Collapsing-caviton turbulence in one dimension

Journal Article · Mon Feb 24 04:00:00 EST 1986 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.56.838· OSTI ID:6044574

Russell, D; DuBois, D F; Rose, H A

A statistical theory of strong Langmuir turbulence based on self-similarly collapsing cavitons is tested in one spatial dimension by study of the solutions of a set of nonlinear equations which includes, as a special case, the Zakharov equations. Single-caviton solutions exhibiting predicted self-similar collapse are verified numerically for special initial conditions. Multiple-caviton systems are studied over many generations of collapse. Long-time--averaged spectra do not contain the power-law inertial regime predicted by the theory because of nucleation at small scales.

• Research Organization: Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
• OSTI ID: 6044574
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 56:8; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700105* -- Fusion Energy-- Plasma Research-- Plasma Kinetics-Theoretical-- (-1987)
CAVITATION
MATHEMATICS
NONLINEAR PROBLEMS
NUMERICAL SOLUTION
ONE-DIMENSIONAL CALCULATIONS
PLASMA
PLASMA WAVES
STATISTICS
TURBULENCE