TY  - UNPB
EP  - 191
AV  - public
Y1  - 2025/01/28/
TI  - Fluid-particle interactions in channel flows
N1  - Copyright © The Author 2025. Original content in this thesis is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) Licence (https://creativecommons.org/licenses/by-nc/4.0/).  Any third-party copyright material present remains the property of its respective owner(s) and is licensed under its existing terms.  Access may initially be restricted at the author?s request.
PB  - UCL (University College London)
UR  - https://discovery.ucl.ac.uk/id/eprint/10203826/
ID  - discovery10203826
N2  - This thesis describes a research study on mathematical modelling of solid particle
trajectories in a fluid-filled channel. Inspired by the idea that ice crystal particles
can clog sensors on aircraft wings, the original motivation for the research is to
avoid collisions between particles and channel walls. Therefore most of the twodimensional
solution testing stops at the moment when the particle collides with
the channel wall. The thesis, which combines numerical and analytical work, begins
with investigations of the trajectory of a single particle in a fixed shape channel
within which the oncoming inviscid fluid flow is uniform; here we find sustained oscillations
provide a possible way to keep the particle moving in the channel without
collision. Then we move on to the motion trajectories of a particle in an expanding
or contracting channel subject to various different channel shapes. In the subsequent
chapter we create a multi-particle motion model. Besides the fixed shape model or
the regular shape model, the motion trajectories of a particle in a flexible-walled
channel whose deformation is caused by the pressure effects are also considered
in this thesis. In the final two chapters, the motion trajectories of a particle in a
fluid within flow at low Reynolds number are addressed, followed by the overall
conclusion.
A1  - Liu, Qingsong
M1  - Doctoral
ER  -