CFD Simulation of the Gas-Operated Weapon Drive Applied to the UK-59 Machine Gun
Keywords:CFD simulation, ANSYS Fluent, gas-operated weapon, discharge coefficient, propellant gases, gas cylinder
The flow characteristics of propellant gases inside the gas cylinder of the weapon gas-operated mechanism, applied to the UK-59 machine gun, are studied. Computational Fluid Dynamics (CFD) in ANSYS Fluent is used for the simulation of flow through the gas port from the barrel bore to the gas cylinder and back. The study's findings are presented along with the piston law of motion and thermodynamic quantities of gases inside the cylinder, specifically the pressure, temperature, and velocity distribution of gases in the cylinder for various piston displacements. The experiment was carried out to specify the pressure of the gases in the cylinder, as well as the displacement of the piston. The experimentally obtained values are compared to the simulation results with a very good agreement.
Engineering Design Handbook: Guns Series. Automatic Weapons [online]. Washington: AMC Headquarters, 1970 [viewed 2022-01-06]. Available from: https://apps.dtic.mil/sti/pdfs/AD0868578.pdf
BALLA, J., L. POPELÍSKÝ and Z. KRIST. Theory of High Rate of Fire Automatic Weapon with together Bound Barrels and Breeches. WSEAS Transactions on Applied and Theoretical Mechanics, 2010, 5(1), pp. 71-80. ISSN 1991-8747.
JEVTIC, D., D. MICKOVIĆ, S. JARAMAZ, P. ELEK, M. MARKOVIC and S. ZIVKOVIC. Modelling of Gas Parameters in the Cylinder of the Automatic Gun during Firing. Thermal Science, 2020, 24(6), pp. 4135-4215. DOI 10.2298/TSCI200118152J.
HORÁK, V., L. DO DUC, R. VÍTEK, S. BEER and Q.H. MAI. Prediction of the Air Gun Performance. Advances in Military Technology, 2014, 9(1), pp. 31-44. ISSN 1802-2308.
TIEN, V.D., M. MACKO, S. PROCHÁZKA and V.V. BIEN. Mathematical Model of a Gas-Operated Machine Gun. Advances in Military Technology, 2022, 17(1), pp. 63-77. DOI 10.3849/aimt.01449.
KARTHIK, G.S., K.J.Y. KUMAR and V. SESHADRI. Prediction of Performance Characteristics of Orifice Plate Assembly for Non-Standard Conditions Using CFD. International Journal of Engineering and Technical Research (IJETR), 2015, 3(5), pp. 162-167. ISSN: 2321-0869.
BAGASKARA, A. and M.A. MOELYADI. CFD Based Prediction of Discharge Coefficient of Sonic Nozzle with Surface Roughness. Journal of Physics: Conference Series, 2018, 1005. DOI 10.1088/1742-6596/1005/1/012010.
VU, D.T., S. PROCHÁZKA, Z. KRIST, H.B. LE and B.V. VO. CFD Simulation of Propellant Gas Flow Motion in Gas-Operated Systems. In: 2021 International Conference on Military Technologies (ICMT). Brno: IEEE, 2021, pp. 1-7. DOI 10.1109/ICMT52455.2021.9502808.
DUTTA, T., K.P. SINHAMAHAPATRA and S.S. BANDYOPDHYAY. Comparison of Different Turbulence Models in Predicting the Temperature Separation in a Ranque-Hilsch Vortex Tube. International Journal of Refrigeration, 2010, 33(4), pp. 783-792. ISSN 0140-7007.
BEER, S., L. JEDLIČKA, and B. PLÍHAL. Barrel Weapons Interior Ballistics (in Czech). Brno: University of Defence, 2004. ISBN 978-80-85960-83-9.
VU, D.T., S. PROCHÁZKA, Z. KRIST and V.B. VO. Influence of Gas Port on Forces and Their Impulses Acting in an Automatic Weapon. In: 2021 International Conference on Military Technologies (ICMT). Brno: IEEE, 2021, pp. 1-8. DOI 10.1109/ICMT52455.2021.9502832.
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