The NASA STI Program Office . . . in Profile | |||||||
Since its founding, NASA has been dedicated to the advancement of aeronautics and space science. The NASA Scientific and Technical Information (STI) Program Office plays a key part in helping NASA maintain this important role.
The NASA STI Program Office is operated by Langley Research Center, the Lead Center for NASA's scientific and technical information. The NASA STI Program Office provides access to the NASA STI Database, the largest collection of aeronautical and space science STI in the world. The Program Office is also NASA's institutional mechanism for disseminating the results of its research and development activities. These results are published by NASA in the NASA STI Report Series, which includes the following report types:
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C. Benjapiyaporn, V. Timchenko, E. Leonardi and G. de Vahl Davis
The University of New South Wales, Sydney NSW, Australia
H. C. de Groh III
NASA Glenn Research Center, Cleveland OH, USA
In this paper we numerically investigate the effects of g-jitter on directional solidification. A background gravity of 1 mg has been assumed, and new results for the effects of periodic disturbances over a range of amplitudes and frequencies on solute field and segregation have been presented.
ABSTRACT
1. INTRODUCTION
4. VALIDATION
6. CONCLUSIONS