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101 0 _aeng
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181 0 _ai
182 0 _ab
200 1 _aPhysico-chemical concept of drag reduction nature in dilute polymer solutions (the Toms effect)
_fV. N. Manzhai [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: p. 42 (23 tit.)]
330 _aThe physicochemical concept of turbulent drag reduction (the Toms effect) integrates physicochemical characteristics of polymer solutions with hydrodynamic and rheological flow parameters into a generalized equation, where the increment in volumetric flow rate QP is a function of the external shear stress ?w, temperature, volume of macromolecular coils with immobilized solvent Vc and a function of their volume fraction ? = C · [?]/(1 + C · [?]). The QP depends on the coil intrinsic elasticity [G] = kT/Vc as well. This model allows one: (1) to describe the Toms effect in terms of useful elastic work spent by macromolecular coils with immobilized solvent to overcome the frictional forces (i.e. the forces of intermolecular interactions), (2) to forecast the initial conditions of the Toms effect (?* ? (RT)/(M · [?])) and (3) to explain the unusual temperature dependence of the polymer solutions flow.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tChemical Engineering and Processing: Process Intensification
463 _tVol. 80
_v[P. 38-42]
_d2014
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
701 1 _aManzhai
_bV. N.
_cspecialist in the field of oil and gas business
_cProfessor of Tomsk Polytechnic University, Doctor of chemical sciences
_f1954-
_gVladimir Nikolaevich
_2stltpush
_3(RuTPU)RU\TPU\pers\32823
701 1 _aNasibullina
_bYu. R.
701 1 _aKuchevskaya
_bA. S.
701 1 _aFilimoshkin
_bA. G.
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bИнститут природных ресурсов (ИПР)
_bКафедра геологии и разработки нефтяных месторождений (ГРНМ)
_h258
_2stltpush
_3(RuTPU)RU\TPU\col\18657
801 2 _aRU
_b63413507
_c20150611
_gRCR
856 4 _uhttp://dx.doi.org/10.1016/j.cep.2014.04.003
942 _cCF