. The Drag and shape of air bubbles moving in liquids. Bubbles; Fluid dynamics. 15 Equivalent Radius, cm Reynolds Number 1460 4570 13,790 Scale 0-375/1 Time Inter- val, sec Figure 8 - Photographs Showing the Shape and Paths of Typical Bubbles for Reynolds Numbers Greater than 1100 SPHERICAL CAPS Taylor and Davies17 made extensive Investigations of bubbles having the shape of spherical caps. They suggest that the drag coefficient and shape of spherical-cap bubbles are independent of the Reynolds number. Their em- pirical relation between th
. The Drag and shape of air bubbles moving in liquids. Bubbles; Fluid dynamics. 15 Equivalent Radius, cm Reynolds Number 1460 4570 13,790 Scale 0-375/1 Time Inter- val, sec Figure 8 - Photographs Showing the Shape and Paths of Typical Bubbles for Reynolds Numbers Greater than 1100 SPHERICAL CAPS Taylor and Davies17 made extensive Investigations of bubbles having the shape of spherical caps. They suggest that the drag coefficient and shape of spherical-cap bubbles are independent of the Reynolds number. Their em- pirical relation between the rate of rise and bubble size provides a value of for the drag coefficient which is in complete agreement with the TMB ex- perimental results shown in Figure 5. The results of a number of measurements of selected bubble dimensions presented in Figure 12 likewise agree with their conclusion regarding the geometric similarity of spherical caps of various sizes. By using the experimental values of the subtended angle and the ratio a/b,-a somewhat idealized picture of a representative bubble can be con- structed as is shown in Figure 12. The value for R/r cannot be utilized in. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Benn, Ben, 1884-; David W. Taylor Model Basin. Washington, D. C. : Navy Dept. , David W. Taylor Model Basin
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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
