Geodesic
Numerical investigation of aerodynamic characteristics of two different component bodies at various angles of attack
Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika, no. 64 (2020), pp. 136-145
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The paper presents mathematical modeling results for a supersonic flow around two types of component elements in a composite system designed for fire extinguishing shells. Such shells represent a complex composite system which consists of the elements with a fire extinguishing powder mixture contained inside. Directional separation and controlled dispersion of the parts of the purpose-designed shell allow one to extinguish a fire bed over a long distance and to reduce the time of fire suppression. Complete and reliable information about supersonic separated flow effects on the aerodynamic characteristics of the component elements makes it possible to simulate a separation mechanism and to assess dispersion of the arranged bodies. The paper presents the calculated values of the aerodynamic coefficients for the models of two geometry types depending on the angle of attack and a comparison with experimental data. Discrepancy between the theoretical results obtained and experimental data on the main aerodynamic characteristics does not exceed 5%. For the bodies under consideration, the difference in drag coefficients is up to 10%; as for lift and pitch moment coefficients, the difference is less than 5% for the angle of attack in the range of 0$^\circ$ and 10$^\circ$, and reaches 30% when the angle is more than 15$^\circ$.
Keywords: aerodynamics, mathematical modeling, supersonic flows, lift force.
Mots-clés : aerodynamic drag coefficient 
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     title = {Numerical investigation of aerodynamic characteristics of two different component bodies at various angles of attack},
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N. P. Skibina; N. R. Gimaeva; N. V. Savkina; E. A. Maslov. Numerical investigation of aerodynamic characteristics of two different component bodies at various angles of attack. Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika, no. 64 (2020), pp. 136-145. http://geodesic.mathdoc.fr/item/VTGU_2020_64_a9/

[1] Todd W. Erickson, Golshany, Lynnwood, A. Songstad, Everett, Adriana W. Blom, Jacqueline A. Artis, Christopher R. Holtorf, Natalie Daughtry, Fire-retarding artillery shell, Patent US, No 20160216091A1, 2014

[2] A. Clark, Boeing Patents a System to Fight Fire With Artillery, 2019 (submitted on July 7, 2019)

[3] D. A. Zhuykov, Development of a fire extinguishing method using a barrel installation for a container delivery of extinguishing agents to a remote distance, Extended abstract of PhD dissertation, Togliatti State University, M., 2007

[4] V. V. Potapenko, Mathematical modeling of ballistic processes with barrel systems for throwing containers with extinguishing agents, Extended abstract of PhD dissertation, Saint Petersburg University of State Fire Service of EMERCOM of Russia, Saint Petersburg, 2012

[5] China used artillery to extinguish a forest fire (submitted on May 6, 2019)

[6] A. Yu. Snegirev, High-performance computing in technical physics. Numerical modeling of turbulent flows, Polytechnic University Publ., Saint Petersburg, 2009

[7] V. V. Faraponov, N. V. Savkina, A. S. Diachkovsky, A. V. Chupashev, “Calculation of aerodynamic factor of front resistance of a body in subsonic and transonic modes of movement by means of an ANSYS Fluent package”, Computer Research and Modeling, 4:4 (2012), 845–853 | DOI

[8] F. R. Menter, M. Kuntz, R. Langtry, “Ten Years of Experience with the SST Turbulence Model”, Turbulence, Heat and Mass Transfer, v. 4, eds. K. Hanjalic, Y. Nagano, M. Tummers, Begell House Inc, 2003, 625–632

[9] A. A. Dmitrievskiy, L. N. Lysenko, External ballistics, Mashinostroenie, M., 2005

[10] K. Kusaiynov, N. K. Tanasheva, M. M. Turgunov, A. R. Alibekova, “Analysis of aerodynamic characteristics of rotating porous cylinders”, Technical Physics Letters, 60:5 (2015), 656–659 | DOI