Sludge Flow Settling in a Pipe, Ansys Fluent Training
In this project, Sludge Flow Settling in a Pipe 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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Sludge Flow Project Description
The goal of this project is to simulate sludge flow settling in a pipe by Ansys Fluent software. The Eulerian VOF model has been used. The water is entering the domain with the speed of 0.01 m/s with gravity considered -9.81 m/s-2 on the y-axis.
Geometry & Mesh
The 2-D geometry of the present model is carried out using Design Modeler software. The geometry consists two-section, the lower section is resident water, and the upper section contains outlet and velocity inlet; tank sides are considering as well.
The meshing of this present model has been generated by Ansys Meshing software. The mesh grid is unstructured with no element quality lower than 0.52, and the total cell number is 390742.
To simulate the present model, several assumptions are considered, which are:
- The solver is pressure-based.
- Simulation has only examined fluid behavior; in other words, heat transfer simulation has not been performed.
- The effect of gravity on the flow is considered to be 9.81 m.s-2 and along with the y-axis in the present model.
The following is a summary of the steps for defining the problem and its solution.
|shear flow corrections||k-omega options|
|0||initial gauge pressure||Mixture|
|0.01 m/s||velocity magnitude||sludge|
|1||backflow volume fraction||sludge|
|0||backflow volume fraction||Water|
|stationary wall||wall motion|
|Phase coupled||pressure-velocity coupling|
|first-order upwind||specific dissipation rate|
|first-order upwind||volume fraction|
|0.01 m/s||water velocity (0,y,0)|
|0.01 m/s||sludge velocity (x,y,z)|
|0.1||the secondary phase volume fraction|
At the end of the solution process, two-dimensional and velocity, sludge and water volume fraction, and animation are obtained. This 2-D simulation starts with pipe fill with sludge and water as a mixture; as time passes, sludge settles in U shape pipe bottom, and water continues to flow through the pipe.
You can obtain Geometry & Mesh file and a comprehensive Training Movie which presents how to solve the problem and extract all desired results.