The conservation equations of plasma dynamics in the upper ionosphere of Venus have been solved by using a spectral method in the horizontal and finite differencing in the vertical direction. The effect of varying the ionopause height on the computed nightside ion densities is investigated. These ion densities show a sharp decrease as the ionopause altitude is reduced to 300 km. The effect of viscous forces on the horizontal plasma flow is investigated for a wide range of values of the coefficient of viscosity. The Reynolds numbers characteristics of the flow are calculated and the conditions for the onset of turbulence discussed. It is found that the Reynolds number can be large (greater than 1000) in the subsolar region for a coefficient of viscosity of up to 1.6 x 10 to the -10th g/cm s. The influence of magnetic fields on viscosity is also discussed.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Studies on the dynamics of Venus ionosphere - Effects of varying the ionopause height and the onset of turbulence


    Beteiligte:
    Singhal, R. P. (Autor:in) / Whitten, R. C. (Autor:in)


    Erscheinungsdatum :

    1991-04-01



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Planetary ionospheres: The Venus ionopause

    Mahajan, K. K. | Online Contents | 1995


    Waves on the subsolar ionopause of Venus

    Russell, C. T. / Singh, R. N. / Luhmann, J. G. et al. | NTRS | 1987




    Stability of the cometary ionopause

    Ershkovich, A.I. / Axford, W.I. / Ip, W.-H. et al. | Elsevier | 1989