Series Solution and Its Extension for the Nonlinear Flow Response of Soft Hair Beds DOI Open Access
Bohua Sun, Bo Pang, Meng Li

et al.

Published: Aug. 6, 2024

In nature and engineering applications, flexible fiber beds covering biological surfaces can play a role in reducing resistance. These fibers deform under the action of fluids, this deformation affects fluid flow state, forming complex fluid-solid interaction phenomenon. To quantitatively analyze such issues, physical model is simplified to problem an soft hair bed caused by Stokes flow, single further studied. The elastic channel be described nonlinear integral equation. We have obtained new series solution, which has been compared with previous perturbation method verify accuracy effectiveness solution. Meanwhile, we provided extended form through experimental fitting. This involves multiple fields very important many natural systems. research paper not only help us better understand phenomena but also delve into mechanism between fluids solids, providing theoretical basis for future scientific applications.

Language: Английский

Nonlinear flow response of flexible fibers driven by Stokes flow DOI

B. Pang,

Bohua Sun

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(2)

Published: Feb. 1, 2025

The fuzzy, flexible fibers attached to biological surfaces not only reduce drag but also undergo nonlinear deformation under shear flow, and the of these in turn affects fluid flow. This phenomenon is increasingly attracting attention. Due complexity fluid–structure interaction problems, existing analytical solutions such as perturbation methods, integral solutions, series expansions are still unable fully address this issue. To tackle problem, paper uses COMSOL finite element software for numerical calculations, effectively simulating between results show that method matches experimental data within a certain velocity range, extending scope previous studies confirming −1/2 scaling law at higher velocities. Furthermore, study explores bending elastic flow field different loads. provides new approach using simulations model fibers, along with visual analysis, which applicable similar problems can provide valuable insights future scientific research engineering applications.

Language: Английский

Citations

0
Drift of elastic hinges in quasi-two-dimensional oscillating shear flows DOI
James V. Roggeveen, Howard A. Stone

Physical Review Fluids, Journal Year: 2025, Volume and Issue: 10(3)

Published: March 6, 2025

Language: Английский

Citations

0
Near-field hydrodynamic interactions determine travelling wave directions of collectively beating cilia DOI
Ziqi Cheng, Andrej Vilfan, Yanting Wang

et al.

Journal of The Royal Society Interface, Journal Year: 2024, Volume and Issue: 21(217)

Published: Aug. 1, 2024

Cilia can beat collectively in the form of a metachronal wave, and we investigate how near-field hydrodynamic interactions between cilia influence collective response beating cilia. Based on theoretical framework developed work Meng et al . (Meng 2021 Proc. Natl Acad. Sci. USA 118 , e2102828118), find that first harmonic mode driving force acting each individual cilium determine direction wave after considering finite size trajectories, which is confirmed by our agent-based numerical simulations. The stable patterns, e.g. travelling direction, be controlled forces cilia, based one change flow field generated This not only help to understand role behaviours but also guide future designs artificial desired dynamic mode.

Language: Английский

Citations

2
Series solution and its extension for the nonlinear flow response of soft hair beds DOI
Bohua Sun,

B. Pang,

Meng Li

et al.

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(9)

Published: Sept. 1, 2024

In nature and engineering applications, flexible fiber beds covering biological surfaces can play a role in reducing resistance. These fibers deform under the action of fluids, this deformation affects fluid flow state, forming complex fluid–solid interaction phenomenon. To quantitatively analyze these issues, physical model is simplified. We focus on soft hair bed caused by Stokes flow. Additionally, we study single greater detail. The problem an elastic channel be described nonlinear integral equation. have obtained new series solution, which has been compared with previous perturbation method to verify accuracy effectiveness solution. Meanwhile, further provided extended form through experimental fitting. This involves multiple fields very important many natural systems. research paper not only help us better understand phenomena but also delve into mechanism between fluids solids, providing theoretical basis for future scientific applications.

Language: Английский

Citations

2
Series Solution and Its Extension for the Nonlinear Flow Response of Soft Hair Beds DOI Open Access
Bohua Sun, Bo Pang, Meng Li

et al.

Published: Aug. 6, 2024

In nature and engineering applications, flexible fiber beds covering biological surfaces can play a role in reducing resistance. These fibers deform under the action of fluids, this deformation affects fluid flow state, forming complex fluid-solid interaction phenomenon. To quantitatively analyze such issues, physical model is simplified to problem an soft hair bed caused by Stokes flow, single further studied. The elastic channel be described nonlinear integral equation. We have obtained new series solution, which has been compared with previous perturbation method verify accuracy effectiveness solution. Meanwhile, we provided extended form through experimental fitting. This involves multiple fields very important many natural systems. research paper not only help us better understand phenomena but also delve into mechanism between fluids solids, providing theoretical basis for future scientific applications.

Language: Английский

Citations

0