Nucleate boiling in drag‐reducing polymer solutions

1983 ◽  
Vol 27 (1) ◽  
pp. 59-76 ◽  
Author(s):  
D. D Paul ◽  
S. I. Abdel‐Khalik
Keyword(s):  
Polymer Solutions ◽  
Nucleate Boiling ◽  
Drag Reducing Polymer

Diffusion of drag-reducing polymer solutions within a rough-walled turbulent boundary layer

2010 ◽  
Vol 22 (4) ◽  
pp. 045102 ◽  
Author(s):  
Brian R. Elbing ◽  
David R. Dowling ◽  
Marc Perlin ◽  
Steven L. Ceccio
Keyword(s):  
Boundary Layer ◽  
Turbulent Boundary Layer ◽  
Polymer Solutions ◽  
Drag Reducing Polymer

Karman Vortices in the Flow of Drag-reducing Polymer Solutions

Nature ◽  
1970 ◽  
Vol 225 (5231) ◽  
pp. 445-446 ◽  
Author(s):  
V. N. KALASHNIKOV ◽  
A. M. KUDIN
Keyword(s):  
Polymer Solutions ◽  
Drag Reducing Polymer

Gas-liqud slug flow with drag-reducing polymer solutions

AIChE Journal ◽  
1972 ◽  
Vol 18 (4) ◽  
pp. 744-750 ◽  
Author(s):  
R. G. Rosehart ◽  
D. S. Scott ◽  
E. Rhodes
Keyword(s):  
Slug Flow ◽  
Polymer Solutions ◽  
Drag Reducing Polymer

Steady and dynamic shear properties of non-aqueous drag-reducing polymer solutions

1995 ◽  
Vol 34 (6) ◽  
pp. 586-600 ◽  
Author(s):  
Carlos Tiu ◽  
Tony Moussa ◽  
Pierre J. Carreau
Keyword(s):  
Polymer Solutions ◽  
Dynamic Shear ◽  
Shear Properties ◽  
Drag Reducing Polymer

Dynamical behaviour of drag-reducing polymer solutions

1979 ◽  
Vol 5 ◽  
pp. 475-495 ◽  
Author(s):  
O. Scrivener ◽  
C. Berner ◽  
R. Cressely ◽  
R. Hocquart ◽  
R. Sellin ◽  
...  
Keyword(s):  
Polymer Solutions ◽  
Dynamical Behaviour ◽  
Drag Reducing Polymer

Heat transfer to drag-reducing polymer solutions

AIChE Journal ◽  
1969 ◽  
Vol 15 (2) ◽  
pp. 294-297 ◽  
Author(s):  
K. A. Smith ◽  
G. H. Keuroghlian ◽  
P. S. Virk ◽  
E. W. Merrill
Keyword(s):  
Heat Transfer ◽  
Polymer Solutions ◽  
Drag Reducing Polymer

Laminar, transitional and turbulent annular flow of drag-reducing polymer solutions

2010 ◽  
Vol 165 (19-20) ◽  
pp. 1357-1372 ◽  
Author(s):  
A. Japper-Jaafar ◽  
M.P. Escudier ◽  
R.J. Poole
Keyword(s):  
Annular Flow ◽  
Polymer Solutions ◽  
Drag Reducing Polymer

scholarly journals Mechanism of Film Boiling Elimination and IQ Process Design for Hardening Steel in Low Concentration of Water Polymer Solutions

2020 ◽  
pp. 39-56
Author(s):  
Nikolai I. Kobasko
Keyword(s):  
Heat Transfer ◽  
Polymer Solutions ◽  
Heat Treating ◽  
Nucleate Boiling ◽  
Steel Part ◽  
Point Of View ◽  
Film Boiling ◽  
Slow Cooling ◽  
Low Concentration ◽  
Boiling Process

The paper considers a mechanism of the elimination of the film boiling process during intensive quenching (IQ) of steel parts in water polymer solutions of low concentration. The use of the IQ process results in improvement of material mechanical properties and steel part performance characteristics. Evaluation of ways of eliminating of the film boiling process using a modern physics point of view allows significant improvement of the IQ equipment making it less costly and more efficient. All of this cardinally simplifies the implementation of the IQ technology in heat treat practice. The paper shows how creation of a thin insulating surface layer during quenching of steel parts in low concentration of inverse solubility polymers results in eliminating of film boiling processes that makes the quench process intensive. Historically in heat treating industry, an effective heat transfer coefficient was widely used for evaluating of the nucleate boiling process. And quenching during the nucleate boiling mode of heat transfer was considered as slow cooling.

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