Determination of temperature and concentration of a vapor–gas mixture in a wake of water droplets moving through combustion products
| Parent link: | Journal of Engineering Thermophysics.— , 1991- Vol. 25, iss. 3.— 2016.— [P. 337–351] |
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| Kurumsal yazarlar: | , |
| Diğer Yazarlar: | , |
| Özet: | Title screen Characteristic temperatures and concentrations of a vapor–gas mixture in a wake of water droplets moving through combustion products (initial temperature 1170 K) were determined using the Ansys Fluent mathematical modeling package. We investigated two variants of motion: motion of two droplets (with sizes from 1 mm to 3 mm), consecutive and parallel, and motion of five staggered droplets. The influence of the relative position of droplets and also of distances between them (varied from 0.01 mm to 5 mm) on temperatures and concentrations of water vapor was established. The distances determine the relation between the evaporation areas and the total volume occupied by a droplet aggregate in the gas medium. The results of modeling for conditions that take into account vaporization on the droplet surface at average constant values of evaporation rate and also with consideration of the change in the latter, depending on the droplet temperature field, are compared. We determined conditions under which the modeling results are comparable for the assumption of a constant vaporization rate and with regard to the dependence of the latter on temperature. The earlier hypothesis on formation of a buffer vapor layer (“thermal protection”) around a droplet, which decreases the thermal flow from the external gas medium, was validated. |
| Dil: | İngilizce |
| Baskı/Yayın Bilgisi: |
2016
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| Konular: | |
| Online Erişim: | http://dx.doi.org/10.1134/S1810232816030048 |
| Materyal Türü: | Elektronik Kitap Bölümü |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=650231 |
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| 200 | 1 | |a Determination of temperature and concentration of a vapor–gas mixture in a wake of water droplets moving through combustion products |f D. V. Antonov, G. V. Kuznetsov, P. A. Strizhak | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: p. 351 (30 tit.)] | ||
| 330 | |a Characteristic temperatures and concentrations of a vapor–gas mixture in a wake of water droplets moving through combustion products (initial temperature 1170 K) were determined using the Ansys Fluent mathematical modeling package. We investigated two variants of motion: motion of two droplets (with sizes from 1 mm to 3 mm), consecutive and parallel, and motion of five staggered droplets. The influence of the relative position of droplets and also of distances between them (varied from 0.01 mm to 5 mm) on temperatures and concentrations of water vapor was established. The distances determine the relation between the evaporation areas and the total volume occupied by a droplet aggregate in the gas medium. The results of modeling for conditions that take into account vaporization on the droplet surface at average constant values of evaporation rate and also with consideration of the change in the latter, depending on the droplet temperature field, are compared. We determined conditions under which the modeling results are comparable for the assumption of a constant vaporization rate and with regard to the dependence of the latter on temperature. The earlier hypothesis on formation of a buffer vapor layer (“thermal protection”) around a droplet, which decreases the thermal flow from the external gas medium, was validated. | ||
| 461 | |t Journal of Engineering Thermophysics |d 1991- | ||
| 463 | |t Vol. 25, iss. 3 |v [P. 337–351] |d 2016 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 700 | 1 | |a Antonov |b D. V. |c specialist in the field of heat and power engineering |c Associate Professor, Research Engineer at Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences |f 1996- |g Dmitry Vladimirovich |3 (RuTPU)RU\TPU\pers\46666 |9 22322 | |
| 701 | 1 | |a Kuznetsov |b G. V. |c Specialist in the field of heat power energy |c Professor of Tomsk Polytechnic University, Doctor of Physical and Mathematical Sciences |f 1949- |g Geny Vladimirovich |3 (RuTPU)RU\TPU\pers\31891 |9 15963 | |
| 701 | 1 | |a Strizhak |b P. A. |c Specialist in the field of heat power energy |c Doctor of Physical and Mathematical Sciences (DSc), Professor of Tomsk Polytechnic University (TPU) |f 1985- |g Pavel Alexandrovich |3 (RuTPU)RU\TPU\pers\30871 |9 15117 | |
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