Single and Double Drop Impingement on a Heated Plate CFD and Experimental Investigation
Journal Title: Engineering and Technology Journal - Year 2021, Vol 6, Issue 4
Abstract
A drop impingement on a hot surface is known as an effective way for heat removal. The present work uses a VOF (volume of fluid) model to simulate the flow behavior and temperature distribution on a 50 °C heated plate while relatively cold water drop is impinging. The temperature distribution at the impingement zone is used to examine the transient heat transfer coefficients using a single drop and double drops conditions. The spreading factor is tested in both cases. A test rig is built to verify the temperature distribution and a heat balance method is introduced to find the experimental heat coefficients on the heated. The CFD solution and its flow results gives a good agreement for single drop previous results. The results for the double drop condition show a high tendency for rebound and splash of the drop leaving the central zone without water drop coverage which way causes a burn out in case of high heat fluxes. The single drop condition show a symmetrical temperature and heat transfer coefficients distribution while the double drop impingement gives lower value of coefficients with non-uniform and unsymmetrical distribution specially at the bigger drop to plate distances. The experimental average heat coefficients gives relatively low error of only 5% in case of double drop when compared to the single drop values.
Authors and Affiliations
Ruaa Basim Alobaidy , Dr. Adnan A. A Rasool
Keywords
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- EP ID EP698279
- DOI 10.47191/etj/v6i4.04
- Views 70
- Downloads 0
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