Thermal jet flows are the type of flow frequently encountered in engineering applications. This article aims to determine if SST k-ω turbulence model, including Low-Reynold Correction, accurately estimates Nusselt number impinging flow; because this, computational results were compared with experimental studies. comparison was made on a line (r/D) from stagnation point exit. In this article, he...

Current research investigating ice-covered bridge pier scour has focused on the effects of fully developed ice jams. However, based observations at various stages development, covers are not always developed. This experiment investigated a simulated floating jam’s with constant flow rate. Various channel-spanning cover lengths were tested, along one circular localized cover, and resulting was c...

The possibility of decreasing the drag coefficient slotted airfoil is investigated at Reynold number 1.6 x106 for angles attack were ranged from 0°to 20°. For this purpose, edges simple slot had been made with curve edges. numerical study was evaluated by using ANSYS fluent 21.0 κ-ω SST turbulence to solve fully turbulent Navier-stocks equations. location and dimensions adopted previous conside...

The physical and aerodynamic properties of black white sesame were determined at Moisture Content(MC%) range 8.5 – 30.6%(d.b).The major, minor, intermediate, arithmetic mean, geometric mean diameters sphericity, projected area the two varieties 2.96 3.94mm, 1.47 -2.40mm,0.54 -1.26mm,1.66 2.50mm, 0.78 - 3.66mm 26.53 93.45, 1.91 42.08mm2 respectively.The increase in MC resulted decrease true dens...

Abstract In recent years, Computational Fluid Dynamics (CFD) is increasingly becoming more attractive for the analysis of ship seakeeping. This because increasing efficiency computers and accuracy solvers (e.g. Reynold Navier Stokes Averaged – RANS) that may be accurate in terms idealizing nonlinear phenomena comparison to potential flow methods. Notwithstanding this, RANS methods remain sensit...

Effects of flexible membrane mounted over suction surface NACA 4412 airfoil were experimentally investigated at Reynolds number 5x104 and low aspect ratio (AR=1) in this paper. The smoke-wire visualization method has been performed for flow to demonstrate phenomena as laminar separation bubble (LSB), leading edge z/c=0.4 tip vortices z/c=0.1. Values velocity, stress turbulence statistics measur...

For micro air vehicles (MAV), the precise prediction of aerodynamic force plays an important role. The a comparative low Reynold number (Re) vehicle tends to be affected by different flow modes. In this paper, performance three-dimensional NACA0012 airfoil is studied numerically. A range angles attack ( α) 0°−25° and Reynolds 1000 considered. Mean fluctuating coefficients forces around are anal...

Abstract The hydrodynamic interactions between an offshore platform and surrounding water mainly occurs in way of the pile legs, flow past legs can be simplified to columns. This is reason why it great significance simulate around multiple columns with accuracy. In this paper, based on a mesh-less method, Moving Particle Semi-implicit (MPS) MLParticle-SJTU solver used two parallel square Firstl...

The surface structure of soccer balls, such as the number and shapes ball panels, has recently changed, research on aerodynamics flight trajectories new balls is actively proceeding. However, these studies are focused whereas used were never studied. In this study, aerodynamic characteristics kicked 1000 times by a robot investigated through wind tunnel tests. results compared with those obtain...