, the 2/3 scaling in the second-order structure function further confirms the presence of Kolmogorov turbulence. We also identified a slight deviation in the tails of the probability distribution functions for velocity gradients. The dust cloud formed in the diffused region away from the electrode and above the glass device surface in the glow discharge experiments. The dust rotation was observed in multiple experimental campaigns under different discharge conditions at different spatial locations and background plasma environments. |
| title | Observation of Kolmogorov turbulence due to multiscale vortices in dusty plasma experiments |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2408.05480 |