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Investigation Methods of Simulation of Turbulent Flow over High-rise Building by Use of Large-eddy Simulation and Turbulent Modeling with OpenFOAM Software

Moayedi, Hesam | 2015

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 47818 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Kazemzadeh Hannani, Siamak; Nouri Borujerdi, Ali
  7. Abstract:
  8. In this study, the numerical simulation of turbulent flow using Open Source software OpenFOAM, The impact of air flow around the high-rise buildings and classification based on the height and arrangement of the buildings has been against the flow. Numerical method used, the finite volume method uses a piso algorithm, Navier-Stokes equations are solved and the speed and pressure can be obtained. Large Eddy Simulation model is a simulation model used in this software. In general tall buildings against wind loads has three types of move, move along the wind, prependicular along the wind and the twisting motion that occurs at the same time, they are, but, due to the variable nature and unfixed of wind analysis buildings against wind loads difficult. Reason turbulent flow regime is one of the most complex flow patterns through turbulent and intermittent nature, may cause severe impairment in existing buildings, the main focus in this study on the flow pattern to eliminate or reduce it, by design or arrangement is desirable. Also when the wind flow simulation for issues such as urban pollution dispersion or comfort sidewalks used by computational fluid dynamics, a precise simulation of the profiles flow around buildings required. Simulation around the twin buildings and Comfort sidewalk space between the two buildings is of particular importance. Therefore, in this study also investigated the space between two buildings
  9. Keywords:
  10. Turbulent Flow ; High Buildings ; Compressive Force ; Large Eddy Simulation (LES) ; OpenFOAM Software

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