TY - JOUR T1 - The Effect of the Dynamic Contact Angle on Pool Boiling Heat Transfer Coefficient in Pure Liquid in Contact with Roughens Aluminum Heater AU - Bovard, Samaneh AU - Asadinia, Hoda AU - Hosseini, Goharshad JO - Journal of Engineering and Applied Sciences VL - 11 IS - 4 SP - 837 EP - 842 PY - 2016 DA - 2001/08/19 SN - 1816-949x DO - jeasci.2016.837.842 UR - https://makhillpublications.co/view-article.php?doi=jeasci.2016.837.842 KW - Pool boiling KW -heat transfer coefficient KW -roughness KW -contact angle KW -new model KW -genetic algorithm KW -dimensionless number AB - In this investigation, nucleate boiling heat transfer coefficients and dynamic contact angle were experimentally measured during pool boiling of water on a horizontal heating rod in heat flux range between 1-120 kW m–2 under atmospheric pressure. Experiments were performed at several degrees of surface roughness ranging between 3 and 43 μm average vertical deviation. The results showed that dynamic contact angle is increased with increased heat flux and surface roughness. A new model is proposed to predict Stanton dimensionless number by employing dimensional analysis. This model has <2% absolute error. ER -