Turbulent flows in straight and bent pipes with smooth and rough walls are considered at different Reynolds numbers. Besides, the flows in straight pipes with spherical valve and grill inside are modeled. The computed pressure drops and hydraulic resistances are compared with empirical correlations.

1. Landau L.D., Livshits E.M, Theoretical Physics, Text-book in 10 volumes, Vol. VI: Hydrodynamics, 3-rd edition, Publishing house “Nauka”, Moscow, 1986, in Russian.
2. Idel’chik I.E., Handbook on hydraulic resistances, Publishing house “Mechanical engineering”, Moscow, 1975, in Russian.

Turbulent flow in a straight smooth pipe:

• Description of test case, pdf (330k)
• Geometry, zip (1k)
• FlowVision variants, zip (28k)

Turbulent flow in a straight pipe with rough walls (uniform sand roughness is assumed):

• Description of test case, pdf (495k)
• Geometry, zip (1k)
• FlowVision variants, zip (27k)

Turbulent flow in a smoothly bent smooth pipe:

• Description of test case, pdf (493k)
• Geometry, zip (10k)
• FlowVision variants, zip (3Mb)

Turbulent flow in a straight smooth pipe with spherical valve inside:

• Description of test case, pdf (293k)
• Geometry, zip (247k)
• FlowVision variants, zip (504k)

Turbulent flow in a straight smooth pipe with grill inside:

• Description of test case, pdf (337k)
• Geometry, zip (46k)
• FlowVision variants, zip (406k)