Abstract
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.
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References
F. S. Felber, P. H. Miller, P. B. Parks, R. Prater, and D. F. Vaslow,Nucl. Fusion 19:1061 (1979).
S. L. Gralnick,Nucl. Fusion 13:703 (1973).
C. A. Foster, R. J. Colchin, S. L. Milora, K. Kim, and R. J. Turnbull,Nucl. Fusion 17:1067 (1977).
S. L. Milora, C. A. Foster, P. H. Edmonds, and G. L. Schmidt,Phys. Rev. Lett. 42:97 (1979).
P. B. Parks and R. J. Turnbull,Phys. Fluids 21:1735 (1978).
S. L. Milora and C. A. Foster,IEEE Trans. Plasma Sci. 6:578 (1978).
C. T. Chang, On the injection speed of a refuelling pellet, Risø Report No. 389, Risø National Laboratory (1978).
The JET Project, EUR-JET-R7 (1978).
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Chang, C.T., Michelsen, P. On the drag effect of a refueling pellet. J Fusion Energ 1, 253–257 (1981). https://doi.org/10.1007/BF01050358
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DOI: https://doi.org/10.1007/BF01050358