設為首頁 | 加入收藏 | ENGLISH
      首頁關于我們科研機構科研團隊科研平臺研究項目人才培養技術轉化招聘公告
      當前位置: 首頁>>科學研究>>系統流變學研究所>>項目>>正文

      Study on the elongated beam moving in viscoelastic fluid

      時間:[2018-01-08]  來源:

      Wenbo Wu, Xuefeng Yuan

      Advanced Institute of Engineering Science for Intelligent Manufacturing, Guangzhou University, 510006, China

      wwb1987wave@gzhu.edu.cn

      The microorganisms and bacteria fill in the humor and blood of the animal. To live and breed, the microorganisms and bacteria have evolved the prefect ability to swim efficiently in the ambient fluid (viscoelastic fluid). To defense the microorganisms and bacteria from hurting the heath of the animal or take advantage of the microorganisms and bacteria to cure some diseases, study on the swimming style of them is of great significance. In this paper, the motion of the elongated beam immersed in viscoelastic fluid, which can model for deformation of most microorganisms, is studied. The elongated beam can move freely (rigid motion is also considered) and deform in the linear elastic range. The fluid is modeled using classical Oldroyd-B constitutive equation. The interaction between the beam and the ambient fluid is modeled using fluid-structure interaction (FSI) method. Specifing the different movement types (undulatory waving motion, rotation pyramidwise and the motion combined waving motion and rotation), this paper has studied the propulsion of the beam and has discuss the propulsive efficiency of different movement type. To evaluate the effect of the viscoelasticity of the fluid on the motion of the beam, same simulations are also implemented in the newtonian fluid.

      下一條:Multiple Scale Simulation of Wetting and Fluid Dynamics over Superhydrophobicity Surface

      彩票联盟