Affiliation:
1. Huazhong University of Science and Technology
Abstract
The numerical simulation of the developing turbulent flow through a three-dimensional curved pipe with strong curvature is presented. This numerical simulation is to investigate the flow structure of pipe-flow through a 90° bent pipe with the aid of RNG k-ε turbulence model, which had been well validated for high screwed curvature flow. Dean Motion downstream of the bend are found and presented. And the numerical result demonstrates that Dean motions co-exist with large scale swirling motions inside the bend pipe. Snapshot of velocity and pressure reveals that the structures found upstream of the bend persist after the bend and survive the strong secondary motions induced by the pipe curvature.
Publisher
Trans Tech Publications, Ltd.
Reference18 articles.
1. DEAN, W. R, Note On the motion of fluid in a curved pipe, Philos Mag. J. Sci, 4(2) (1927) 208-238.
2. AZZOLA J. Developing turbulent flow in a U-bend of circular cross-section EJ3, Measurement and Computation Trans ASME, Journal of Fluids Engineering, Vol. 108 (1986) 214-221.
3. SUDOK, SUMIDA M, HIBARA H, Experimental investigation on turbulent flow in a circular-sectioned 90-degree bend, Experiments in Fluids, 25 (1998) 42-49.
4. Berger, S.A., Talbot, L., Yao, Flow in curved pipes, Ann. Rev. Fluid Mech, (1983) 461-512.
5. Eustice, J. Experiments of streamline motion in curved pipes, Proc. Roy. Soc. Lond. Ser. A, 85: 1(1911) 19-31.
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2 articles.
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