Computational modeling of electrostatic charge and fields produced by hypervelocity impact

Journal Article · Tue May 19 00:00:00 EDT 2015 · Procedia Engineering

DOI:https://doi.org/10.1016/j.proeng.2015.04.013· OSTI ID:1214659

Crawford, David A. ^[1]

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1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Following prior experimental evidence of electrostatic charge separation, electric and magnetic fields produced by hypervelocity impact, we have developed a model of electrostatic charge separation based on plasma sheath theory and implemented it into the CTH shock physics code. Preliminary assessment of the model shows good qualitative and quantitative agreement between the model and prior experiments at least in the hypervelocity regime for the porous carbonate material tested. The model agrees with the scaling analysis of experimental data performed in the prior work, suggesting that electric charge separation and the resulting electric and magnetic fields can be a substantial effect at larger scales, higher impact velocities, or both.

• Research Organization: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
• Sponsoring Organization: USDOE
• Grant/Contract Number: AC04-94AL85000
• OSTI ID: 1214659
• Journal Information: Procedia Engineering, Vol. 103, Issue C; ISSN 1877-7058
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
magnetic field
electric field
plasma
hypervelocity impact