Abstract

A quasi-one-dimensional method was devised for calculating transient, compressible, viscous flows through packet beds and over tube bundles. The method was applied to study the impulsive crossflow of a lithium plasma through an array of liquid jets, a problem that arises in the design of inertial confinement fusion reactors. The jet array was a close-packed annular arrangement with the plasma initially contained within the annular cavity so that the flow was cylindrically divergent. It was found that the crosswise momentum imparted to the jets by the plasma derived mainly from form or profile drag and that skin friction effects were negligible. Plasma drag was estimated to contribute about 20% of the total radial impulse resulting from the pellet microexplosion.

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