Based on RNG k-ε turbulence model and dynamic grid technology, the internal fluid dynamics of splash lubrication three stage planetary gear reducer system is established. The distribution lubricating oil convective heat transfer characteristic in at different input rotational speeds are analyzed. results show that high speed condition, gas mixing volume degree atomization higher, coefficient to...

CCHE3D model is developed at the National Center for Computational Hydroscience and Engineering, The University of Mississippi, for simulating unsteady, free surface, three-dimensional turbulent flows and sediment/pollutant transport and water quality. This model is based on Efficient Element Method, a collocation version of the Galerkin approach. The basic element is a cube with twenty-seven n...

The ANSI X9.17/X9.31 random number generator is a pseudorandom number generator design based on a block cipher and updated using the current time. First standardized in 1985, variants of this PRNG design were incorporated into numerous cryptographic standards over the next three decades. It remained on the list of FIPS 140-1 and 140-2 approved random number generation algorithms until January 2...

The flow fields around single and two combinations of star shape artificial reefs are investigated both numerically and experimentally. The numerical model is based on the Reynolds Navier-Stokes (RANS) equations embedded with a RNG k-ε turbulence model and SIMPEC algorithm. The governing equations are solved by using finite volume method (FVM). Non-invasive particle image velocimetry flow field...

Several two-equation turbulence models using isotropic eddy viscosity and wall functions are assessed by solution of the neutral atmospheric boundary layer over a flat surface and wind flow over twoand three-dimensional models and real terrain. Calculations are presented for wind flow over the Sirhowy Valley in Wales, an embankment along the Rhine in Germany and the Askervein Hill in Scotland. ...

Probabilistic computing using random number generators (RNGs) can leverage the inherent stochasticity of nanodevices for system-level benefits. Device candidates this application need to produce highly “coinflips” while also having tunable biasing coin. The magnetic tunnel junction (MTJ) has been studied as an RNG due its thermally-driven magnetization dynamics, often spin transfer torque (STT)...

Pressure drop characteristics of turbulent flow through 90 degree pipe bends are numerically investigated by computational fluid dynamic simulation using k-ε RNG turbulence model with standard wall function. After the validation of present model against existing experimental results, a detailed study has been performed to investigate the pressure distribution and pressure drop characteristics o...

A comparative performance analysis of the CFD platforms OpenFOAM and FLOW-3D is presented, focusing on a 3D swirling turbulent flow: a steady hydraulic jump at low Reynolds number. Turbulence is treated using RANS approach RNG k-ε. A Volume Of Fluid (VOF) method is used to track the airewater interface, consequently aeration is modeled using an EulerianeEulerian approach. Structured meshes of c...