流体工学部門講演会講演論文集
Online ISSN : 2424-2896
セッションID: OS01-10
会議情報

凹凸を有する内円筒を用いた回転二重円筒内における粘弾性流体の流れの数値解析
*富田 真生三神 史彦
著者情報
会議録・要旨集 認証あり

詳細
抄録

The viscoelastic fluid flow in a rotating double cylinder was investigated by numerical simulation using a finite-difference method. The volume penalization method was used to represent both a rotating concave-convex inner cylinder and a static outer cylinder. The governing equations consist of the stream function-vorticity formulation of the momentum equation and the constitutive equations of the UCM (Upper Convected Maxwell) fluid. The results show that, in steady states, the circumferential velocity is higher than that predicted by the Couette flow solution, with the effective radius of the inner cylinder increasing accordingly. In the vorticity distribution, ring-like high vorticity areas corresponding to the sudden changes in velocity are observed under higher rotating speeds.

著者関連情報
© 2021 一般社団法人 日本機械学会
前の記事 次の記事
feedback
Top