in this research, some more applicable ferrofluids are produced and their mechanical specifications are measured, experimentally. also, their treatments in the ventilated cavity geometry are assessed numerically. the magnetite nanoparticles are produced by a chemical combination of fe2+ and fe3+ with nh3. in order to solve the nanoparticles in the new mediums, a proper coating is added to them....

wall-jet flow is an important flow field in hydraulic engineering, and its applications include flow from the bottom outlet of dams and sluice gates. in this paper, the plane turbulent wall jet in shallow tailwater is simulated by solving the reynolds averaged navier-stokes equations using the standard  turbulence closure model. this study aims to explore the ability of a time splitting method ...

A PID controller is introduced into a latent heat thermal energy storage unit to compose coupling system in order control the discharging performance. Outlet temperature of working fluid can be precisely regulated by means its inlet velocity variation based on controller. The theoretical model built through combining transfer with Experimental results are used validate proposed model. analysis ...

Abstract A Reynolds equation governing the steady flow of a fluid through curvilinear, narrow tube, with its derivation from Navier–Stokes equations asymptotic methods is presented. The channel considered may have rather large curvature and torsion. Approximations velocity pressure inside are constructed by artificially imposing appropriate boundary conditions at inlet outlet. justification for...


 In the case of flow over rectangular broad-crested weir, where inflow is realized by approach shaft, occurs influence water surface level velocity. The paper describes numerical model including and outlet shaft. Simulations were created 2D 3D with using three methods turbulent modelling. this a for each setup evaluated then it compared measured values.

Abstract The ceramic microchannel manufactured by stereolithography (SLA) can be used in many engineering cases. SLA is an accurate 3D printing technology, while the small geometry error inevitable. involved flow always non-Newtonian fluids. Therefore, it necessary to analyze Bingham fluids with errors. To conduct numerical simulations, a modified lattice Boltzmann (LB) model presented. Then, g...

Wall-jet flow is an important flow field in hydraulic engineering, and its applications include flow from the bottom outlet of dams and sluice gates. In this paper, the plane turbulent wall jet in shallow tailwater is simulated by solving the Reynolds Averaged Navier-Stokes equations using the standard  turbulence closure model. This study aims to explore the ability of a time splitting method ...

In this research, some more applicable ferrofluids are produced and their mechanical specifications are measured, experimentally. Also, their treatments in the ventilated cavity geometry are assessed numerically. The magnetite nanoparticles are produced by a chemical combination of Fe2+ and Fe3+ with NH3. In order to solve the nanoparticles in the new mediums, a...

In this research, some more applicable ferrofluids are produced and their mechanical specifications are measured, experimentally. Also, their treatments in the ventilated cavity geometry are assessed numerically. The magnetite nanoparticles are produced by a chemical combination of Fe2+ and Fe3+ with NH3. In order to solve the nanoparticles in the new mediums, a...

The diagnosis of thoracic outlet syndrome (TOS) is intrinsically difficult, and the literature about it is full of confusing terminology. Symptoms may arise due to compression of neural and/or vascular elements in one or more of three different locations. A number of tests were developed during the early part of this century, and a variety of syndromes have been described that relate to these t...