An impact of thermal boundary conditions on characteristics of a non-Newtonian fluid flowing through a sudden pipe contraction
A physical-mathematical model of a laminar axisymmetric flow of a power-law fluid through a sudden pipe contraction under non-isothermal conditions is presented with allowance for dissipative effects. The rheology of the liquid medium is determined by the Ostwald - de Waele law. The apparent viscosi...
| Опубликовано в: : | Thermophysics and aeromechanics Vol. 29, № 2. P. 217-227 |
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| Главный автор: | |
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| Формат: | Статья в журнале |
| Язык: | English |
| Предметы: | |
| Online-ссылка: | http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001002363 Перейти в каталог НБ ТГУ |
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| 007 | cr | | ||
| 008 | 230524|2022 ru s a eng d | ||
| 024 | 7 | |a 10.1134/S086986432202007X |2 doi | |
| 035 | |a koha001002363 | ||
| 040 | |a RU-ToGU |b rus |c RU-ToGU | ||
| 100 | 1 | |a Ryltseva, K. E. |9 481602 | |
| 245 | 1 | 3 | |a An impact of thermal boundary conditions on characteristics of a non-Newtonian fluid flowing through a sudden pipe contraction |c K. E. Ryltseva, G. R. Shrager |
| 336 | |a Текст | ||
| 337 | |a электронный | ||
| 504 | |a Библиогр.: 37 назв. | ||
| 520 | 3 | |a A physical-mathematical model of a laminar axisymmetric flow of a power-law fluid through a sudden pipe contraction under non-isothermal conditions is presented with allowance for dissipative effects. The rheology of the liquid medium is determined by the Ostwald - de Waele law. The apparent viscosity is specified as a temperature-dependent function. Two options for setting the temperature boundary conditions on a solid wall are considered: the first implies invariable temperature along the pipe wall; and the second assumes a constant temperature value on the wall except for the area in the contraction plane vicinity, where the boundary is exposed to a zero-heat flux. The process is studied numerically using the finite-difference method. The main characteristics of the flow are calculated and visualized. The effect of thermal boundary conditions on the fluid flow structure and local pressure losses is analyzed. | |
| 653 | |a численное моделирование | ||
| 653 | |a степенные жидкости | ||
| 653 | |a течение | ||
| 653 | |a вязкая диссипация | ||
| 653 | |a потери давления | ||
| 653 | |a неньютоновские жидкости | ||
| 653 | |a внезапное сужение трубы | ||
| 655 | 4 | |a статьи в журналах |9 886711 | |
| 700 | 1 | |a Shrager, Gennady R. |9 456692 | |
| 773 | 0 | |t Thermophysics and aeromechanics |d 2022 |g Vol. 29, № 2. P. 217-227 |x 0869-8643 | |
| 852 | 4 | |a RU-ToGU | |
| 856 | 4 | |u http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001002363 | |
| 856 | |y Перейти в каталог НБ ТГУ |u https://koha.lib.tsu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=1002363 | ||
| 908 | |a статья | ||
| 999 | |c 1002363 |d 1002363 | ||
| 039 | |b 100 | ||