Turbulent heat and mass exchange in tubes with smooth and rough walls

Millionshchikov, M. D.

doi:10.1007/bf01375752

Cited by 3 publications

(3 citation statements)

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“…where δ is a constant (δ =7.8) [12][13][14] . The equation of motion in a straight circular pipe roughness can be written as follows:…”

Section: Mathematical Modelingmentioning

confidence: 99%

Mathematical Modeling of Hydraulic Resistance in Pipes With Rough Walls

Evgenjevich

2018

Mater. Chem. Phys.

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In recent years, the numbers of patents have been devoted to the development of rough pipes. The technique theoretical settlement determine of factor of hydraulic resistance for round pipes with rough walls is developed on the basis of a principle of a superposition of complete viscosity in turbulent a layer mainly distinguished from the existing theories. The received results of account for the extended range of determining parameters much distinguished from appropriate given for round pipes with turbulizers, specify a level и intensification of heat exchange.

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“…where δ is a constant (δ =7.8) [12][13][14] . The equation of motion in a straight circular pipe roughness can be written as follows:…”

Section: Mathematical Modelingmentioning

confidence: 99%

Mathematical Modeling of Hydraulic Resistance in Pipes With Rough Walls

Evgenjevich

2018

Mater. Chem. Phys.

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“…where 7, 8 δ = -constant. 11,12 The equation of motion in a straight circular pipe roughness can be written as follows:…”

Section: Aeronautics and Aerospace Open Access Journalmentioning

confidence: 99%

“…where 0 0, 97 k = and 0 0, 97 k = -constants. 11,12 Next, we have to express the dynamic speed of the current radius * w through dynamic speed on the tube wall * w :…”

Section: Aeronautics and Aerospace Open Access Journalmentioning

confidence: 99%