An improved algebraic model for by-pass transition for calculation of transitional flow in pipe and parallel-plate channels
Autor
Nering, Konrad
Rup, Kazimierz
Opublikowane w
Thermal Science
Numeracja
Vol. 23, Suppl. 4
Strony
S1123-S1131
Data wydania
2019
Miejsce wydania
Belgrade, Serbia
Wydawca
Vinča Institute of Nuclear Sciences
Język
angielski
ISSN
0354-9836
eISSN
2334-7163
DOI
https://doi.org/10.2298/TSCI19S4123N
Uwagi
Numerical Methods for Thermal Science and Engineering with selected papers presented at 11th International Conference on Computational Heat and Mass Transfer, Kraków, Poland, 28.05 – 01.06, 2018
Modified algebraic intermittency model developed by E. Dick and S. Kubacki was used to describe laminar-turbulent transition. In this work a modification of this model was made for simulating internal flows in pipes and parallel-plate chan-nel. In particular, constants present in this model were modified. These modified constants are the same for different flows in pipes and parallel-plate channels. In this work, a dependence of friction factor on Reynolds number and turbulence in-tensity were determined as well as the localization of laminar breakdown and ful-ly developed flow. Obtained results were compared with theoretical and experi-mental data presented in the literature.
