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Natural Convection In A Shallow Cavity, Jerry Dummond
Natural Convection In A Shallow Cavity, Jerry Dummond
Dr. Jerry E. Drummond
We present numerical solutions of natural convection in a shallow enclosure heated from a side. As a result of hydrodynamic instability transverse cells appear in the flow if the Prandtl number is sufficiently small. Both conducting and insulated top and bottom boundaries were considered. For fluids of small Prandtl number the differences in the flow patterns in these two cases are slight, the strength of the circulation in the cells being somewhat weaker when the boundaries are insulated. This is a result of a more stable flow in this case, caused by the kinetic energy being more vigorously expended in …
Heat Transfer Through A Double Pane Window, S. Korpela, Yee Lee, Jerry Drummond
Heat Transfer Through A Double Pane Window, S. Korpela, Yee Lee, Jerry Drummond
Dr. Jerry E. Drummond
No abstract provided.
Why You Should Not Use 'Hybrid', 'Power-Law' Or Related Exponential Schemes For Convective Modelling—There Are Much Better Alternatives, Brian Leonard, Jerry Drummond
Why You Should Not Use 'Hybrid', 'Power-Law' Or Related Exponential Schemes For Convective Modelling—There Are Much Better Alternatives, Brian Leonard, Jerry Drummond
Dr. Jerry E. Drummond
In many areas of computational fluid dynamics, especially numerical convective heat and mass transfer, the ‘Hybrid’ and ‘Power-Law’ schemes have been widely used for many years. The popularity of these methods for steady-state computations is based on a combination of algorithmic simplicity, fast convergence, and plausible looking results. By contrast, classical (second-order central) methods often involve convergence problems and may lead to obviously unphysical solutions exhibiting spurious numerical oscillations. Hybrid, Power-Law, and the exponential-difference scheme on which they are based give reasonably accurate solutions for steady, quasi-one-dimensional flow (when the grid is aligned with the main flow direction). However, they …