Dynamics of Langmuir collapse
Journal Article
·
· Sov. J. Plasma Phys. (Engl. Transl.); (United States)
OSTI ID:7239992
The dynamics of the nonlinear stage of the modulation instability of long plasma waves (Langmuir waves) is analyzed. The dynamics of various initial spatial distributions of the plasma waves is studied by numerical simulation. It is shown that this instability results in a Langmuir collapse: the appearance of local singularities in the amplitude of plasma waves in regions of relatively low plasma density (cavitons). The electric field in a caviton is shown to have a nonspherical dipole structure. Asymptotic self-similar solutions for large values of the time are found. The influence of Landau damping on the dynamics of the collapse is taken into account. (AIP)
- Research Organization:
- Institute of Applied Mathematics, Academy of Sciences of the USSR
- OSTI ID:
- 7239992
- Journal Information:
- Sov. J. Plasma Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Plasma Phys. (Engl. Transl.); (United States) Vol. 2:3; ISSN SJPPD
- Country of Publication:
- United States
- Language:
- English
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