| Autor: |
Marius Beniuga, Silviu Sprinceana, Ioan Mihai, Cornel Suciu |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VII. |
| ISSN: |
0277-786X |
| DOI: |
10.1117/12.2070430 |
| Popis: |
The work presented herein illustrates the differences between aerodynamic friction coefficients of liquid droplets of different shapes and dimensions that come into contact with air. Aerodynamic friction forces on a drop can be calculated if the aerodynamic co efficient of friction and cross-sectional area normal to the flow are known. The cross-sectional area can be calculated on the basis of the maximum diameter of the droplet, d c , if it is assumed that the deformed droplets have the form of a flattened spheroid. According to Clift et al [6] , when a drop of liquid has weak internal tensions or high surface tensio n due to viscosity, external flow may di ffer from the surrounding liquid drop at the same Reynolds number. Internal tensions that exist in most systems of practical impo rtance are negligible compared to surface tension. Given the fact that the ratio of the viscosity of the liquid and the gas jet spray is significant, we can assume that internal circulation is an important parameter. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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