Numerical Simulation of Flow Past a Rotating Cylinder
Paper i proceeding, 2012

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.

CFD

rotating cylinder

centrifugal instability

Författare

Zhang Wei

Chalmers, Sjöfart och marin teknik, Marine Design

Rickard Bensow

Chalmers, Sjöfart och marin teknik, Marine Design

10th international Conference on hydrodynamics,2012,Oct., Saint Peterburg, Russia

Styrkeområden

Transport

Infrastruktur

C3SE (Chalmers Centre for Computational Science and Engineering)

Ämneskategorier

Strömningsmekanik och akustik