Abstract: In this paper, numerical study was conducted on perforated pipes with phasing angle 180 degree and 90 degree respectively. The calculation were carried out with ANSYS FLUENT 15.01 using k-E (RNG) model. It concluded from results there is no change in acceleration and frictional wall pressure betwe...     Read More

Abstract: In this work, we conduct a theoretical analysis of an oscillatory electroosmotic flow in a parallel-plate microchannel taking into account slippage at the microchannel walls. The governing equations given by the Poisson-Boltzmann (with the Debye Huckel approximation) and momentum equations are nondi...     Read More

Abstract: In countries that are suffering from hot weather, a considerable part of energy is dedicated for cooling the buildings due to the absorbed part of the incident short-wave which results in an increase of the surface temperature of the roof.To overcome this problem, a bright (white) surface can be use...     Read More

Abstract: From past up to today motor vehicles use engine waste heat in order to warmup passenger compartment and to provide thermal comfort for the passengers.However,waste heat from the engine is sometimes not enough to provide required heat to the vehicle heating system especially in cold countries. In suc...     Read More

Abstract: Drill and blast method is still most economical and efficient practice for different types of excavation. However, in vicinity of buried transmission pipelines, the vibrations must be held below recommended values. Influence of blast induced ground vibrations on buried pipelines has been described t...     Read More

Abstract: Steady laminar natural convection and heat transfer of nanofluid-filled square cavity heated by trapezoidal solid body is studied numerically using the finite element method. The heat source into the cavity is considered by the bottom wall of the trapezoidal body, where this segment is kept at a hig...     Read More

Abstract: There are a numbers of factors influencing the bedrock deformation caused by shield tunneling.Although many domestic and foreign scholars from the field of geotechnical engineering have conducted theoretical researches on the deformation thereof at the present time,engineering formulas and empirical...     Read More

Abstract: The main objectives of this work were to investigate the effects of the nonlinear behavior of the isolation pads on the seismic response of bridges with rubber bearings, and to identify when base isolation improved their seismic performance. To achieve these objectives a parametric study was conduct...     Read More

Abstract: Flow induced flutter of a thin flexible filament attached to the trailing-edge of a NACA 0015 airfoil was studied experimentally in a low-speed wind tunnel. Hotwire and PIV measurements were carried out to study the nature of the flow field around the airfoil and the filament at different wind speed...     Read More

Abstract: Precipitation and temperature are the two main factors considered in studies related to climate change and impact of global warming. Such studies involve application of results of climate models. US geological survey developed a web site [1] which provides visualization and access to global and regi...     Read More