Advanced Flow Modelling CFD Group Assignment-2 Objectives: To model and investigate using Computational Fluid Dynamics, the airflow and particle transport in a bifurcating domain. Apparatus: ANSYS Fluent will be used as currently available at UTS. Problem: The overall dimensions of the model; Fig 1: Schematic of the computational domain. (Use any length and angle for your design. Make sure you have the mentioned dimension for the inlets and outlets). The fluid flowing through the domain is air, with the following properties at 20 C: Air Density, r = 1.2 kg/m3 Dynamic viscosity, m = 1.81 x 10-5 Pa.s Particle Size: 1 nm (Inlet 1), 2.56 m (Inlet 2) and 5.56- m (Inlet 3) Particle Density: 1000 kg/m3 Particle Shape: Spherical/Non-Spherical (Any Shape) The boundary conditions for all the CFD models are: Inlet Flow Rate = 7.5 lpm, 15 lpm and 60 lpm Outlet Pressure = Zero Pressure or Outflow outlet Wall Boundary Condition = Reflect, Stationary Wall Velocity at walls = 0 m/s (no slip) Flow = Turbulent Note: Particles will be injected through the inlet surface and all particles will be injected at once. Procedure and discussion points: 1. Create the computational geometry in DesignModeler/ Solidwroks/any CAD software with the mentioned dimensions. 2. Build an appropriate mesh for the model. This will necessitate to run the simulations and make a grid refinement study presenting the results for different grids for 60 lpm flow rate. 3. Using the converged grid, check the