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Your search keyword '"Basson, G. R."' showing total 12 results
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12 results on '"Basson, G. R."'

4. Hydro-morphodynamic model with immersed boundary method for local scour at bridge piers.

Author

Vonkeman, J. K., Basson, G. R., and Smit, G. J. F.

Subjects
BRIDGE foundations & piers, NAVIER-Stokes equations, SHEARING force, TURBULENCE
Abstract

Bridge pier scour was simulated by a coupled fully 3D hydro-morphodynamic model and validated against 24 experimental datasets for a combination of different pier shapes, approach velocities and sediment bed material. The proposed numerical model adopts an Eulerian multi-fluid model to account for rolling and saltating particles and computes bed shear stresses from implicit wall functions. ANSYS Fluent solved the continuity and Navier-Stokes equations, closed by the RSM turbulence model, which were coupled with sediment transport submodels by source terms. Numerical instabilities were addressed in the sediment transport submodels which were ascribed to the fine mesh resolution required to resolve the crucial horseshoe vortex and the diffusion resulting from the discretization of the Immersed Boundary method. [ABSTRACT FROM AUTHOR]

Published
2022
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11. Fire and Plastics in Buildings.

Author

NATIONAL BUILDING RESEARCH INST PRETORIA (SOUTH AFRICA), Basson, G. R., NATIONAL BUILDING RESEARCH INST PRETORIA (SOUTH AFRICA), and Basson, G. R.

Abstract

Synthetic polymers, generally known as plastics, are finding an increasing number of uses in buildings. This can increase the fire risk because many of these materials ignite more easily, burn faster and develop more smoke and potentially toxic gases than traditional materials. If potential hazards from their use are to be avoided, the fire properties of some of the commoner plastics must be more widely known to ensure their safe use in buildings.

Published
1982

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