Abstract
At sufficiently high velocity, an energetic gaseous interface is formed between the projectile and the gun wall. We analyze the flow in this interface in the regime of moderately high velocity. The effect of this gaseous interface is to push the gun wall radially outward and shrink the projectile radially inward. Our studies show that significant plasma blow-by can be expected in most experimental railguns in which organic polymers are used as insulators. Since plasma leakage may result in the reduction of propulsion pressure and possibly induce the separation of the primary, the results point to the importance of having sufficiently stiff barrels and structurally stiff but ‘ballistically compliant’ projectile designs.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1213-1218 |
| Number of pages | 6 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 29 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1 1993 |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering
Cite this
The Projectile-Wall Interface in Rail Launchers. / Thio, Y. C.; Huerta, M. A.; Boynton, G. C.; Tidman, D. A.; Wang, S. Y.; Winsor, N. K.
In: IEEE Transactions on Magnetics, Vol. 29, No. 1, 01.01.1993, p. 1213-1218.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The Projectile-Wall Interface in Rail Launchers
AU - Thio, Y. C.
AU - Huerta, M. A.
AU - Boynton, G. C.
AU - Tidman, D. A.
AU - Wang, S. Y.
AU - Winsor, N. K.
PY - 1993/1/1
Y1 - 1993/1/1
N2 - At sufficiently high velocity, an energetic gaseous interface is formed between the projectile and the gun wall. We analyze the flow in this interface in the regime of moderately high velocity. The effect of this gaseous interface is to push the gun wall radially outward and shrink the projectile radially inward. Our studies show that significant plasma blow-by can be expected in most experimental railguns in which organic polymers are used as insulators. Since plasma leakage may result in the reduction of propulsion pressure and possibly induce the separation of the primary, the results point to the importance of having sufficiently stiff barrels and structurally stiff but ‘ballistically compliant’ projectile designs.
AB - At sufficiently high velocity, an energetic gaseous interface is formed between the projectile and the gun wall. We analyze the flow in this interface in the regime of moderately high velocity. The effect of this gaseous interface is to push the gun wall radially outward and shrink the projectile radially inward. Our studies show that significant plasma blow-by can be expected in most experimental railguns in which organic polymers are used as insulators. Since plasma leakage may result in the reduction of propulsion pressure and possibly induce the separation of the primary, the results point to the importance of having sufficiently stiff barrels and structurally stiff but ‘ballistically compliant’ projectile designs.
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UR - http://www.scopus.com/inward/citedby.url?scp=11744384815&partnerID=8YFLogxK
U2 - 10.1109/20.195755
DO - 10.1109/20.195755
M3 - Article
AN - SCOPUS:11744384815
VL - 29
SP - 1213
EP - 1218
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
SN - 0018-9464
IS - 1
ER -