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2D LES CFD Solver

Final project for the CFD course (24718) at CMU.

Objectives

  • In our project, we have set out to model the ill effects of having pollution sources in the vicinity of a city. Power plants are a source of constant heat and pollution. While they are designed for maximum thermal efficiency and economy in mind, the long-term health impacts due to pollution should also be taken into account.

  • A 2D transient incompressible Navier-Stokes solver was developed in Python that models energy and scalar transport, incorporating buoyancy effects.

  • 2D CFD parametric studies were performed on vertical positions of pollutant source and building configurations.

  • Our study establishes the need for computational analysis as a tool for policy decisions and regulations for city layouts and power plant locations.

  • We have also augmented our solver to solve for turbulent flows in the form of large eddy simulation (LES) based on the Smagorinsky-Lilly model.

Setup

  • Computational Domain and Boundary Conditions

  • Mesh for the Simulation

Results

  • Flow of pollutant around City

  • Heat flow around City

Installation required!

ruamel.yaml
https://pypi.org/project/ruamel.yaml/

    pip3 install ruamel.yaml
Or
    conda install ruamel.yaml

Steps to Run Solver

  1. Edit config.yml to step up parameters of the simulation.
  2. Simply run the following command to run the simulation.
    python3 main.py

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2D LES CFD Solver

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