The influence of boundary condition functions on the quality of the solution and its sensitivity to coefficients of k-ε turbulence models
Author(s) -
Ewa BłazikBorowa
Publication year - 2011
Publication title -
budownictwo i architektura
Language(s) - English
Resource type - Journals
eISSN - 1899-0665
pISSN - 2544-3275
DOI - 10.35784/bud-arch.2255
Subject(s) - turbulence , sensitivity (control systems) , turbulence kinetic energy , k epsilon turbulence model , boundary (topology) , k omega turbulence model , kinetic energy , inflow , flow (mathematics) , boundary value problem , mechanics , quality (philosophy) , mathematics , physics , statistical physics , mathematical analysis , classical mechanics , engineering , quantum mechanics , electronic engineering
The paper is devoted to the problem of boundary conditions influence on the quality of the solution obtained with use of k-e turbulence models. There are calculation results for different boundary conditions and two methods: standard k-e and RNG k-e in the paper. The flow parameters obtained from the calculation are compared with our own measurement results. Moreover, the influence of input data on the inflow edge on sensitivity coefficients is shown and analysed in the paper. The research is performed for components of velocity and turbulence kinetic energy.
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