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Numerical Study of Pollutants Distribution in a Residential Complex Having Many High-rise Buildings

Sadat Kiaei, Mohammad | 2023

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 56779 (45)
  4. University: Sharif University of Technology
  5. Department: Aerospace Engineering
  6. Advisor(s): Taeibi Rahni, Mohammad; Salimi, Mohammad Reza
  7. Abstract:
  8. Nowadays, air pollution has become one of the biggest problem of large cities and has numerous negative effects on the environment and people's health. The present research examines how various types of pollutants are distributed in an urban environment, depending on the type of arrangement in different places. Razaviyeh town (including nine 15-story buildings) in the 9th phase of Pardis new city in Tehran has been studied three-dimensionally here. The dimensions of each building in this complex are 12 x 13.5 meters and their height is about 45 meters. Thus, the dimensions of the computational domain used are estimated to be less than 0.02 square kilometers. In this research, computational fluid dynamics (CFD) was used to compute the flow field. For this purpose, a 3D grid was generated first and the flow simulation was conducted using the RANS approach and the standard k-ε turbulence model. After performing the grid resolution study, the results were validated by comparing them with available credential numerical and experimental results. One of the main achievements of this research is acquiring a suitable map for the layout of towers in urban areas from pollution point of view
  9. Keywords:
  10. Air Pollution ; Urban Environment ; Computational Fluid Dynamics (CFD) ; Fluent Software ; Reynolds Average Navier-Stocks (RANS)Method ; Pollutants Dispersion