Data-Based Kinematic Viscosity and Rayleigh–Taylor Mixing Attributes in High-Energy Density Plasmas
We explore properties of matter and characteristics of Rayleigh–Taylor mixing by analyzing data gathered in the state-of-the-art fine-resolution experiments in high-energy density plasmas. The eminent quality data represent fluctuations spectra of the X-ray imagery intensity versus spatial frequency...
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2024-09-01
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| author | Snezhana I. Abarzhi Kurt C. Williams |
| author_facet | Snezhana I. Abarzhi Kurt C. Williams |
| author_sort | Snezhana I. Abarzhi |
| collection | DOAJ |
| description | We explore properties of matter and characteristics of Rayleigh–Taylor mixing by analyzing data gathered in the state-of-the-art fine-resolution experiments in high-energy density plasmas. The eminent quality data represent fluctuations spectra of the X-ray imagery intensity versus spatial frequency. We find, by using the rigorous statistical method, that the fluctuations spectra are accurately captured by a compound function, being a product of a power law and an exponential and describing, respectively, self-similar and scale-dependent spectral parts. From the self-similar part, we find that Rayleigh–Taylor mixing has steep spectra and strong correlations. From the scale-dependent part, we derive the first data-based value of the kinematic viscosity in high-energy density plasmas. Our results explain the experiments, agree with the group theory and other experiments, and <sub>carve</sub> the path for better understanding Rayleigh–Taylor mixing in nature and technology. |
| format | Article |
| id | doaj-art-446158f5efbd4c7ba8d883b7117333a3 |
| institution | OA Journals |
| issn | 2218-2004 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | MDPI AG |
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| spelling | doaj-art-446158f5efbd4c7ba8d883b7117333a32025-08-20T02:11:12ZengMDPI AGAtoms2218-20042024-09-0112104710.3390/atoms12100047Data-Based Kinematic Viscosity and Rayleigh–Taylor Mixing Attributes in High-Energy Density PlasmasSnezhana I. Abarzhi0Kurt C. Williams1Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA 91125, USADepartment of Mathematics and Statistics, The University of Western Australia, Perth, WA 6009, AustraliaWe explore properties of matter and characteristics of Rayleigh–Taylor mixing by analyzing data gathered in the state-of-the-art fine-resolution experiments in high-energy density plasmas. The eminent quality data represent fluctuations spectra of the X-ray imagery intensity versus spatial frequency. We find, by using the rigorous statistical method, that the fluctuations spectra are accurately captured by a compound function, being a product of a power law and an exponential and describing, respectively, self-similar and scale-dependent spectral parts. From the self-similar part, we find that Rayleigh–Taylor mixing has steep spectra and strong correlations. From the scale-dependent part, we derive the first data-based value of the kinematic viscosity in high-energy density plasmas. Our results explain the experiments, agree with the group theory and other experiments, and <sub>carve</sub> the path for better understanding Rayleigh–Taylor mixing in nature and technology.https://www.mdpi.com/2218-2004/12/10/47transport coefficientshigh-energy density plasmasinterfacial mixingdata analysis |
| spellingShingle | Snezhana I. Abarzhi Kurt C. Williams Data-Based Kinematic Viscosity and Rayleigh–Taylor Mixing Attributes in High-Energy Density Plasmas Atoms transport coefficients high-energy density plasmas interfacial mixing data analysis |
| title | Data-Based Kinematic Viscosity and Rayleigh–Taylor Mixing Attributes in High-Energy Density Plasmas |
| title_full | Data-Based Kinematic Viscosity and Rayleigh–Taylor Mixing Attributes in High-Energy Density Plasmas |
| title_fullStr | Data-Based Kinematic Viscosity and Rayleigh–Taylor Mixing Attributes in High-Energy Density Plasmas |
| title_full_unstemmed | Data-Based Kinematic Viscosity and Rayleigh–Taylor Mixing Attributes in High-Energy Density Plasmas |
| title_short | Data-Based Kinematic Viscosity and Rayleigh–Taylor Mixing Attributes in High-Energy Density Plasmas |
| title_sort | data based kinematic viscosity and rayleigh taylor mixing attributes in high energy density plasmas |
| topic | transport coefficients high-energy density plasmas interfacial mixing data analysis |
| url | https://www.mdpi.com/2218-2004/12/10/47 |
| work_keys_str_mv | AT snezhanaiabarzhi databasedkinematicviscosityandrayleightaylormixingattributesinhighenergydensityplasmas AT kurtcwilliams databasedkinematicviscosityandrayleightaylormixingattributesinhighenergydensityplasmas |