Abstract
In this paper, we study the statistical characteristics of the Riemann wave and the integral of it. Such problems arise in the physics of fronts’ propagation, in particular, during the wave run-up on the shore, a flame front, and phase surfaces. Using the relation of the Lagrangian and Eulerian statistical descriptions, we obtained general expressions for the probability distributions of the front velocity and its displacement. We show that the joint probabilistic distribution of displacement, velocity, and acceleration at the input of a nonlinear medium are necessary to find the probability distribution of displacement. Based on the idea of probability as the time the signal spent in a certain interval, the characteristics of the waves after their breaking were calculated.
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Funding
This work was supported by the Russian Science Foundation, project nos. 19-12-00256 (Section 2 CIS) and 16-17-00041 (Section 3 UNR).
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Translated by A. Ivanov
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Gurbatov, S.N., Pelinovsky, E.N. Probability Distributions of the Riemann Wave and an Integral of It. Dokl. Phys. 65, 269–272 (2020). https://doi.org/10.1134/S1028335820080029
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DOI: https://doi.org/10.1134/S1028335820080029