Читать книгу The Rheology Handbook - Thomas Mezger - Страница 20

For a closed circular pipeline with the diameter DN 26 (approx. R = 13 mm = 1.3 ⋅ 10-2 m), and the volume flow rate V ̇ = 1.5 to 12 L/min = 2.51 ⋅ 10-5 to 2.00 ⋅ 10-4 m3/s; results: γ ̇ w = 14.6 to 116 s-1 = approx. 15 to 120 s-1. For a pipeline branch with DN 8 (approx. R = 4 mm = 4 ⋅ 10-3 m), and V ̇ = 0.03 to 1 L/min = 5.06 ⋅ 10-7 to 1.67 ⋅ 10-5 m3/s; results: γ ̇ w = 10.1 to 332 s-1 = approx. 10 to 350 s-1