Title
Uticaj promene gasodinamičkih karakteristika barutnih gasova na intenzitet natpritiska primenom specijalnih gasnih uređaja oružja
Creator
Hristov, Nebojša, 1978-
Copyright date
2015
Object Links
Select license
Autorstvo-Nekomercijalno-Bez prerade 3.0 Srbija (CC BY-NC-ND 3.0)
License description
Dozvoljavate samo preuzimanje i distribuciju dela, ako/dok se pravilno naznačava ime autora, bez ikakvih promena dela i bez prava komercijalnog korišćenja dela. Ova licenca je najstroža CC licenca. Osnovni opis Licence: http://creativecommons.org/licenses/by-nc-nd/3.0/rs/deed.sr_LATN. Sadržaj ugovora u celini: http://creativecommons.org/licenses/by-nc-nd/3.0/rs/legalcode.sr-Latn
Language
Serbian
Cobiss-ID
Inventory ID
D-2897
Theses Type
Doktorska disertacija
description
Datum odbrane: 29.01.2016.
Other responsibilities
mentor
Savić, Slobodan, 1966-
član komisije
Filipović, Nenad, 1970-
član komisije
Tančić, Ljubiša, 1955-
član komisije
Ilić, Slobodan.
član komisije
Kari, Aleksandar.
Academic Expertise
Tehničko-tehnološke nauke
University
Univerzitet u Kragujevcu
Faculty
Fakultet inženjerskih nauka
Publisher
[N. Hristov]
Format
229 listova
description
Prilozi.
Abstract (en)
This doctoral dissertation presents the theoretical models of the shock wave
overpressure powder gases propagation around the weapon barrel. Analytical and
numerical mathematical models have been defined. These models describe the physical
phenomena of wave propagation based on acoustic and gas dynamic principles. Based on
the mathematical models, electro-acoustic analogy and CFD techniques, the appropriate
computational models for simulation of the shock wave propagation and monitoring of
the overpressure value in the field around the firearm barrel with and without special gas
devices have been created. The changes of the primary gas dynamic parameters in the
defined spatial points in relation to the wave source or the last section of the gun barrel
have been determined by the simulation models.
Experimental tests were performed on a real model by registering the shock wave
overpressure changes in the defined spatial points. In addition to the primary parameter
monitoring, the impact of silencer to change of the projectile initial velocity was
measured.
The comparative analysis of the calculations and experimental results has provided the
qualitative assessment of simulation models. In addition, possible applications of the
simulation models in design of new weapon gas devices have been defined, with remarks
on additional checks and possible modifications.
The research performed in this paper has yielded an optimized mathematical model
and optimized numerical techniques based on the unsteady RANS multiphase model for
simulation of the main shock wave gunpowder gas parameters during the firing process.
The numerical simulation model has been used to visualize the process and thus illustrate
the real physical process of the shock wave propagation.
Authors Key words
natpritisak barutnih gasova, prostiranje udarnog talasa, prigušivač, redukcija pritiska barutnih gasova, elektro-akustičke analogije, dekompozitni pristup, faktor usmerenosti, CFD, nestacionarni RANS višefazni model
Authors Key words
gunpowder gases overpressure, shock wave, silencer, pressure
reduction, electro-acoustic analogies, decomposite approach, directivity factor, CFD,
unsteady RANS multiphase model
Classification
621:531
004.42:519.673
Subject
Barutni gasovi - Udarni talas - Streljačko oružje - Prigušivač pucnja
Type
Tekst
Abstract (en)
This doctoral dissertation presents the theoretical models of the shock wave
overpressure powder gases propagation around the weapon barrel. Analytical and
numerical mathematical models have been defined. These models describe the physical
phenomena of wave propagation based on acoustic and gas dynamic principles. Based on
the mathematical models, electro-acoustic analogy and CFD techniques, the appropriate
computational models for simulation of the shock wave propagation and monitoring of
the overpressure value in the field around the firearm barrel with and without special gas
devices have been created. The changes of the primary gas dynamic parameters in the
defined spatial points in relation to the wave source or the last section of the gun barrel
have been determined by the simulation models.
Experimental tests were performed on a real model by registering the shock wave
overpressure changes in the defined spatial points. In addition to the primary parameter
monitoring, the impact of silencer to change of the projectile initial velocity was
measured.
The comparative analysis of the calculations and experimental results has provided the
qualitative assessment of simulation models. In addition, possible applications of the
simulation models in design of new weapon gas devices have been defined, with remarks
on additional checks and possible modifications.
The research performed in this paper has yielded an optimized mathematical model
and optimized numerical techniques based on the unsteady RANS multiphase model for
simulation of the main shock wave gunpowder gas parameters during the firing process.
The numerical simulation model has been used to visualize the process and thus illustrate
the real physical process of the shock wave propagation.
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