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Since direct numerical simulations of buoyancy driven flows cannot be computed at high Rayleigh numbers, a dynamically less complex mathematical formulation is sought. In the quest for such a… (More)

Large-eddy simulation (LES) seeks to predict the dynamics of spatially filtered turbulent flows. By construction, the LES solution contains only scales of size ≥ ∆, where ∆ denotes some user-chosen… (More)

Direct Numerical Simulation (DNS) is the most accurate, but also the most expensive, way of computing turbulent flow. To cut the costs of DNS we consider a family of second-order, explicit one-leg… (More)

In this paper, a number of methods are described that enable a more accurate and more e cient computation of the viscous ow e ects with the CFD tool ComFLOW. The intended application area is the o… (More)

We propose to perform turbulent flow simulations in such manner that the difference operators do have the same symmetry properties as the corresponding differential operators. That is, the convective… (More)

- M. J. Geudeke, R. W. C. P. Verstappen, Martin J. M. Tielen, Wil A. Hunneman, L Paridaans, H P de Greef
- Tijdschrift voor diergeneeskunde
- 1991

As part of a research project concerned with the monitoring of health problems in sows, the practicability of post-mortem urinalysis of sows during slaughter was studied to determine the extent to… (More)

The incompressible Navier-Stokes equations constitute an excellent mathematical modelization of turbulence. Unfortunately, attempts at performing direct simulations are limited to relatively… (More)