Angular Distribution of Flow from Orifices and Tubes at High Knudsen Numbers
作者： R. E. Stickney , R. F. Keating , S. Yamamoto , W. J. Hastings
DOI: 10.1116/1.1492511
关键词: Knudsen number 、 Flow measurement 、 Knudsen equation 、 Thermal ionization 、 Analytical chemistry 、 Intensity (heat transfer) 、 Chemistry 、 Free molecular flow 、 Body orifice 、 Knudsen flow 、 Atomic physics
摘要: The flow of cesium vapor from orifices and tubes into vacuum was investigated experimentally. Using a surface ionization gauge, the intensity field measured at various angular positions center line for Knudsen numbers ranging approximately 1 to 100. dependence distribution center-line on number is reported cylindrical apertures having length-to-diameter ratios 0.04, 1.15, 3.03, 5.63.
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