Выходит 6 номеров в год
ISSN Печать: 1940-2503
ISSN Онлайн: 1940-2554
IF:
1.5
5-Year IF:
1
Immediacy Index:
0.3
Eigenfactor:
0.00017
JCI:
0.28
SJR:
0.279
SNIP:
0.544
CiteScore™::
2.5
H-Index:
22
Indexed in
ADAPTIVE FEM MODEL FOR UNSTEADY TURBULENT CONVECTIVE FLOW OVER A BACKWARD-FACING STEP
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Краткое описание
An adaptive finite element algorithm for solving turbulent convective flow over a backward-facing step using a two-equation low−Reynolds number model has been developed. The mesh is dynamically controlled using an L2 norm error estimator. Petrov-Galerkin weighting is used for the advection terms. Complex features within the flow including boundary layer development and reattachments points are resolved using high-density localized mesh refinement. Simulation results are obtained for a Reynolds number equal to 28,000, with the channel's expansion ratio equal to 1.25 and the Prandtl number set to 0.71. A constant uniform heat flux of 270 W/m2 is specified along the wall downstream from the step; all the other walls are set to adiabatic conditions. Simulation results for mean velocity profiles, mean temperature profiles, turbulence kinetic energy, and friction coefficient distributions are obtained. Results are compared with both numerical and experimental data in the literature. Good agreement is observed.
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Saha Suvash C., Gu Y. T., Khan M. M. K., Heat Transfer Enhancement in a Baffled Attic-Shaped Space, in Application of Thermo-fluid Processes in Energy Systems, 2018. Crossref
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Philipbar Brad M., Waters Jiajia, Carrington David B., A finite element Menter Shear Stress turbulence transport model, Numerical Heat Transfer, Part A: Applications, 77, 12, 2020. Crossref
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Lv Jun, Huang Qinghua , Yu Xinping , Qi Yongjie , HYDROTHERMAL PERFORMANCE IMPROVEMENT OF MICROSCALE BACKWARD-FACING STEP CHANNEL BY EMPLOYING VORTEX GENERATORS AND NANOFLUIDS , Computational Thermal Sciences: An International Journal, 15, 1, 2023. Crossref