In this study, the interaction of fluid-structure with Ansys Fluent and Structural was analysed on a double-wall LNG piping system in a marine ship. In terms of simulations, the inner tube of the double-walled tube on the TSR-18008 ship designed by SU Ar-Ge Dizayn ve Mühendislik A.Ş. is considered. Two different simulations were made; the first analysis was a computational fluid dynamics analysis and the results obtained from this were imported into the finite element analysis also known as structural analysis and the structural analysis was undertaken together using these data. The mesh used in the simulations has 2,985,116 elements and 2,135,093 nodes. The inlet velocity of the gas is 6.5 m/s and the temperature value is 108 K as boundary conditions. Seventeen cylindrical support elements are used to ensure the strength of the Liquefied Natural Gas pipe system. Three different pipe materials, which are structural steel, stainless steel, and aluminium alloy, have been considered for the numerical structural analysis. The highest stresses were observed at the elbows and results were given using various contours including stresses, strains, temperatures and streamlines in these elbows.

 Using Ansys version 15.0, three-dimensional simulations of NACA 0009 aerofoil has been carried out.  Four different angles of attack were used at the constant Reynolds Number and aerodynamic performance was measured in the light of the data received.  In the analysis in addition to the lift coefficient, drag coefficient and L/D ratios, velocity profiles and streamlines are visualised in order to explain the events taking place.

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Performing a computational fluid dynamics (CFD) analysis of a settlement can present many parameters such as determining the wind load, predicting the temperature distribution, determining the turbulence formations about how that settlement should be located, to the scientists in the architectural and engineering departments. In this study, a CFD analysis has been done using a commercial analysis program “Ansys Fluent” and the geometry has been created using an architectural program known as “SketchUp”. Istanbul Health and Technology University Merter Campus buildings have been taken as the reference models. Streamlines, velocity, pressure, temperature and turbulence kinetic energy distribution contours have been projected. The highest flow velocities and turbulence density were observed between the campus buildings, and when the temperature distributions were examined, dramatic decreases were found in the building temperatures on the windward facade. The maximum wind loads, temperature distributions and so on have been detected and according to the results, recommendations have been made.