The reliability of computer simulations of physical events or of engineering systems has emerged as the single most critical issue facing advancements in computational engineering and science. Without concrete and quantifiable measures of reliability, the confidence and usefulness of computer predictions are severely limited and the value of computer simulation, in general, is greatly diminishe...

The Study of heat transfer augmentation in micro scale and electronic packaging systems are some of the paramount areas of the impending universe. In such systems the cooling of the heat sinks are generally achieved through the impingement of air jet. Assuming the air jet to be continues & incompressible fluid, the heat dissipation rate over the target surface seems to either uniform or well ch...

The modeling of fresh concrete flow is still very challenging. Nevertheless, it highest relevance to simulate these industrially important materials with sufficient accuracy. Often, assumed show a Bingham-behavior. In numerical simulations, regularization must be used prevent singularities. Two different models, namely the 1) Bi-viscous, and 2) Bingham-Papanastasiou are investigated. Those mode...