Outputs (16)

Numerical modelling of the rise of Taylor bubbles through a change in pipe diameter (2017)
Journal Article
Ambrose, S., Lowndes, I. S., Hargreaves, D., & Azzopardi, B. (2017). Numerical modelling of the rise of Taylor bubbles through a change in pipe diameter. Computers and Fluids, 148, https://doi.org/10.1016/j.compfluid.2017.01.023

The rise of Taylor bubbles through expansions in vertical pipes is modelled using Computational Fluid Dynamics. The predictions from the models are compared against existing experimental work and show good agreement, both quantitatively and qualitati... Read More about Numerical modelling of the rise of Taylor bubbles through a change in pipe diameter.

Improving the rheometry of rubberized bitumen: experimental and computation fluid dynamics studies (2017)
Journal Article
Lo Presti, D., Giancontieri, G., & Hargreaves, D. M. (2017). Improving the rheometry of rubberized bitumen: experimental and computation fluid dynamics studies. Construction and Building Materials, 136, 286-297. https://doi.org/10.1016/j.conbuildmat.2016.12.200

© 2017 Multi-phase materials are common in several fields of engineering and rheological measurements are intensively adopted for their development and quality control. Unfortunately, due to the complexity of these materials, accurate measurements ca... Read More about Improving the rheometry of rubberized bitumen: experimental and computation fluid dynamics studies.

Numerical modeling of oscillating Taylor bubbles (2016)
Journal Article
Ambrose, S., Hargreaves, D. M., & Lowndes, I. (2016). Numerical modeling of oscillating Taylor bubbles. Engineering Applications of Computational Fluid Mechanics, 10(1), 578-598. https://doi.org/10.1080/19942060.2016.1224737

© 2016 The Author(s). In this study, computational fluid dynamics (CFD) modeling is used to simulate Taylor bubbles rising in vertical pipes. Experiments indicate that in large diameter (0.29 m) pipes for an air-water system, the bubbles can rise in... Read More about Numerical modeling of oscillating Taylor bubbles.

On the applicability of 2D URANS and SST k-ω turbulence model to the fluid-structure interaction of rectangular cylinders (2015)
Journal Article
Nieto, F., Hargreaves, D., Owen, J. S., & Hernández, S. (in press). On the applicability of 2D URANS and SST k-ω turbulence model to the fluid-structure interaction of rectangular cylinders. Engineering Applications of Computational Fluid Mechanics, 9(1), https://doi.org/10.1080/19942060.2015.1004817

In this work the practical applicability of a 2D URANS approach adopting a block structured mesh and Menter's SST k-ω turbulence model in fluid-structure interaction (FSI) problems is studied using as a test case a ratio B/H = 4 rectangular cylinder.... Read More about On the applicability of 2D URANS and SST k-ω turbulence model to the fluid-structure interaction of rectangular cylinders.

Bridge deck flutter derivatives: efficient numerical evaluation exploiting their interdependence (2014)
Journal Article
Nieto, F., Owen, J., Hargreaves, D., & Hernández, S. (2015). Bridge deck flutter derivatives: efficient numerical evaluation exploiting their interdependence. Journal of Wind Engineering and Industrial Aerodynamics, 136, https://doi.org/10.1016/j.jweia.2014.11.006

Increasing the efficiency in the process to numerically compute the flutter derivatives of bridge deck sections is desirable to advance the application of CFD based aerodynamic design in industrial projects. In this article, a 2D unsteady Reynolds-av... Read More about Bridge deck flutter derivatives: efficient numerical evaluation exploiting their interdependence.

The computational fluid dynamics modelling of the autorotation of square, flat plates (2014)
Journal Article
Hargreaves, D., Kakimpa, B., & Owen, J. S. (2014). The computational fluid dynamics modelling of the autorotation of square, flat plates. Journal of Fluids and Structures, 46, https://doi.org/10.1016/j.jfluidstructs.2013.12.006

This paper examines the use of a coupled Computational Fluid Dynamics (CFD) – Rigid Body Dynamics (RBD) model to study the fixed-axis autorotation of a square flat plate. The calibration of the model against existing wind tunnel data is described. Du... Read More about The computational fluid dynamics modelling of the autorotation of square, flat plates.