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Now showing items 1-10 of 26

Re-evaluation of the separation parameters based on the Berman-Olander long-bowl gas-centrifuge solution

Du Toit, C.G.; Mercurio, Giovanni (SAAM, 2014)

The hydrodynamic equations for a long-bowl gas-centrifuge can be simplified to obtain a one-dimensional differential equation for the variation of the non-dimensional axial velocity in the radial direction. This equation ...

Experimental investigation of the effective thermal conductivity in the near-wall region of a packed pebble bed

De Beer, M.; Du Toit, C.G.; Dreyer, H. (SACAM, 2016)

Formulation of a unit cell for a thermal-hydraulic systems model of a prismatic fuel block of a high temperature gas-cooled reactor

Khoza, S.N.; Du Toit, C.G.; Rousseau, P.G. (SACAM, 2016)

A system CFD simulation of the effect of a pressure pulse on the performance of a reactor cavity cooling system of a very high temperature reactor

Du Toit, C.G.; Rousseau, P.G.; Jun, J.S.; Kim, M.W. (SACAM, 2016)

The evaluation of 3D CFD approaches to model the flow and heat transfer inside an unstructured bed of uniform spheres

Potgieter, M.C.; Du Toit, C.G.; Kruger, J.H. (SACAM, 2016)

Simulation of natural convective flow in an experimental reactor cavity cooling system facility

Niemand, P.; Du Toit, C.G.; Tak, N.I.; Kim, M.H. (SAAM, 2016)

A system CFD model of the heat transfer in a prismatic block of a VHTR

Nel, G.J.; Du Toit, C.G. (SAAM, 2018)

The conduction heat transfer through the prismatic blocks containing the fuel elements in a Very High Temperature Reactor (VHTR) is of crucial importance for the proper operation of the reactor under normal operating ...

Modelling of convection heat transfer in the SNU Riser Heat transfer Experimental Facility (RHEF)

Du Toit, C.G.; Shin, D.H.; Park, G.C. (SAAM, 2018)

The Reactor Cavity Cooling System (RCCS) of a High Temperature Gas-cooled Reactor (HGTR) plays an important role in ensuring the integrity of the HTGR during normal operating and accident conditions. The performance of ...

CFD analysis of thermal dispersion in a structured packed bed

Vermaak, H.J.; Du Toit, C.G. (SACAM, 2018)

Packed beds are generally modelled in a partial manner to avoid computational costs. This implies that only a small portion of the representative bed is modelled explicitly in CFD simulations, usually by assuming ...

Simulation of suction recirculation in double suction centrifugal pumps

Van der Walt, J.P.; Kruger, J.-H.; Du Toit, C.G. (SACAM, 2018)

Part-load operation conditions of a centrifugal pump will impose potentially strenuous effects on the operation and reliability of the turbomachine in question due to the risk of suction recirculation. Suction recirculation ...