Numerical simulation of entrainment of water fragments from the zone of localization of combustion and pyrolysis of forest fuel materials by air flow

D. V. Antonov, Yu K. Atroshenko, N. P. Kopylov, I. R. Khasanov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In the assessment of the scale of impact on the flame combustion, one of the most challenging factors is the influence of wind on the trajectory of fire extinguishing compositions in the gas medium during water discharge from aircraft. To predict the effect of surface transformation of free-falling volumes of water in the form of jets, drops and arrays, numerical modeling tools are essential. In this paper, the physical and mathematical models are developed, and empirical constants and dependences are calculated to take into account the size and shape of the drops in the reference points of the registration area. The results of our previous experiments and mathematical modeling both for the displacement of motion trajectories and for the coverage area of the model combustion center are found to fairly correspond. The ratios (characterizing the efficiency of typical systems of spraying and discharge) of water volumes entering the required zone of the model combustion center to total supply have been calculated. Using the developed model, the main characteristics of the studied entrainment of droplets, arrays and aerosols at the maximum possible air flow rates (up to 20 m/s) specific for hurricanes have been predicted. On the basis of the obtained approximations, the conditions of moderate and significant influence of a group of factors on the characteristics of liquid fragments entrainment have been predicted: The size and velocity, the air flow rate, the conditions of motion of an array, droplets or an aerosol cloud.

Original languageEnglish
Title of host publicationInternational Youth Scientific Conference "Heat and Mass Transfer in the Thermal Control System of Technical and Technological Energy Equipment", HMTTSC 2019
EditorsGeniy Kuznetsov, Evgeniya Orlova, Dmitry Feoktistov
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735418783
DOIs
Publication statusPublished - 9 Aug 2019
EventInternational Youth Scientific Conference on Heat and Mass Transfer in the Thermal Control System of Technical and Technological Energy Equipment 2019, HMTTSC 2019 - Tomsk, Russian Federation
Duration: 23 Apr 201925 Apr 2019

Publication series

NameAIP Conference Proceedings
Volume2135
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Youth Scientific Conference on Heat and Mass Transfer in the Thermal Control System of Technical and Technological Energy Equipment 2019, HMTTSC 2019
CountryRussian Federation
CityTomsk
Period23.4.1925.4.19

Fingerprint

entrainment
air flow
pyrolysis
fragments
water
aerosols
simulation
flow velocity
trajectories
extinguishing
hurricanes
spraying
falling
aircraft
flames
mathematical models
liquids
approximation
gases

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Antonov, D. V., Atroshenko, Y. K., Kopylov, N. P., & Khasanov, I. R. (2019). Numerical simulation of entrainment of water fragments from the zone of localization of combustion and pyrolysis of forest fuel materials by air flow. In G. Kuznetsov, E. Orlova, & D. Feoktistov (Eds.), International Youth Scientific Conference "Heat and Mass Transfer in the Thermal Control System of Technical and Technological Energy Equipment", HMTTSC 2019 [020003] (AIP Conference Proceedings; Vol. 2135). American Institute of Physics Inc.. https://doi.org/10.1063/1.5120640

Numerical simulation of entrainment of water fragments from the zone of localization of combustion and pyrolysis of forest fuel materials by air flow. / Antonov, D. V.; Atroshenko, Yu K.; Kopylov, N. P.; Khasanov, I. R.

International Youth Scientific Conference "Heat and Mass Transfer in the Thermal Control System of Technical and Technological Energy Equipment", HMTTSC 2019. ed. / Geniy Kuznetsov; Evgeniya Orlova; Dmitry Feoktistov. American Institute of Physics Inc., 2019. 020003 (AIP Conference Proceedings; Vol. 2135).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Antonov, DV, Atroshenko, YK, Kopylov, NP & Khasanov, IR 2019, Numerical simulation of entrainment of water fragments from the zone of localization of combustion and pyrolysis of forest fuel materials by air flow. in G Kuznetsov, E Orlova & D Feoktistov (eds), International Youth Scientific Conference "Heat and Mass Transfer in the Thermal Control System of Technical and Technological Energy Equipment", HMTTSC 2019., 020003, AIP Conference Proceedings, vol. 2135, American Institute of Physics Inc., International Youth Scientific Conference on Heat and Mass Transfer in the Thermal Control System of Technical and Technological Energy Equipment 2019, HMTTSC 2019, Tomsk, Russian Federation, 23.4.19. https://doi.org/10.1063/1.5120640
Antonov DV, Atroshenko YK, Kopylov NP, Khasanov IR. Numerical simulation of entrainment of water fragments from the zone of localization of combustion and pyrolysis of forest fuel materials by air flow. In Kuznetsov G, Orlova E, Feoktistov D, editors, International Youth Scientific Conference "Heat and Mass Transfer in the Thermal Control System of Technical and Technological Energy Equipment", HMTTSC 2019. American Institute of Physics Inc. 2019. 020003. (AIP Conference Proceedings). https://doi.org/10.1063/1.5120640
Antonov, D. V. ; Atroshenko, Yu K. ; Kopylov, N. P. ; Khasanov, I. R. / Numerical simulation of entrainment of water fragments from the zone of localization of combustion and pyrolysis of forest fuel materials by air flow. International Youth Scientific Conference "Heat and Mass Transfer in the Thermal Control System of Technical and Technological Energy Equipment", HMTTSC 2019. editor / Geniy Kuznetsov ; Evgeniya Orlova ; Dmitry Feoktistov. American Institute of Physics Inc., 2019. (AIP Conference Proceedings).
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