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The magnitude of wall shear stress, plotted along the θ = 90°, 0°, and −90° lines, parallel to the y-axis: – – –, 90°;, 0°; …, −90°. Inset in (a) illustrates the definition of θ. (a) μ* = 0.125, (b) 0.25, (c) 1, (d) 4, (e) 8. R* = 0.4 and Q* = 0.4. For the 90° line, actual data points, represented by small filled circles, are connected with straight line segments. Small arrows above and below the graphs indicate the location of the side-branch walls.
