Hydrodynamics of long jet impingement

Abstract

A circular turbulent long jet has been assessed numerically using the volume-of-fluid method to examine the hydrodynamics of a long jet before impingement and to inspect the flow structure of a radial thin layer spreading over a flat plate after impingement. Typical steel mill industrial parameters are used in the model. Comparative results are shown for laminar and turbulent jets with different turbulence models. Model results showed good agreement with the analytical solution available for global parameters and jet behaviour. The film thickness of the water layer over the plate, for more than 27 jet diameter, was measured by tracking free-surface. A hydraulic jump was detected and occurred within the radial zone in different shapes in laminar and turbulent modelling, respectively.

Improving salt tolerance of lowland rice cultivar ‘Rassi’ through marker-aided backcross breeding in West Africa

“…The use of 24 markers on chromosome 1 which were outside the Saltol region was enough to provided adequate information to select introgression lines with minimal donor background. In a similar research, between 7 and 13 markers on chromosome 1 were successfully used to select introgression lines with minimal donor background [33,34]. When we consider map distances between markers as the basis for estimating the extent of allele's introgressed from each of the parent in the ILs, it can be observed that the recurrent parent had the longest distance of 102.2 Mb, while the donor distance was 13.6 Mb ( fig.…”