Performance of the herringbone wavy fin nder dehumidifying conditions

摘要

An experimental stud reporting the airside performance of the herringbone wavy fin geometry in wet conditions is conducted. In the visualization of the condensate flow pattern, a very special "locally dry" spot of the corrugation wave channel having a corrugation angle of 15° and a fin spacing of 8.4 mm is seen. This phpenomenon is related to the recirculation of the airflow across the apex. Conversely, this phenomenon is not so clearly seen either for a fin pitch of 2.6 mm with a corrugation angle of 15° or a corrugation angle of 25°.