半球殻かんげき流れにおける粘弾性流体の数値解析(<小特集>抵抗減少効果とその応用)

抄録

We have investigated flow behavior of viscoelastic fluid in half-spherical gap between two coaxially rotating spheres. Numerical analysis was carried out, using constitutive equation of the Giesekus model, which characterizes a viscoelastic fluid with both the shear-thinning and the elasticity. Numerical solutions were obtained for flow field and its associated torque and thrust characteristics in the transient process by using the finite difference method.