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Spray Drying Chamber, CFD Simulation Ansys Fluent Software

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In this project, Spray Drying Chamber has been simulated and the results of this simulation have been investigated.

This product includes Geometry & Mesh file and a comprehensive Training Movie.
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Description

Spray Drying Project Description

In this project, which has been done by CFD numerical simulation method with the help of Ansys Fluent software, The spray drying chamber is simulated by the two-way dpm. The particle diameter is 1 mm, and the flow moves at a speed of 1 m/s.

Geometry&Mesh

The 3-D geometry of the present model is carried out using SpaceClaim software. The length of the computational domain is 2.2 m and its height is 3.84m.

Spray Drying

The meshing of this present model has been generated by ANSYS Meshing software. The mesh type is unstructured, and the total cell number is 258311.

Spray Drying

Spray Drying CFD Simulation

To simulate the present model, we consider several assumptions:

  • The solver is pressure-based.
  • The present simulation is unsteady in terms of time.
  • The gravity effect is equivalent to -9.81 m.s-1.

Here is a summary of the steps for defining the problem and its solution in the following table:

Models  
Viscous model K-epsilon realizable  
Discrete phase on  
particle treatment unsteady particle tracking  
material in injection Water_liquid  
particle type in injection droplet  
injection type surface  
Boundary conditions  
Inlet Draying_air Velocity inlet  
velocity magnitude 6 m.s-1  
discrete phase BC type Escape  
  Thermal 468.15k  
  feed Mass_flow_inlet  
  Mass flow rate 0.0116kg/s  
  Thermal 300k  
  discrete phase BC type Escape  
Outlet Pressure outlet  
gauge pressure -150 Pascal  
discrete phase BC type escape  
walls Wall  
wall motion stationary wall  
discrete phase BC type reflect  
Solution Methods  
Pressure-velocity coupling   simple  
Spatial discretization pressure second-order  
momentum second-order upwind  
Modified turbulent viscosity first-order upwind  
 
 
Initialization  
Initialization method   hybrid  

Results

In this simulation, where the spray dryer chamber is simulated, due to the water droplets entering the inlet of the particles, due to the heat transfer, the water droplets evaporate over time, and their diameter becomes smaller, which indicates the function. This enclosure is correct.

You can obtain Geometry & Mesh file and a comprehensive Training Movie that presents how to solve the problem and extract all desired results.

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