skip to Main Content
Sale

Waterfall CFD Simulation Using Two-Phase Flow

Rated 0 out of 5
(be the first to review)

$55.00 $13.00

In this project, the separation of laminar fluid flow in a natural waterfall is investigated and analyzed.

This product includes a Mesh file and a comprehensive Training Movie.

There are some free products to check our service quality.

To order your ANSYS Fluent project (CFD simulation and training), contact our experts via [email protected], online support, or WhatsApp.

Description

Introduction

Flow separation from a surface or separation of two-phase flows (natural waterfall) is one of the most important issues in fluid mechanics. Flow separation due to the specific shape of the geometry or flow can have positive or negative effects on its surroundings. Therefore, it has always been tried to control this phenomenon as much as possible and to investigate the possible effects and consequences.

Project Description

In this project, the separation of laminar fluid flow from a surface which is easily seen in a natural waterfall is investigated and analyzed. This separation occurs only due to gravity and the difference in height between the two surfaces. Water enters the fluid domain with a mass flow of 20 Kg/s and falls when the lower bed is finished, converting into a waterfall. K-epsilon and implicit VOF models are activated to analyze this flow.

waterfall Geometry & Mesh

The geometry and the mesh for this project are created inside Gambit®. The geometry includes a mass-flow inlet, 3 pressure outlets, several symmetry and wall boundary conditions and 9 different partitions.  The mesh type used for this geometry is structured and the element number is 626400.

waterfall waterfall

Waterfall 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 considered to be steady and do not change as a function time.
  • The effect of gravity has been taken into account and is equal to -9.81 in Y direction.

The applied settings are summarized in the following table.

 
Models
Viscous model k-epsilon
k-epsilon model RNG
near wall treatment standard wall function
Multi phase VOF
Formulation Implicit
Phase 1 Air
Phase 2 Water
Boundary conditions
Inlet Mass-flow inlet
Water mass-flow rate 20 Kg/s
Turbulent kinetic energy 1 m2/s2
Turbulent dissipation rate 1 m2/s3
Outlets Pressure outlet
Gauge pressure 0 Pa
Turbulent kinetic energy 1 m2/s2
Turbulent dissipation rate 1 m2/s3
Walls
wall motion stationary wall
Solution Methods
Pressure-velocity coupling Simple
Spatial discretization pressure PRESTO!
Volume fraction Modified HRIC
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,z) (0,0,0) m/s
water volume fraction 0
Turbulent kinetic energy 1 m2/s2
Turbulent dissipation rate 1 m2/s3

Results

Contours of pressure, velocity, volume fraction, etc. are presented.

There are a Mesh file and a comprehensive Training Movie that presents how to solve the problem and extract all desired results.

Reviews

There are no reviews yet.

Leave a customer review

Your email address will not be published. Required fields are marked *

Back To Top
Search
you tube
Call On WhatsApp