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VGU RESEARCH REPOSITORY


Please use this identifier to cite or link to this item: https://epub.vgu.edu.vn/handle/dlibvgu/2179
Title: Turbulent flow over a partially buried cylinder with newtonian and non-newtonian fluids
Authors: Thang Do Hoang 
Keywords: Turbulent flow;Partially buried cylinder;Non-Newtonian fluid
Issue Date: 2024
Abstract: 
Fluid dynamics around the seabed is a complex and challenging subject. The interaction between seabed fluids and objects operating in the deep sea is vital for many industries. One typical example is submarine pipelines used for the transportation of oil and gas. Vortical flow caused by turbulence can lead to hydrodynamic scour, a phenomenon that may threaten pipeline safety.

The interaction between submarine pipelines and seabed fluids is often simplified as the problem of a cylinder placed near, laid on, or buried under a plane wall. Most previous studies assume that the fluid environment is water, which belongs to the class of Newtonian fluids. However, this assumption may not be accurate, since in real conditions, fluids around the seabed can exhibit rheological behaviours such as viscoplasticity, viscoelasticity, and thixotropy. These fluids are classified as non-Newtonian fluids. Investigating how non-Newtonian seabed fluids interact with objects, such as cylinders, can provide new insights into fluid behaviour and its influence on forces acting on structures, such as drag and lift.
URI(1): https://epub.vgu.edu.vn/handle/dlibvgu/2179
Rights: Attribution-NonCommercial 4.0 International
Appears in Collections:Computational Engineering (CompEng)

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