Modeling and Calculation of Initial Ignition Gas Pressure Flow through the Rigid Porous Media in 100 mm Ignition Simulator

Abstract:

To acquire better understanding of the early ignition phenomena in 100mm ignition simulator loaded with packed propellant bed, a theoretical model of ignition gas flow through rigid porous media is developed. Three pressure gauges are installed in the lateral side of ignition simulator for chamber pressure measurements after ignition. The pseupropellant loaded in the chamber is similar to the standard 13/19 single-base cylindrical propellant in size. It is composed of rigid ceramic composite with low thermo conductivity. It is assumed that the pseupropellant bed is rigid in contrast to the previous elastic porous media assumption. The calculated pressure values can be verified by the experimental data well at the low loading density of pseupropellant bed of 0.18 g/cm³. However, there is still error between the experimental and calculated results in the early pressure peak position close to the ignition primer when the loading density of pseupropellant bed increases to 0.73 and 1.06g/cm³, due to the change of local permeability of pseupropellant bed at high loading density, which is assumed a constant in the model for the modeling easily. The calculations can enable better understanding of physical processes of ignition gas flow in the ignition simulator loaded with the pseupropellant bed.

• Periodical: Advanced Materials Research (Volumes 560-561)
• Pages: 1103-1113
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.560-561.1103
• Online since: August 2012
• Authors: Zheng Gang Xiao, Wei Dong He, San Jiu Ying, Fu Ming Xu
• Keywords: Ignition, Ignition Simulator, Modeling, Porous Medium, Propellant, Simulation

References

[1] J. I. East Jr., Ignition and flamespreading phenomena in granular propellant gun charges, in Interior Ballistics of Guns, H. Krier, and M. Summerfield, eds., American Institute of Aeronautics and Astronautics, 1979, pp.228-245.

[2] L.-M. Chang, Ignition diagnostics of the 120-mm XM859-MP cartridge, Tech. Rep. BRL-TR-2840, U.S. Army Research Laboratory: Aberdeen Proving Ground, MD., 1987.

DOI: 10.21236/ada187867

[3] D. E. Kooker, L.-M. Chang, and S. L. Howard, Flamespreading in granular solid propellant: design of an experimen, ARL-MR-80, U.S. Army Research Laboratory: Aberdeen Proving Ground, MD., (1993)

[4] D. E. Kooker, S. L. Howard, and L.-M. Chang, Flamespreading in granular solid propellant: initial results, ARL-TR-446, U.S. Army Research Laboratory: Aberdeen Proving Ground, MD., 1994.

[5] A. L. Brant, J. W. Colburn, C. R. Ruth, and D. W. Worthington, Flamespreading Processes in Ball Powder Propellants, ARL-TR-731, U.S. Army Research Laboratory: Aberdeen Proving Ground, MD., 1995.

[6] D. E. Kooker, L.-M. Chang, and S. L. Howard, Convective ignition of a granular solid propellant bed: influence of propellant composition, in 26th symposium (international) on combustion, Volume II, The Combustion Institute, Pittsburgh, Pennsylvania, USA, (1996)

DOI: 10.1016/s0082-0784(96)80027-0

[7] S. Jaramaz, Flamespreading during Base Ignition of Propellant Charge: Theoretical and Experimental Studies, Propellants, Explosives, Pyrotechnics 22 (1997) 326-332.

DOI: 10.1002/prep.19970220606

[8] K. K. Guo, and P. Ferrara, Flame spreading and combustion behavior of gun propellants packed in high loading densities, ADA426407, U.S. Army Research Laboratory: Aberdeen Proving Ground, MD., 2004.

DOI: 10.21236/ada426407

[9] I. W. May, and A. W. Horst, Charge design considerations and their effect on pressure waves in guns, in Interior Ballistics of Guns, H. Krier, and M. Summerfield, eds., American Institute of Aeronautics and Astronautics, 1979, pp.197-227.

[10] L.-M. Chang, and J. J. Rocchio, Simulator diagnostics of the early phase ignition phenomena in a 105-mm Tank gun chamber, Tech. Rep. BRL-TR-2890, U.S. Army Ballistic Research Laboratory: Aberdeen Proving Ground, MD., 1988.

DOI: 10.21236/ada195514

[11] H. Miura, A. Matsuo, and Y. Nakamura, Three-Dimensional Simulation of Pressure Fluctuation in a Granular Solid Propellant Chamber within an Ignition Stage, Propellants Explos. Pyrotech. 36(2011) 259-267.

DOI: 10.1002/prep.201000058

[12] J. R. Schmidt, and M. J. Nusca, Progress in the Development of a Multiphase Turbulent Model of the Gas/Particle Flow in a Small-Caliber Ammunition Primer, ARL-TR-3860, U.S. Army Research Laboratory: Aberdeen Proving Ground, MD., 2006.

[13] M. J. Nusca, and S. L. Howard, Experimental and Modeling Studies of Plasma Injection by an Electrothermal Igniter Into a Solid Propellant Gun Charge, ARL-TR-3806, U.S. Army Research Laboratory: Aberdeen Proving Ground, MD., 2006.

DOI: 10.21236/ada449946

[14] M. Song, Porous medium models for the early stages in the interior ballistic cycle, ACTA Armamentarii, 31(2) (1992) 12-18.

[15] C. Fu, Z. Zhang, and W. Tan, Numerical simulation of thermal convection of a viscoelastic fluid in a porous square box heated from below, Physics of fluids, 19(2007) 104-107

DOI: 10.1063/1.2800358

[16] F. Xu, P. Sofronics, N. Aravas, and S. Meyer, Constitutive modeling of porous viscoelastic materials, European Journal of Mechanics A/solids, 26(2007) 936-955.

DOI: 10.1016/j.euromechsol.2007.05.008

[17] M. B. Allen, Numerical modelling of multiphase flow in porous media, Adv. Water Resources, 8(1985) 162-187.

DOI: 10.1016/0309-1708(85)90062-4

[18] R. E. Collins, Flow of fluids through porous material. Reinhold publishing corporation, New York, 1961.

[19] P. J. Fox, Y. Zhu, and J. P. Morris, Fundamental Research on the Mechnicals of Fluid Flow through Porous Media, Fin. Rep. ADA383619, Purdue University, West Lafayeett, IN, USA, 2000.