Breaking waves interaction with two tandem cylinders are numerically studied using Computational Fluid Dynamic (CFD) software OpenFOAM. The effects of transverse inclined angles the downstream cylinder and separation distances between on breaking wave loads free surface elevations investigated. interface air water phases is captured by Volume (VOF) method. Shear Stress Transport k−ω(SSTk−ω) tur...

Abstract The sliding mode control has the property of independence from characteristics unchangeable part automatic stabilization system (ASS). In article, this is proposed to be applied ASS stabilize horizontal working plane using two hydraulic cylinders. A model been developed. paper synthesizes a law for and simulates operation on MATLAB-SIMULINK. simulation results indicate that stable work...

We consider free convection in 2D and 3D horizontal cylindrical layers with the inner hot outer cold boundary at Ra (Rayleigh number) range (4?103 ÷ 4?105) ratio ? ? 1:20 of layer width to radius. Prandtl number was 0,71, fluid properties were taken for air 293 K. It shown that flow a can be divided into three regions. Stable symmetric convective rolls are formed layer’s upper part; regions tra...

A systematic study of the effects of cell geometry on the dynamics of large-scale flows in turbulent thermal convection is carried out in horizontal cylindrical cells of different lengths filled with water. Four different flow modes are identified with increasing aspect ratio Γ . For small aspect ratios (Γ 6 0.16), the flow is highly confined in a thin disc-like cell with a quasi-two-dimensiona...