Large-eddy simulation of flow about a rotating cylinder at large Reynolds number
Type
Conference PaperKAUST Department
Fluid and Plasma Simulation Group (FPS)Mechanical Engineering Program
Physical Science and Engineering (PSE) Division
Date
2018Permanent link to this record
http://hdl.handle.net/10754/681593
Metadata
Show full item recordAbstract
Wall-resolved large-eddy simulations (LES) of flow over a rotating cylinder are described. The two important flow parameters are the Reynolds number ReD = U∞ D/ν and the rotation speed α = Ω D/(2 U∞). We discuss LES data sets obtained by varying α at various ReD with our main results at ReD = 6 × 104. Our emphasis centers on the lift-crisis phenomenon where, at fixed and large ReD, the lift coefficient CL decreases suddenly as α passes though a narrow, critical band. We show the variation of time/span-wise averaged pressure and skin-friction coefficients around the cylinder surface as α is increased. The LES is shown to capture the lift crisis at ReD = 6 × 104. Calculations of CL are compared with experimental measurements.Citation
Pullin, D. I., Cheng, W., & Samtaney, R. (2018). Large-eddy simulation of flow about a rotating cylinder at large Reynolds number. Proceeding of THMT-18. Turbulence Heat and Mass Transfer 9 Proceedings of the Ninth International Symposium On Turbulence Heat and Mass Transfer. https://doi.org/10.1615/thmt-18.1110Publisher
BegellhouseConference/Event name
9th International Symposium on Turbulence Heat and Mass Transfer, THMT 2018ISBN
9781567004687Additional Links
http://www.dl.begellhouse.com/references/1bb331655c289a0a,581052950cd6a1e7,01bb085509cb36bb.htmlae974a485f413a2113503eed53cd6c53
10.1615/THMT-18.1110