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Static Contact Angle and Large Water Droplet Thickness Measurements with the Change of Water Temperature | ||
| ALNAHRAIN JOURNAL FOR ENGINEERING SCIENCES | ||
| Article 1, Volume 17, Issue 1, 2014, Pages 114-128 | ||
| Author | ||
| Majid H. Majeed | ||
| Abstract | ||
| The sessile droplet method is used to determine the contact angle and the thickness of a large droplet of water (puddle), and the contact angle of a growing droplet experimentally. The measurements are done as the water temperature is varied within the range of 0-90 Co. Five kinds of substrates are used (iron, copper, aluminum, glass and brass) in the present work. It is found that as the temperature of the water increased both the contact angle values and puddle thickness values are decreased. Also it is shown that the contact angle is starting from 90o for very small droplets to a steady value as the droplet increases in size. A curve fitting is done to obtain correlationsfor the variation of contact angle with water temperature values. | ||
| Keywords | ||
| Contact angle; Puddle thickness; Sessile droplet | ||
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