Pouring Water out of a Bottle Simulation, Ansys Fluent Training
Price: $12
In this project, the Pouring Water out of a Bottle has been simulated and the results of this simulation have been investigated.
Pouring Water out of a Bottle Simulation, Ansys Fluent Training
Price: $12
In this project, the Pouring Water out of a Bottle has been simulated and the results of this simulation have been investigated.
Project Description
In this project, Ansys Fluent software has been used for numerical simulation of pouring water out of the bottle. The Eulerian model has been used to simulate and solve the two-phase flow field equations. The Eulerian multiphase model in ANSYS FLUENT allows for the modeling of multiple separate yet interacting phases. The phases can be liquids, gases, or solids in nearly any combination.
Geometry & Mesh
The 2-D geometry of the present model is generated using SpaceClaim software.
The meshing of the present model has been done using Ansys Meshing software. The mesh type is unstructured in all of the computational domains, and the element number is equal to 150,642.
Pouring water CFD Simulation Settings:
We consider several assumptions to simulate the present model:
- Due to the incompressibility of the flow, the pressure-based solver method has been selected.
- The simulation is transient.
- The gravity effect is considered equal to -9.81 m.s-2 on Y-axis
The K-epsilon Standard viscous model with Standard wall function has been used to solve the turbulent flow equations. The pressure-velocity coupling scheme is SIMPLE. The second-order upwind discretization method has been used for Momentum, Turbulent kinetic energy, and Turbulent dissipation rate.
The boundary conditions and their details are shown in the figure below.
The following tables represent a summary of the defining steps of the problem in this project and its solution:
| Models | ||
| Multiphase | ||
| Model | Eulerian | |
| Eulerian parameters | Multi-Fluid VOF model | |
| Number of Eulerian phases | 2(air & water) | |
| Interface modeling | Sharp | |
| Formulation | Explicit | |
| Primary phase | air | |
| Secondary phase | water | |
| Viscous | ||
| k-epsilon | Standard | |
| Near wall treatment | Standard wall functions | |
| Material Properties | ||
| Air | ||
| Density | 1.225 | |
| viscosity | 1.7894e-05 | |
| water-liquid | ||
| Density | 998.2 | |
| viscosity | 0.001003 | |
| Boundary conditions | ||
| Outlet | Pressure outlet | |
| Methods | ||
| Pressure-Velocity Coupling | SIMPLE | |
| Pressure | PRESTO | |
| Momentum | Second-order upwind | |
| Turbulent kinetic energy | Second-order upwind | |
| Turbulent dissipation rate | Second-order upwind | |
| Volume fraction | Compressive | |
| Initialization | ||
| Initialization methods | Hybrid | |
| Patch | Phase | water |
| Variable | Volume Fraction | |
| Zones to patch | water | |
| Value | 1 | |
| Run calculation | ||
| Time step size | 0.0025 | |
| Max iterations/time step | 20 | |
| Number of time steps | 3708 | |
Pouring Water Results
After the solution process is completed, contours of water velocity, Pressure, water volume fraction, and Eddy viscosity are extracted. As can be seen, under the influence of gravity, the water inside the bottle starts to flow, and it discharges to another empty container and fills it.