student profile: Mr Kris Ke


Thesis work

Thesis title: Direct numerical simulation for an unsteady natural convection boundary layer

Supervisors: Nicholas WILLIAMSON , Steven ARMFIELD

Thesis abstract:

Natural convection flow is one of the most common flow in many heat transfer applications and thus has long been a subject of extensive research. It is desirable to have the capability of accurate prediction and control of the flow in applications. However, the fundamental knowledge of laminar-turbulent transition of natural convection flows is not fully understood at this stage.
This research aims at filling this gap by looking at the temporal flow behaviour when the fluid (air) is suddenly heated by a hot wall. This study of a temporal developing flow is of critical importance, in particular to those unsteady, start up flows subjected to high heat flux, such as the emergency cooling process in a nuclear plant.

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