This paper presents a computational study of the flow around DTMB 5415 at \(10^\circ \) static drift. Two RANS (Reynolds Averaged Navier-Stokes) turbulence models, as isotropic k-\(\omega SST and non linear anisotropic EARSM (Explicit Algebraic Reynolds Stress Model) one hybrid RANS-LES model, DES (Detached Eddy Simulation) based on \), are used with solver ISIS-CFD. All numerical results compa...

This report describes the application of the Fluent code to the numerical simulation of the freesurface flow around a model naval ship; the DTMB 5415. Simulations were performed using both a structured hexahedral mesh and an unstructured tetrahedral mesh of lower resolution. The results show that Fluent is able to accurately simulate the total ship resistance, near-field wave shapes, and the ve...

The SCE2£ gene was isolated by complementing a MAla cdc2 6 ura3 strain with a S. cerevisiae wild type genomic library in the vector pFLl (1). The SCD2 6 gene maps in the vicinity of CEC2£ (chromosome 6, right arm) (2) and complements the temperaturesensitive rrir:26 mutation (group H) (3) upon integrative gene duplication. The SCD2 6 gene is not essential for viability and encodes a globular hy...

Monsanto’s Bt-cotton NC 33B, planted in northern China for more than one decade, effectively controls cotton bollworms; however the understanding of its potential effects on soil microorganisms is limited. The dynamics of eubacterial, fungal and actinomycetes population sizes in rhizosphere soil of the Bt cotton were analysed by realtime PCR (qPCR) at the different growth stages under field con...

According to the requirement of high-performance development modern ships, it is necessary quickly and accurately predict maneuverability ships under wave conditions. In this paper, based on CFD (Computational Fluid Dynamics) method in commercial software STAR-CCM+, numerical simulation roll decay motion, pure heel heave pitch motion ship model 5415 carried out. The relevant hydrodynamic deriva...

Hull form optimisation involves challenges such as large design spaces, numerous variables, and high nonlinearity. Therefore, that only use global approximate models alone cannot yield desirable results. An information matrix-based method is proposed for dynamically embedded local (IM-DEAM) in this paper, which uses the Gaussian-function matrix to extract one or more subspaces additional sampli...

Flexible production units provide very efficient mechanisms to adapt the type and production rate according to fluctuations in the demand. The optimal sequence of the different manufacturing tasks in each machine is a challenging problem that can deal with important productivity benefits. In this paper a Coloured Petri Net model of an eyeglass flexible production machine to support the evaluati...