Fig. 4From: Transient Taylor–Dean flow in a composite annulus with porous walls partially filled with porous materialVelocity profiles for different values of \(\beta\) \(\left( { t = 0.2, P = 10,{\text{Da}} = 0.2, d = 1.5, A^{*} = 1, w = 0.8 } \right)\)Back to article page