Experimental and numerical analysis of thermo-chemical erosion in gun steel
Abstract
Various factors of thermo-chemical erosion process in gun steel were analysed. The factors are mainly related to the thermal load of gun barrel inside surface, characteristics of barrel surface and chemical interactions between propellant combustion products and barrel surface. The experimental simulation of conditions in gun barrel was carried out by vented vessel firings in the device based on modification of 37 mm M39 gun. The nozzle mass loss during firing was the measure of gun steel erosion. The main thermal factor of erosion is maximum nozzle inner surface temperature. This temperature was determined experimentally by micro thermocouples measurements at specified distance away from the inner surface and by numerical analysis of the inverse heat conduction problem. Modelling of two-phase flow of propellant combustion products and unburned propellant grains in the vented vessel and heat transfer to the nozzle were conducted using developed 1-D interior ballistic code and CFD simul...ation in FLUENT. Influence of different propellants, TiO2/wax wear reducing liner and tungsten-disulfide nanoparticles layer on nozzle erosion was analysed. Good agreement between experimental and computational results was achieved.
Keywords:
thermocouples / nanoparticles / interiorballistics / heat transfer / gun steel / CFDSource:
Thermal Science, 2019, 23, 2, 599-612Publisher:
- Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
DOI: 10.2298/TSCI180608194R
ISSN: 0354-9836
WoS: 000462414100016
Scopus: 2-s2.0-85057138110
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Institution/Community
Inovacioni centarTY - JOUR AU - Rezgui, Narimane AU - Micković, Dejan AU - Živković, Saša AU - Ivanović, Ivana PY - 2019 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3243 AB - Various factors of thermo-chemical erosion process in gun steel were analysed. The factors are mainly related to the thermal load of gun barrel inside surface, characteristics of barrel surface and chemical interactions between propellant combustion products and barrel surface. The experimental simulation of conditions in gun barrel was carried out by vented vessel firings in the device based on modification of 37 mm M39 gun. The nozzle mass loss during firing was the measure of gun steel erosion. The main thermal factor of erosion is maximum nozzle inner surface temperature. This temperature was determined experimentally by micro thermocouples measurements at specified distance away from the inner surface and by numerical analysis of the inverse heat conduction problem. Modelling of two-phase flow of propellant combustion products and unburned propellant grains in the vented vessel and heat transfer to the nozzle were conducted using developed 1-D interior ballistic code and CFD simulation in FLUENT. Influence of different propellants, TiO2/wax wear reducing liner and tungsten-disulfide nanoparticles layer on nozzle erosion was analysed. Good agreement between experimental and computational results was achieved. PB - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd T2 - Thermal Science T1 - Experimental and numerical analysis of thermo-chemical erosion in gun steel EP - 612 IS - 2 SP - 599 VL - 23 DO - 10.2298/TSCI180608194R ER -
@article{ author = "Rezgui, Narimane and Micković, Dejan and Živković, Saša and Ivanović, Ivana", year = "2019", abstract = "Various factors of thermo-chemical erosion process in gun steel were analysed. The factors are mainly related to the thermal load of gun barrel inside surface, characteristics of barrel surface and chemical interactions between propellant combustion products and barrel surface. The experimental simulation of conditions in gun barrel was carried out by vented vessel firings in the device based on modification of 37 mm M39 gun. The nozzle mass loss during firing was the measure of gun steel erosion. The main thermal factor of erosion is maximum nozzle inner surface temperature. This temperature was determined experimentally by micro thermocouples measurements at specified distance away from the inner surface and by numerical analysis of the inverse heat conduction problem. Modelling of two-phase flow of propellant combustion products and unburned propellant grains in the vented vessel and heat transfer to the nozzle were conducted using developed 1-D interior ballistic code and CFD simulation in FLUENT. Influence of different propellants, TiO2/wax wear reducing liner and tungsten-disulfide nanoparticles layer on nozzle erosion was analysed. Good agreement between experimental and computational results was achieved.", publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd", journal = "Thermal Science", title = "Experimental and numerical analysis of thermo-chemical erosion in gun steel", pages = "612-599", number = "2", volume = "23", doi = "10.2298/TSCI180608194R" }
Rezgui, N., Micković, D., Živković, S.,& Ivanović, I.. (2019). Experimental and numerical analysis of thermo-chemical erosion in gun steel. in Thermal Science Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 23(2), 599-612. https://doi.org/10.2298/TSCI180608194R
Rezgui N, Micković D, Živković S, Ivanović I. Experimental and numerical analysis of thermo-chemical erosion in gun steel. in Thermal Science. 2019;23(2):599-612. doi:10.2298/TSCI180608194R .
Rezgui, Narimane, Micković, Dejan, Živković, Saša, Ivanović, Ivana, "Experimental and numerical analysis of thermo-chemical erosion in gun steel" in Thermal Science, 23, no. 2 (2019):599-612, https://doi.org/10.2298/TSCI180608194R . .