Interfacial flow patterns on a static liquid drop with forced internal circulation
In the absence of interfacial turbulence and mass transfer, the interfacial motion on a forming liquid drop results purely from shear transmitted by internal motion of the fluid inside the drop, just underneath the interface. The shear-induced motion in the interface was observed by placing light reflecting hollow glass beads on the interface of a static liquid drop with forced internal circulation and photographing their motion. Two, four, and six symmetrical flow patterns were observed on the interface when the Reynolds number based on the density and viscosity of the drop fluid, the velocity through nozzle, and the nozzle diameter was varied over a range of 8 to 34, 60 to 150, and 220 to 270, respectively. The shape of each of the two pattern flows was approximately elliptical, while that of the four and six pattern flow was approximately triangular. The gradual change from two to four, and four to six patterns occurred in the range of Reynolds number 34 to 60, and 150 to 220, respectively. No distinguishable motion was observed at Reynolds numbers less than 8.
- Research Organization:
- Ames Lab., Ames, IA (United States)
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 7218660
- Report Number(s):
- IS-T-754
- Resource Relation:
- Other Information: Thesis
- Country of Publication:
- United States
- Language:
- English
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