On the Drag Effect of a Refuelling Pellet

Tinghong Chang, Poul Michelsen

    Research output: Contribution to journalJournal articleResearchpeer-review


    A refueling pellet is subjected mainly to two kinds of drags: (1) inertial drag caused by the motion of the pellet relative to the surrounding plasma, and (2) ablation drag caused by an uneven ablation rate of the front and the rear surface of the pellet in an inhomogeneous plasma. Computational results showed that for reasonable combinations of pellet size and injection speed, the drag effect is hardly detectable for plasma conditions prevailing in current large tokamaks.
    Original languageEnglish
    JournalJournal of Fusion Energy
    Issue number3
    Pages (from-to)253-257
    Publication statusPublished - 1981


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