...上升速度;上升规律;水深;水动力学 [gap=1565]Keywords: rising air bubble technique for discharge measurement; bubble;rising velocity; characteristics of rising motion; water depth;hydrodynamics ..
The mathematical model for bubble risingvelocity in the initial and middle regions is in good agreement with experimental data.
该模型能够较好地符合上升初始段及中间段的气泡上升速度。
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This paper reports some experimental results on variation of voidage in bed materials, bubble size and bubble risingvelocity etc along the height of the bed.
The more the bubble close to the free surface, the narrower the bottom jet develops crosswise, and the larger the pressure gradient, the risingvelocity and the height of the bottom jet is upwards.