Predicting Fully-developed Channel Flow with Zero-equation Model
A new zero-equation model (ZEM) is devised with an eddy-viscosity formulation using a stress length variable which the structural ensemble dynamics (SED) theory predicts. The ZEM is distinguished by obvious physical parameters, quantifying the underlying flow domain with a universal multilayer st...
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| Główni autorzy: | , , , |
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| Format: | Artykuł |
| Język: | angielski |
| Wydane: |
R&D Wing, MIST
2022
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| Hasła przedmiotowe: | |
| Dostęp online: | http://dspace.mist.ac.bd:8080/xmlui/handle/123456789/686 |
| Etykiety: |
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| _version_ | 1868227053123272704 |
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| author | Rahman, M. M. Hasan, K. Liu, Wenchang Li, Xinming |
| author_browse | Hasan, K. Li, Xinming Liu, Wenchang Rahman, M. M. |
| author_facet | Rahman, M. M. Hasan, K. Liu, Wenchang Li, Xinming |
| author_sort | Rahman, M. M. |
| collection | DSpace |
| description | A new zero-equation model (ZEM) is devised with an eddy-viscosity
formulation using a stress length variable which the structural ensemble
dynamics (SED) theory predicts. The ZEM is distinguished by obvious physical
parameters, quantifying the underlying flow domain with a universal multilayer structure. The SED theory is also utilized to formulate an anisotropic
Bradshaw stress-intensity factor, parameterized with an eddy-to-laminar
viscosity ratio. Bradshaw’s structure-function is employed to evaluate the
kinetic energy of turbulence k and turbulent dissipation rate 𝜺𝜺. The proposed
ZEM is intrinsically plausible, having a significant impact on the prediction of
wall-bounded turbulence. |
| format | Article |
| id | oai:localhost:123456789-686 |
| institution | My University |
| language | English |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | R&D Wing, MIST |
| publisherStr | R&D Wing, MIST |
| record_format | dspace |
| spelling | oai:localhost:123456789-6862022-01-19T04:32:54Z Predicting Fully-developed Channel Flow with Zero-equation Model Rahman, M. M. Hasan, K. Liu, Wenchang Li, Xinming y-phrases, Algebraic model, SED theory, Stress length, Stress-intensity parameter, Wall turbulence A new zero-equation model (ZEM) is devised with an eddy-viscosity formulation using a stress length variable which the structural ensemble dynamics (SED) theory predicts. The ZEM is distinguished by obvious physical parameters, quantifying the underlying flow domain with a universal multilayer structure. The SED theory is also utilized to formulate an anisotropic Bradshaw stress-intensity factor, parameterized with an eddy-to-laminar viscosity ratio. Bradshaw’s structure-function is employed to evaluate the kinetic energy of turbulence k and turbulent dissipation rate 𝜺𝜺. The proposed ZEM is intrinsically plausible, having a significant impact on the prediction of wall-bounded turbulence. 2022-01-19T04:32:48Z 2022-01-19T04:32:48Z 2021-12 Article 2224-2007 http://dspace.mist.ac.bd:8080/xmlui/handle/123456789/686 en application/pdf R&D Wing, MIST |
| spellingShingle | y-phrases, Algebraic model, SED theory, Stress length, Stress-intensity parameter, Wall turbulence Rahman, M. M. Hasan, K. Liu, Wenchang Li, Xinming Predicting Fully-developed Channel Flow with Zero-equation Model |
| title | Predicting Fully-developed Channel Flow with Zero-equation Model |
| title_full | Predicting Fully-developed Channel Flow with Zero-equation Model |
| title_fullStr | Predicting Fully-developed Channel Flow with Zero-equation Model |
| title_full_unstemmed | Predicting Fully-developed Channel Flow with Zero-equation Model |
| title_short | Predicting Fully-developed Channel Flow with Zero-equation Model |
| title_sort | predicting fully developed channel flow with zero equation model |
| topic | y-phrases, Algebraic model, SED theory, Stress length, Stress-intensity parameter, Wall turbulence |
| url | http://dspace.mist.ac.bd:8080/xmlui/handle/123456789/686 |
| work_keys_str_mv | AT rahmanmm predictingfullydevelopedchannelflowwithzeroequationmodel AT hasank predictingfullydevelopedchannelflowwithzeroequationmodel AT liuwenchang predictingfullydevelopedchannelflowwithzeroequationmodel AT lixinming predictingfullydevelopedchannelflowwithzeroequationmodel |