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Modelling of turbulent heat transfer to fluid at supercritical pressure using adaptive mesh generation

Shuisheng He
School of Engineering The Robert Gordon University Schoolhill, Aberdeen, AB10 1FR, UK; Department of Mechanical Engineering University of Sheffield Sheffield, UK, S1 3JD

Won-Seok Kim
School of Engineering The Robert Gordon University Schoolhill, Aberdeen, AB10 1FR, UK

John Derek Jackson
School of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester M1 3 9PL, UK

Abstrakt

A solution adaptive local mesh refinement method has been developed within a structured grid system for mixed convective heat transfer to fluids at supercritical pressure which has very significant localised distortions due to strong variation of properties. The adaptive mesh refinement method developed was able to achieve a solution accuracy better than one achieved using a very fine fixed-mesh grid but with only a small fraction of the CPU time. This paper describes the key strategies employed in the method developed. Simulations of experiments are presented and discussed.