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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Qiu, Lu Dubey, Swapnil Choo, Fook Hoong Duan, Fei |
| Copyright Year | 2016 |
| Abstract | Single droplet based investigations have been performed for hundreds of years. However, in many industrial applications, such as printing, spray cooling and coating etc, numerous droplets will be produced. Droplet train, therefore, is a physical model to approach the complex situation. When the wall temperature is higher than the boiling point, the problem becomes even complex. The subcooling of the droplet, the superheat of the wall also influence the hydrodynamic pattern of the droplet impingement. The hydrodynamic behavior of the water droplet train impinging onto a hot surface (up to 220 °C) is investigated. A droplet train generator is employed to produce stable high velocity (around 6.35 to 19.13 m/s) droplet train (with a diameter around 0.1 mm) at the droplet frequency ranges from 27990 Hz to 55560 Hz. The hot surface is made by copper and heated with cartridge heaters. The effect of wall superheat on flow pattern is experimentally examined and reported. The results show that the wall temperature plays an significant role to the impingement. It influences the spreading speed, stable spreading diameter and splashing angle apparently. |
| Sponsorship | Heat Transfer Division |
| File Format | |
| ISBN | 9780791849651 |
| DOI | 10.1115/MNHMT2016-6436 |
| Volume Number | Volume 1: Micro/Nanofluidics and Lab-on-a-Chip; Nanofluids; Micro/Nanoscale Interfacial Transport Phenomena; Micro/Nanoscale Boiling and Condensation Heat Transfer; Micro/Nanoscale Thermal Radiation; Micro/Nanoscale Energy Devices and Systems |
| Conference Proceedings | ASME 2016 5th International Conference on Micro/Nanoscale Heat and Mass Transfer |
| Language | English |
| Publisher Date | 2016-01-04 |
| Publisher Place | Biopolis, Singapore |
| Access Restriction | Subscribed |
| Subject Keyword | Trains Printing Water Cooling Sprays Generators Coatings Flow (dynamics) Wall temperature Phase transition temperature Subcooling Drops Coating processes Copper |
| Content Type | Text |
| Resource Type | Article |
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