TY - JOUR

T1 - Hydrodynamic effects in liquids subjected to pulsed low current arc discharges

AU - Gidalevich, E.

AU - Boxman, R. L.

AU - Goldsmith, S.

PY - 2004/5/21

Y1 - 2004/5/21

N2 - Hydrodynamic phenomena in liquids associated with low current electrical discharges were analysed theoretically and the radial plasma column expansion was considered as an arbitrary discontinuity propagation. For assumed initial discharge channel radii of R0 = 10-6 and 10-5 m, the initial temperatures in the discharge channel was found to be T 0 = 1.4 × 106 and 6.5 × 104 K for a discharge current of I = 1 A, and T0 = 6.5 × 106 and 3 × 105 K for I = 10 A. The temperature decreases during the initial ∼10-8 s, due to radial plasma column expansion. During the initial 10-8 s the velocity of the plasma column expansion exceeds the speed of sound in the undisturbed water (by 5-15 times), creating a shock wave in the water with a pressure discontinuity of ≈105 atm, and a relaxation length of 10-4 m.

AB - Hydrodynamic phenomena in liquids associated with low current electrical discharges were analysed theoretically and the radial plasma column expansion was considered as an arbitrary discontinuity propagation. For assumed initial discharge channel radii of R0 = 10-6 and 10-5 m, the initial temperatures in the discharge channel was found to be T 0 = 1.4 × 106 and 6.5 × 104 K for a discharge current of I = 1 A, and T0 = 6.5 × 106 and 3 × 105 K for I = 10 A. The temperature decreases during the initial ∼10-8 s, due to radial plasma column expansion. During the initial 10-8 s the velocity of the plasma column expansion exceeds the speed of sound in the undisturbed water (by 5-15 times), creating a shock wave in the water with a pressure discontinuity of ≈105 atm, and a relaxation length of 10-4 m.

UR - http://www.scopus.com/inward/record.url?scp=2542534663&partnerID=8YFLogxK

U2 - 10.1088/0022-3727/37/10/014

DO - 10.1088/0022-3727/37/10/014

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:2542534663

SN - 0022-3727

VL - 37

SP - 1509

EP - 1514

JO - Journal of Physics D: Applied Physics

JF - Journal of Physics D: Applied Physics

IS - 10

ER -