To analyze the influence of tapered form two upper vertices a rectangular cube placed in channel and impact insertion hollow center obstacle, three-dimensional study was executed using K-ω SST turbulence model. Different models were presented to examine features flow with Reynolds number Re=4×104. The kinetic energy, 2D 3D time-averaged streamlines, trace-lines, streamwise velocity profiles, pr...

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...

In order to measure flow rate in open channels, including irrigation hydraulic structures are used with a relatively high degree of reliance. Venturi flumes among the most common and efficient type, they can discharge using only water level at specific point within converging section an empirical relationship. There have been limited number attempts simulate venturi flume computational fluid dy...

In the present paper, a comparative study of different cylindrical and conical substructures was performed under breaking wave loading with open-source Computational Fluid Dynamics (CFD) package OpenFoam capable development numerical tank (NWT) use Reynolds-Averaged Navier–Stokes (RANS) equations, k-ω Shear Stress Transport (k-ω SST) turbulence model, volume fluid (VOF) method. The validity NWT...

Comparative studies between a toroidal low-temperature plasma and drift-Alfvén-wave simulations were carried out in order to investigate the microscopic structure of turbulence. The dimensionless plasma parameters in the TJ-K torsatron [Krause 2002] are similar to those in the edge of a fusion plasma. At the same time the fluctuations can be fully diagnosed by probe arrays. Fluctuation spectra ...

Transport of angular momentum is one of the thrust areas of astrophysical flows. Instabilities and hence the turbulence generated by it has been invoked to understand its role in angular momentum transport in hydrodynamic and magnetohydrodynamic regime. Investigation of an unexplored region described by the parameter space Ω e < 0, Ωe being the epicyclic frequency, resulted in a powerful magnet...

The present work studied various models for predicting turbulence in the problem of injecting a fluid microjet into boundary layer turbulent flow. For this purpose, one-equation Spalart–Allmaras (SA), two-equation k–ε and k–ω, multi-equation transition k-kL–ω, shear stress transport (SST), Reynolds were used solving steady layer, their results are compared with experimental results. Comparing i...

We show how deterministic Büchi automata can be fully minimised by reduction to the satisfiability (SAT) problem, yielding the first automated method for this task. Size reduction of such ω-automata is an important step in probabilistic model checking as well as synthesis of finite-state systems. Our experiments demonstrate that state-of-theart SAT solvers are capable of solving the resulting s...

Abstract Computational fluid dynamics analysis of a building plan has been investigated with predominant wind velocity for different directions. The flow properties’ variation in the computational domain modeled by solving Reynolds-Averaged Navier–Stokes (RANS) equations finite volume second-order discretization scheme. turbulence airflow distribution and around Shear Stress Transport (SST) k–ω...