Design and fluid-structure interaction analysis for a microfluidic T-junction with chemo-responsive hydrogel valves

作     者：E.KHANJANI A.HAJARIAN A.KARGAR-ESTAHBANATY N.ARBABI A.TAHERI M.BAGHANI E.KHANJANI;A.HAJARIAN;A.KARGAR-ESTAHBANATY;N.ARBABI;A.TAHERI;M.BAGHANI

作者机构：School of Mechanical EngineeringCollege of EngineeringUniversity of TehranTehran ***Iran Bourns College of EngineeringUniversity of CaliforniaRiversideCalifornia 92521U.S.A. Department of Mechanical EngineeringUniversity of British ColumbiaOntario V6T 1Z2Canada Department of Mechanical EngineeringUniversity of LarestanLar ***Iran 

出 版 物：《Applied Mathematics and Mechanics(English Edition)》 (应用数学和力学（英文版）)

年 卷 期：2020年第41卷第6期

页      面：939-952页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0703[理学-化学] 0701[理学-数学] 0801[工学-力学（可授工学、理学学位）] 

主　　题：hydrogel pH-sensitive T-junction flow sorter fluid-structure interaction(FSI) micro-valve 

摘      要：Due to the deformation ability even under small loads, hydrogels have been widely used as a type of soft materials in various applications such as actuating and sensing, and have attracted many researchers to study their behaviors. In this paper, the behavior of hydrogel micro-valves with reverse sensitivity to the p H inside a T-junction flow sorter is investigated. With the fluid-structure interaction(FSI) approach, the effects of various parameters such as the inlet pressure and the p H value on the stress and deformation of the micro-valves are examined, and the results with and without FSI,including the flow rate and the closure p H, are compared. In order to reduce the response time of hydrogels, the effects of three different patterns on the performance of the microvalves are explored. Eventually, it is concluded that FSI is a key influential factor in designing and analyzing the behaviors of hydrogels.