ridt

RIDT (rapid indoor dispersion tool) is a Python implementation of two different analytical dispersion models, Eddy Diffusion and Well Mixed. It allows the calculation of concentrations and exposures based on an arbitrary set of instantaneous, infinite duration, and fixed duration source terms in a cuboid bounded system. The Well Mixed model is a set of dimensionless exponential decay equations, whereas the Eddy Diffusion model is a variant of the standard solution to the 1D diffusion equation solved with closed boundary conditions, combined in a separable product in three dimensions.

Getting Started

Windows

1. Install Python 3.8.x.

   • The installer can be found here.

   • Once you have installed it to some location path, add both path and path/Scripts to your system path. For instructions of how to add things to your system path, please see here.

   • If you open a Command Prompt or Powershell window and type python -V you should see Python 3.8.x, where x is the subversion of Python 3.8 you downloaded.

   • You should also have access to the Python package manager pip. If you run the command pip, you should see usage instructions appear.

2. Install ridt.

   • If you have pip installed, you can simply run the command pip install ridt to install the latest version of ridt.

Usage

Please refer to the comprehensive user guide.