NDLI: Numerical Simulation of Separated and Reattached Flows around a Backward-Facing Step

Content Provider	IEEE Xplore Digital Library
Author	Yinsong Li Chaorong Zheng
Copyright Year	2015
Description	Author affiliation: Key Lab. of Struct. Dynamic Behavior & Control of the Minist. of Educ., Harbin Inst. of Technol., Harbin, China (Yinsong Li; Chaorong Zheng)
Abstract	Separated and reattached flows around a backward-facing step (BFS) controlled by continuous suction was numerically investigated using the turbulence model of large eddy simulation (LES) based on the dynamic kinetic energy sub grid-scale model. The effect of suction control on the flow fields was described by the suction flow coefficient, and the results indicate that suction is not only very effective in shortening the reattachment length, but also very influential in reducing the turbulence fluctuations of the reattached flows. With increasing increments of the absolute suction flow coefficient, the effect of suction control is more significant. Furthermore, comparisons of the time-averaged statistics between the numerical simulation and corresponding experiment are conducted, and it shows that the LES can acquire exact results. Therefore, feasibility of the numerical methods to simulate suction-controlled models is validated.
Sponsorship	Hunan Inst. Ind.
Starting Page	708
Ending Page	711
File Size	797957
Page Count	4
File Format	PDF
e-ISBN	9781467371438
DOI	10.1109/ICMTMA.2015.176
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-06-13
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fluids Fluctuations large eddy simulation Computational modeling Backward-facing step suction Numerical simulation Boundary conditions Aerodynamics Numerical models flow control reattachment length
Content Type	Text
Resource Type	Article

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