In this paper the thermal behavior of the shell-side flow of a shell-and-tufe heat exchanger has been studied using theoretical and experimental methods. The experimental method Provided the effect of the major parameters of the shell-side flow on thermal energy exchange. In the numerical method, besides the effect of the major paramerers, the effect of different geometric parameters and Re on ...

In this paper, a series of numerical experiments are carried out on the anti-scour device combined with perforated baffle and ring-wing plate. addition, optimal dimensions location obtained: The ratio is S = 20%, distance from center bridge pier L 2d (d diameter pier), plate located at H 1/3h (h water depth). To verify effect device, scour characteristics flow field further investigated. Compar...

Oscillating buoy device, also known as point absorber, is an important wave energy converter (WEC) for development and utilization. The previous work primarily focused on the optimization of mechanical design, buoy’s array configuration site selection with larger density in order to improve generation performance. In this work, enlightened by potential availability Bragg reflection induced mult...

Liquid sloshing is a common phenomenon in ocean engineering, and one which not only affects the stability of ship navigation, but also poses threat to both marine environment human life. Ascertaining how best reduce amplitude liquid has always been key problem engineering. In this study, based on an improved moving-particle semi-implicit method, BM-MPS damping effect vertical slotted screen und...

The integrating sphere is used in photometry to h.measure total luminous flux. In a sphere with a diffusely reflecting coating, the illuminance by reflected > light is approximately the same at all points on the sphere surface and is proportional to the total flux emitted by the lamp. This reflected light is measured at a point on the sphere surface which is shielded from the direct rays of the...

The computational fluid dynamics (CFD) technology is analyzed and calculated utilizing the turbulence model multiphase flow to explore performance of internal circulating fluidized beds (ICFB) based on CFD. three-dimensional simulation method can study hydrodynamic properties ICFB, bed optimized. fluidization ICFB improved through experimental cross-shaped baffle. Then, baffle funnel-shaped pla...

In this article, mixed convection heat transfer of alumina-water nanofluid in an inclined and baffled C-shape enclosure is studied. It is assumed that the flow is laminar and steady. There is no energy production, energy storage and viscous heat dissipation. Furthermore, the nanofluid is considered as a continuous, Newtonian and incompressible fluid. Governing equations are discretized by finit...

The flow in a double-suction twin-volute five-stage centrifugal pump is studied numerically using Computational Fluid Dynamics (CFD) calculations. performance at various rates obtained are compared with the theoretically results. deterioration were investigated to find losses associated design of components. stage-wise analysis revealed hydraulic second-stage impeller due highly swirled exiting...