Interaction of non-Newtonian fluids with deformable structures in microscale biological processes

微观生物过程中非牛顿流体与可变形结构的相互作用

• 批准号: 22K14184
• 负责人: VARCHANIS Stylianos
• 金额: $ 1.16万
• 依托单位: Okinawa Institute of Science and Technology Graduate University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Early-Career Scientists
• 财政年份: 2022
• 资助国家: 日本
• 起止时间: 2022-04-01 至 2024-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-22K14184/
• 关键词: Viscoelastic; FSI; Flow instability; Porous media; Microfluidics

In FY2022, we developed the tools and laid the foundations for making the key in-silico experiments. Initially, we developed the algorithm and implemented it in the in-house parallel FE code. We performed strict mesh and time-step refinement convergence tests for VFSI past a single deformable cylinder. We found that the method exhibits second-order accuracy in space and time. We also validated the numerical results with microfluidic experiments of viscoelastic flow past two cantilevered cylinders; semi-quantitative agreement was achieved. All the results are summarized in a manuscript that will be submitted in the journal "Computer Methods in Applied Mechanics and Engineering".

在2022财年，我们开发了工具并为进行关键的硅实验奠定了基础。最初，我们开发了算法并在内部并行有限元代码中实现了它。我们进行了严格的网格和时间步细化收敛测试的VFSI过去一个单一的可变形圆柱体。我们发现该方法在空间和时间上都具有二阶精度。用微流体实验验证了数值结果的正确性；达成了半定量的一致。所有的结果都总结在一份手稿中，将提交给《应用力学与工程中的计算机方法》杂志。

项目成果

Evaluation of constitutive models for shear-banding wormlike micellar solutions in simple and complex flows

• DOI: 10.1016/j.jnnfm.2022.104855
• 发表时间: 2022-07-01
• 期刊: JOURNAL OF NON-NEWTONIAN FLUID MECHANICS
• 影响因子: 3.1
• 作者: Varchanis, Stylianos;Haward, Simon J.;Shen, Amy Q.
• 通讯作者: Shen, Amy Q.

Shear-thinning and shear-thickening effects in the Oldroyd-B model

Oldroyd-B 模型中的剪切稀化和剪切增稠效应

• 发表时间: 2022
• 作者: S Varchanis;J Tsamopoulos;AQ Shen;SJ Haward
• 通讯作者: SJ Haward

A Space-Time Galerkin/Least-Squares Method for the simulation of non-Newtonian fluid flows

模拟非牛顿流体流动的时空伽辽金/最小二乘法

• 发表时间: 2022
• 作者: S Varchanis;SJ Haward;AQ Shen
• 通讯作者: AQ Shen