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Numerical Simulation of Flow Past a Rotating Cylinder

Wei Zhang (Institutionen för sjöfart och marin teknik, Marine Design) ; Rickard Bensow (Institutionen för sjöfart och marin teknik, Marine Design)
10th international Conference on hydrodynamics,2012,Oct., Saint Peterburg, Russia (2012)
[Konferensbidrag, refereegranskat]

Flow past a rotating cylinder is investigated through numerical simulation especially via three-dimensional computations for Reynolds number and spin ratio ranging from 0.01 to 800 and from 0 and 15 respectively. It is found that compared with two-dimensional simulation the secondary and third stationary points in the lift curve are no longer exits in the three dimensional simulation. Centrifugal instabilities play a key role in the flow past the rotating circular cylinder, especially with respect to the maximum lift coefficient. This value of up limit of lift coefficient is close to that of the Prandtl`s argument, but the principles are totally different.

Nyckelord: rotating cylinder, CFD, centrifugal instability



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Denna post skapades 2012-10-16. Senast ändrad 2014-09-02.
CPL Pubid: 164792

 

Institutioner (Chalmers)

Institutionen för sjöfart och marin teknik, Marine Design (2012-2014)

Ämnesområden

Transport
Strömningsmekanik

Chalmers infrastruktur

C3SE/SNIC (Chalmers Centre for Computational Science and Engineering)