Stability of imploding spherical shock waves

Journal Article · Fri Dec 01 04:00:00 EST 1995 · Journal of Fusion Energy

DOI:https://doi.org/10.1007/BF02214516· OSTI ID:415013

Chen, H B; Zhang, L; Panarella, E ^[1]

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1. Univ. of Tennessee, Knoxville, TN (United States)

The stability of spherically imploding shock waves is systematically investigated in this letter. The basic state is Guderley and Landau`s unsteady self-similar solution of the implosion of a spherical shock wave. The stability analysis is conducted by combining Chandrasekhar`s approach to the stability of a viscous liquid drop with Zel`dovich`s approach to the stability of spherical flames. The time-dependent amplitudes of the perturbations are obtained analytically by using perturbation method. The relative amplification and decay of the amplitudes of perturbations are obtained analytically by using perturbation method. The relative amplification and decay of the amplitudes of perturbations decides the stability/instability of the spherical imploding shock waves. It is found that the growth rate of perturbations is not in exponential form and near the collapse phase of the shocks, the spherically imploding shock waves are relatively stable. 14 refs., 1 fig.

• Sponsoring Organization: USDOE
• OSTI ID: 415013
• Journal Information: Journal of Fusion Energy, Journal Name: Journal of Fusion Energy Journal Issue: 4 Vol. 14; ISSN JFENDS; ISSN 0164-0313
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
HYDRODYNAMICS
LASER IMPLOSIONS
SHOCK WAVES
SPHERICAL CONFIGURATION
STABILITY