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Numerical Study on Behavior of Hydrogen Ice Pellet in Drift Tube

Takehiko Yokomine, Yukihiro Yonemoto, Shinji Ebara, Akihiko Shimizu

Fusion Science and Technology / Volume 47 / Number 3 / April 2005 / Pages 779-783

Technical Paper / Fusion Energy - Plasma Engineering, Heating, Current Drive, and Control

Pellet injection with a bent drift tube is considered as one of the flexible methods to have a variety of fueling locations and injection angles in fusion plasma. Since both pellet mass and velocity greatly affect the plasma properties, mass loss and velocity attenuation of the pellet in the drift tube should be evaluated properly. We focused on the impact of the pellet on the tube wall and numerically estimated the mass loss and the velocity attenuation.

 
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