Estimates of the maximum duration of communications blackout are presented for a proposed Pioneer Venus mission involving a multiprobe entry targeted to individual impact sites. Calculations of the inviscid flow about the probes have been made using both finite-rate chemistry and equilibrium chemistry computer codes. Equilibrium boundary-layer calculations including ablation are also presented both with and without the presence of alkali metal contaminants from the heat shield. Methods are described for estimating maximum electron density in the inviscid wake and the recirculation region at the base of the probes. The results presented provide a conservative basis for planning for storage and subsequent telemetry of data during the entry phase of the mission.


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    Titel :

    An analysis of communications blackout for Pioneer Venus entry probes


    Beteiligte:
    Grose, W. L. (Autor:in) / Falanga, R. A. (Autor:in) / Sutton, K. (Autor:in)

    Kongress:

    American Institute of Aeronautics and Astronautics, Aerospace Sciences Meeting ; 1975 ; Pasadena, CA


    Erscheinungsdatum :

    01.01.1975


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Analysis of Communications Blackout for Pioneer Venus Entry Probes

    William L. Grose / R.A. Falanga / Kenneth Sutton | AIAA | 1975


    An analysis of communications blackout for Pioneer Venus entry probes

    GROSE, W. / FALANGA, R. / SUTTON, K. | AIAA | 1975



    Pioneer Venus entry simulator

    Johns, C. E. | NTRS | 1976


    Thermal net flux measurements on the pioneer Venus entry probes

    Revercomb, H.E / Sromovsky, L.A / Suomi, V.E et al. | Elsevier | 1985