Numerical simulation of ignition of a typical gel fuel particle, based on organic polymer thickener, in a high-temperature air medium
| Parent link: | Acta Astronautica Vol. 178.— 2021.— [P. 272-284] |
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| Körperschaft: | |
| Weitere Verfasser: | , , , |
| Zusammenfassung: | Title screen Using the results of previous experimental research by means of high-speed video recording, a mathematical model of ignition was developed for a typical gel fuel particle, based on an organic polymer thickener, in a high-temperature motionless air medium. The structure of such fuel is a rather dense polymer matrix with fine droplets of combustible liquid in the cells. The advantages of gel fuels over liquid rocket propellants dictate their prospects as an energy resource in aerospace industry. The mathematical model of the process under study was developed using the mathematical tools of continuum mechanics and chemical kinetics. It is represented by a system of time-dependent nonlinear partial differential equations with the corresponding initial and boundary conditions. The developed mathematical model describes the process in terms of a limiting mode: the rate of heat supply from the source to the fuel and combustible gas-vapor mixture is limited. This implies that the typical heating time is much longer than the time of chemical reactions. In this case, the factors limiting the process intensity are heat supply and diffusion. Exothermic reactions can be assumed to develop in equilibrium with due consideration of corresponding conditions in the gas medium around the fuel particle. Satisfactory verification results for the mathematical model and numerical algorithm made is possible to conclude that this approach can be used to reliably predict the ignition characteristics of such kind of gel fuels. Gel particles 0.25–2.00 mm in size were considered. They were heated in an air medium at 750–1473 K. The ignition delay times under such conditions ranged from 0.3 to 10.0 s. Режим доступа: по договору с организацией-держателем ресурса |
| Sprache: | Englisch |
| Veröffentlicht: |
2021
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| Schlagworte: | |
| Online-Zugang: | https://doi.org/10.1016/j.actaastro.2020.09.004 |
| Format: | Elektronisch Buchkapitel |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663170 |
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| 200 | 1 | |a Numerical simulation of ignition of a typical gel fuel particle, based on organic polymer thickener, in a high-temperature air medium |f D. O. Glushkov, A. G. Kosintsev, G. V. Kuznetsov, V. S. Vysokomorniy | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 52 tit.] | ||
| 330 | |a Using the results of previous experimental research by means of high-speed video recording, a mathematical model of ignition was developed for a typical gel fuel particle, based on an organic polymer thickener, in a high-temperature motionless air medium. The structure of such fuel is a rather dense polymer matrix with fine droplets of combustible liquid in the cells. The advantages of gel fuels over liquid rocket propellants dictate their prospects as an energy resource in aerospace industry. The mathematical model of the process under study was developed using the mathematical tools of continuum mechanics and chemical kinetics. It is represented by a system of time-dependent nonlinear partial differential equations with the corresponding initial and boundary conditions. The developed mathematical model describes the process in terms of a limiting mode: the rate of heat supply from the source to the fuel and combustible gas-vapor mixture is limited. This implies that the typical heating time is much longer than the time of chemical reactions. In this case, the factors limiting the process intensity are heat supply and diffusion. Exothermic reactions can be assumed to develop in equilibrium with due consideration of corresponding conditions in the gas medium around the fuel particle. Satisfactory verification results for the mathematical model and numerical algorithm made is possible to conclude that this approach can be used to reliably predict the ignition characteristics of such kind of gel fuels. Gel particles 0.25–2.00 mm in size were considered. They were heated in an air medium at 750–1473 K. The ignition delay times under such conditions ranged from 0.3 to 10.0 s. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Acta Astronautica | ||
| 463 | |t Vol. 178 |v [P. 272-284] |d 2021 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a gel fuel | |
| 610 | 1 | |a organic polymer thickener | |
| 610 | 1 | |a particle | |
| 610 | 1 | |a heated air | |
| 610 | 1 | |a mathematical model | |
| 610 | 1 | |a ignition delay time | |
| 701 | 1 | |a Glushkov |b D. O. |c specialist in the field of power engineering |c Professor, Director of the ISHFVP of the Tomsk Polytechnic University, Doctor of Technical Sciences |f 1988- |g Dmitry Olegovich |3 (RuTPU)RU\TPU\pers\32471 |9 16419 | |
| 701 | 1 | |a Kosintsev |b A. G. |g Andrey Georgievich | |
| 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 Vysokomorny (Vysokomorniy) |b V. S. |c Specialist in the field of heat and power engineering, economist-manager |c Director of the School of Advanced Manufacturing Technologies of Tomsk Polytechnic University, Candidate of Technical Sciences |f 1984- |g Vladimir Sergeevich |3 (RuTPU)RU\TPU\pers\30302 |9 88477 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа энергетики |b Научно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова) |3 (RuTPU)RU\TPU\col\23504 |
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