親水・疎水コーティングによる流体制御法の開発(乱流現象の制御(2),一般講演)

概要

論文の詳細を見る
A chemical flow control method using a combination of hydrophilic and hydrophobic coatings is discussed. A passive flow control of this method is shown by applying these coatings separately on a control surface. Drop tests of an ogive shape model in water tower show that combinations of hydrophilic and hydrophobic coatings vary the drag coefficient, indicating the ability to control the speed. The coating area of hydrophilic or hydrophobic coating is more effective than the coating location for passive control in a laminar flow conditions tested. As an active flow control, a temperature-sensitive amphiphilic polymer is shown. This polymer is hydrophobic over the critical temperature of 32℃, while it is hydrophilic below the critical temperature.
日本流体力学会の論文
2007-08-06