The role of bottom friction and the fluid layer depth in numerical simulations and experiments of freely decaying quasi-two-dimensional turbulence in shallow fluid layers has been investigated. In particular, the power-law behavior of the compensated kinetic energy E0(t)=E(t)e(2lambda t), with E(t) the total kinetic energy of the flow and lambda the bottom-drag coefficient, and the compensated ...

The research work presented in this paper aims to optimize the dynamic response of a carbon-epoxy plate by including into laminate one frequency-dependent interleaved viscoelastic layer. To keep an acceptable bending stiffness, some holes are created layer, thus facilitating resin through layer penetration during co-curing manufacturing process. Plates (or not) perforated non-perforated) manufa...

background: according to literature, there are differences among different species of animals in respect to absorption of d-xylose. objectives: in two experiments, the differences that might exist in absorptive capacity of small intestine for d-xylose, in different types of chicken were tested. methods: in experiment one, 2 groups of nine adult layer type males (48 weeks) and females (58 weeks)...

Recently performed linear stability analyses suggested that transition could be delayed in hypersonic boundary layers by using an ultrasonically absorptive surface to damp the second mode (Mack mode). Boundary-layer transition experiments were performed on a sharp 5.06-deg half-angle round cone at zero angle of attack in the T5 Hypervelocity Shock Tunnel to test this concept. The cone was const...