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Three-dimensional surface characteristics of a falling liquid film |
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| Authors: | Ronald P. Salazar Ekkehard Marschall |
| Affiliation: | Mechanical and Environmental Engineering Department, University of California, Santa Barbara, CA 93106, U.S.A. |
| Abstract: | Optical methods are described for examining the three-dimensional character of waves on a falling liquid film. This involved monitoring the motion of the local film surface normal through the use of laser beam refraction. The wavy motion was found to be primarily of a two-dimensional nature only for Re (equal to 4Q/v) less than 1500. Surface characteristics were examined for Reynolds numbers from 217 to 4030 and for different distances along the direction of flow. |
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