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Dynamics of a rotating layer of an ideal electrically conducting incompressible inhomogeneous fluid in an equatorial region

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Abstract

The equations describing the three-dimensional equatorial dynamics of an ideal electrically conducting inhomogeneous rotating fluid are studied. The magnetic and velocity fields are represented as superpositions of unperturbed steady-state fields and those induced by wave motion. As a result, after introducing two auxiliary functions, the equations are reduced to a special scalar one. Based on the study of this equation, the solvability of initial-boundary value problems arising in the theory of waves propagating in a spherical layer of an electrically conducting density-inhomogeneous rotating fluid in an equatorial zone is analyzed. Particular solutions of the scalar equation are constructed that describe small-amplitude wave propagation.

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References

  1. S. E. Kholodova, “Wave Motions in a Compressible Stratified Rotating Fluid,” Zh. Vychisl. Mat. Mat. Fiz. 47, 2101–2109 (2007) [Comput. Math. Math. Phys. 47, 2014–2022 (2007)].

    MathSciNet  Google Scholar 

  2. S. E. Kholodova, “Dynamics of a Rotating Layer of an Ideal Electrically Conducting Incompressible Fluid,” Zh. Vychisl. Mat. Mat. Fiz. 48, 882–898 (2008) [Comput. Math. Math. Phys. 48, 834–849 (2008)].

    MATH  MathSciNet  Google Scholar 

  3. S. E. Kholodova, “Quasi-Geostrophic Motions in a Rotating Layer of an Electrically Conducting Fluid,” Prikl. Mekh. Tekh. Fiz. 50(1), 30–41 (2009).

    MathSciNet  Google Scholar 

  4. S. E. Kholodova, Mathematical Simulation of Large-Scale Motions in a Spherical Layer of a Stratified Electrically Conducting Fluid, Vestn. St. Petersburg. Univ. Ser. 10: Prikl. Mat. Inf. Protsessy Upr. 1, 118–133 (2009).

    Google Scholar 

  5. S. E. Kholodova, “Wave Motions in a Stratified Electrically Conducting Rotating Fluid,” Zh. Vychisl. Mat. Mat. Fiz. 49, 916–922 (2009) [Comput. Math. Math. Phys. 49, 881–886 (2009)].

    MATH  MathSciNet  Google Scholar 

  6. S. E. Kholodova and S. I. Peregudin, Modeling and Analysis of Streams and Waves in Liquid and Granular Mediums (S.-Peterb. Gos. Univ., St. Petersburg, 2009) [in Russian].

    Google Scholar 

  7. H. Alfven and C.-G. Falthammer, Cosmical Electrodynamics (Oxford Univ. Press, London, 1963; Mir, Moscow, 1967).

    MATH  Google Scholar 

  8. Yu. Z. Aleshkov, Mathematical Modeling of Physical Processes (S.-Peterb. Gos. Univ., St. Petersburg, 2001) [in Russian].

    Google Scholar 

  9. Yu. F. Gun’ko, A. V. Norin, and B. V. Filippov, Electromagnetic Gas Dynamics of Plasmas (S.-Peterb. Gos. Univ., St. Petersburg, 2003) [in Russian].

    Google Scholar 

  10. L. D. Landau and E. M. Lifshitz, Course of Theoretical Physics, Vol. 2: The Classical Theory of Fields (Nauka, Moscow, 1988; Pergamon, Oxford, 1975).

    Google Scholar 

  11. L. D. Landau and E. M. Lifshitz, Electrodynamics of Continuous Media (Pergamon, Oxford, 1960; Nauka, Moscow, 1992).

    MATH  Google Scholar 

  12. J. A. Shercliff, A Textbook of Magnetohydrodynamics (Pergamon, Oxford, 1965 Mir, Moscow, 1967).

    Google Scholar 

  13. S. A. Gabov and A. G. Sveshnikov, Linear Problems of Unsteady Internal Waves (Nauka, Moscow, 1990) [in Russian].

    Google Scholar 

  14. S. A. Gabov, New Problems of Mathematical Wave Theory (Nauka, Moscow, 1998) [in Russian].

    MATH  Google Scholar 

  15. S. I. Braginskii, “Magnetic Fluid Dynamics of the Earth’s Core,” Geomagn. Aeron. 4, 898–916 (1964).

    Google Scholar 

  16. S. I. Braginskii, “Waves in a Stably Stratified Layer on the Surface of the Earth’s Core,” Geomagn. Aeron. 3, 476–482 (1987).

    Google Scholar 

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Correspondence to S. I. Peregudin.

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Original Russian Text © S.I. Peregudin, S.E. Kholodova, 2010, published in Zhurnal Vychislitel’noi Matematiki i Matematicheskoi Fiziki, 2010, Vol. 50, No. 11, pp. 1973–1987.

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Peregudin, S.I., Kholodova, S.E. Dynamics of a rotating layer of an ideal electrically conducting incompressible inhomogeneous fluid in an equatorial region. Comput. Math. and Math. Phys. 50, 1871–1885 (2010). https://doi.org/10.1134/S0965542510110114

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  • DOI: https://doi.org/10.1134/S0965542510110114

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