Particle Flow Inside the Elbow, CFD Simulation Using DPM
$65.00 $12.00
In this project, the airflow containing micro-particles inside an elbow is simulated.
This ANSYS Fluent project includes Mesh file and a Training Movie.
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Description
Particle Flow in an Elbow Project description
One of the most widely used multiphase analyses is the Discrete Phase Model (DPM) analysis, which is widely used to investigate the effect of fine matter mixtures in the main fluid flow on its conditions. Considering the various cases of fluid streams with particles that are seen in the industry as well as nature, the study and analysis of such flows can be a great help in understanding such issues. In this project, the airflow containing micro-particles inside an elbow is simulated. Air enters the pipe with a velocity of 17 m/s and carries particles until it reaches an elbow, most of the particles will collide with the outer elbow surface and gradually erode the inner surface of the pipe. The standard k-epsilon model is exploited for solving the turbulent fluid flow equation.
Elbow Geometry and mesh
The geometry of this model is designed in ANSYS design modeler®. It is meshed in ANSYS meshing®. The mesh type used for this geometry is unstructured. The total element number is 2832.
Particle Flow CFD simulation settings
The key assumptions considered in this project are:
- Simulation is done using pressure-based solver.
- The present simulation and its results are steady.
- The effect of gravity is neglected.
The applied settings are summarized in the following table.
Models | ||
Viscous model | k-epsilon | |
Model | Standard | |
Wall treatment | Standard wall functions | |
Discrete phase | on | |
Interaction with continuous phase | ||
Particle type | inert | |
X-velocity | 4 m/s | |
Diameter | 0.003741 m | |
Boundary conditions | ||
Inlets | Velocity inlet | |
Velocity magnitude | 17 m/s | |
DP BC type | escape | |
Outlets | Pressure outlet | |
Gauge pressure | 0 Pa | |
Walls | stationary | |
BC Type | reflect | |
Solution Methods | ||
Pressure-velocity coupling | SIMPLE | |
Spatial discretization | pressure | Second order |
momentum | second order upwind | |
Turbulent kinetic energy | first order upwind | |
Turbulent dissipation rate | first order upwind | |
Initialization | ||
Initialization method | Standard | |
gauge pressure | 0 Pa | |
velocity (x,y) | (17,0) m/s | |
Turbulent kinetic energy | 1.08375 m2/s2 | |
Turbulent dissipation rate | 723.6514 m2/s3 |
Results
As can be observed in DPM concentration contour and particle tracks, the particle will collide with the inner surface of the elbow and will cause erosion in the long run.
Mesh file is available in this product. By the way, the Training File presents how to solve the problem and extract all desired results.
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