[Truncated] The current trend in pipeline research is dominated by two approaches: experimental and numerical modelling. Recent advancement in computer technology has enabled more complicated engineering problems be modelled on a personal computer. Hence, the principal aim of this research is to investigate the issues regarding the numerical modelling of an oscillating flow around a fixed circular cylinder. These include a domain size study and a grid dependence study for two-dimensional modelling and a detailed comparison between the two-dimensional modelling and three dimensional modelling of the flow. The current study has compared and verified the two-dimensional and three dimensional models with experimental results. A few typical quantities were used for the comparison and verification, such as force coefficients, vorticity and pressure around the cylinder. Due to the length of candidature, for the two-dimensional model, only five Keulegan-Carpenter number (KC) cases were studied, KC=5, 9, 14, 17 and 25. For three-dimensional, only KC=9 and 17 were studied.
|Publication status||Unpublished - 2002|