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International Journal of Fluid Mechanics Research
Главный редактор: Atle Jensen (open in a new tab)
Заместитель главного редактора: Valery Oliynik (open in a new tab)
Редактор-основатель: Victor T. Grinchenko (open in a new tab)

Выходит 6 номеров в год

ISSN Печать: 2152-5102

ISSN Онлайн: 2152-5110

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.1 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.0002 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.33 SJR: 0.256 SNIP: 0.49 CiteScore™:: 2.4 H-Index: 23

Indexed in

Comparison of Standard Turbulent Wall Function with a Non-Equilibrium Wall Model

Том 38, Выпуск 6, 2011, pp. 499-508
DOI: 10.1615/InterJFluidMechRes.v38.i6.30
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Краткое описание

Non-equilibrium (NE) flows, which could occur in most of industrial problems, have some specific physical appearance. Wall bounded flow with severe adverse pressure, separation, reattachment and stagnation has NE exhibition. A wall function in turbulent flow is a remedy to resolving near wall complex phenomena using predetermined functions as boundary conditions. The advantage of this case is permission to using a relatively coarse near wall cells for saving CPU time. Standard wall function (SWF) is a semi-empirical function which is just valid for local equilibrium flows and constant shear stress at near wall cell. As the k-ε model is a simple but key way in simulation of complex and expensive industrial problems, in present study this turbulent model is employed with a non-equilibrium wall function. The simulation results are validated against ready (DNS) on channel and experimental data on backward facing step (BS). Prediction with this non-equilibrium wall function shows that using this wall approach in k-ε model has not made any sensitive change in equilibrium flow compared with SWF. However, produces effective improvement in NE conditions like flow in a backward facing step.

ЦИТИРОВАНО В
  1. Nazif Hamid Reza, Basirat Tabrizi Hassan, Applying a non-equilibrium wall function in k – ε turbulent modelling of hydrodynamic circulating flow, Applied Mathematical Modelling, 38, 2, 2014. Crossref

  2. Yu Kang, Cheng Yong-guang, Zhang Xiao-xi, Hydraulic characteristics of a siphon-shaped overflow tower in a long water conveyance system: CFD simulation and analysis, Journal of Hydrodynamics, 28, 4, 2016. Crossref

  3. Zhang Xin, Zhang Tian-hang, Hou Yun-ge, Zhu Kai, Huang Zhi-yi, Wu Ke, Local loss model of dividing flow in a bifurcate tunnel with a small angle, Journal of Zhejiang University-SCIENCE A, 20, 1, 2019. Crossref

  4. Jemcov Aleksandar, Gonzales Joseph, Maruszewski Joseph, Kelly Ryan, Non-iterative wall model formula for non-equilibrium boundary layer flows, FME Transactions, 50, 2, 2022. Crossref

  5. Shi Bao‐Jun, Wang Hui, Nie Shi‐Ming, Cheng Cheng, Li Tie‐Jun, Experimental and numerical research on the characteristics of heavy gas leakage and diffusion, Process Safety Progress, 41, 3, 2022. Crossref

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