Volume of Fluid (VOF), Package for Advanced, Part 2
$780.00 Student Discount
This CFD training package is prepared for ADVANCED users of ANSYS Fluent software in the Multi-phase Volume of Fluid (VOF) area, including 10 practical exercises.
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Description
Multi-phase Volume of Fluid (VOF) CFD Simulation Package, ANSYS Fluent Training for ADVANCED Users (Part-II)
This CFD training package is prepared for ADVANCED users of ANSYS Fluent software in the Multi-phase Volume of Fluid (VOF) area, including 10 practical exercises. You will learn and obtain comprehensive training on how to simulate projects. The achieved knowledge will enable you to choose the most appropriate modeling approaches and methods for applications and CFD simulations.
Sloshing
Experimental and numerical studies show the importance of the effect of fluid sloshing within the tank on the maneuverability of floating devices like ships, boats, and so on. In project number 1, we simulate a sloshing fluid inside a tank.
In project number 2, the rotation of a cube containing water and air is. The interaction of water and air inside the cube is modeled using the Volume of Fluid (VOF) multi-phase approach. This project investigates the simplified sloshing effect in fluid containers where a situation similar to the one studied here can occur due to the acceleration of the carrier vehicle. A User Defined Function (UDF) defines the variable angular velocity of the cube’s rotation.
Cavitation (Volume Of Fluid)
The cavitation phenomenon occurs when the pressure of a liquid falls below its vapor pressure at a constant temperature. In this case, the particles turn from liquid to vapor and form a bubble. Therefore, one of the most important issues in the industry is to investigate the possibility of cavitation inside the pumps and solutions to reduce it. So in project number 3, another fluid is defined as diesel vapor with a density equal to 9.4 kg.m-3 and a viscosity equal to 0.000007, and also the multi-phase VOF model is used.
The inducer can increase the inlet pressure to the pump impellers and improve the pump’s suction performance. One of the most important phenomena that should be considered in pumps is the phenomenon of cavitation. One of the essential reasons inducers are used in pumps is to reduce cavitation. In project number 4, the fluid flow of water and the cavitation phenomenon around an inducer inside a pipe is simulated.
Mixing Tank
In project number 5, Side Entry Mixing Tank in Different RPMs has been simulated. This has been done by the CFD numerical simulation method by Ansys Fluent software. A mixing tank has been simulated. The mixing process is essential in many industries. Side mixing blades are used to prevent these events because in most positions, due to space limitations, the blade can not enter the tank from above. This simulation is performed with the mesh motion method at different rotational speeds of 400 and 900 and 1400 rpm.
Solar Desalination (Volume Of Fluid)
In project number 6, the surface evaporation process in a 2D solar desalination system is simulated and analyzed. In this process, the surface of the fluid water will receive the warmth of solar rays, then, based on the principles of surface evaporation, the water molecules on the surface of the water will start to evaporate. A UDF was used to determine the phase change method. The VOF multi-phase model for three phases of air, water vapor, and water fluid has investigated the phase interactions.
Dam
Project number 7 simulates the effect of an Earthquake on a dam. A computational area is designed around a dam with water and air currents to perform this simulation. Therefore, a multi-phase model of VOF (volume of fluid) has been used to define two air and water flows. Using Region Production and the Patch tool, water flow can be separated from the initial airflow. The Frame Motion technique is used to define the earthquake process So by using a UDF to determine the type of movement and displacement of the computational area.
Water surface
In project number 8, the flow inside an open channel which has a 180-degree bend, with a side outlet is investigated. The Multi-phase Volume of Fluid (VOF) model is activated to simulate two water and air phases inside the canal. The water enters the canal with a mass flow rate of 45Kg/s and in the middle of the bent section, the obstacles will reduce the flow pressure and guide a portion of entered water to the side outlet for irrigation of a farm.
In project number 9, an attempt has been made to investigate the effect of the movement of a Jet Ski on the border of two fluids (water and air interface). The computational domain consists of an inlet wherein the water enters with a mass flow rate of 50000Kg/s and a pressure outlet. The multi-phase VOF model is activated for solving multi-phase flow equations and the standard k-epsilon model is exploited to account for the turbulence in fluid flows.
In project number 10, Two cubes falling into the liquid are simulated, in this tutorial. In general, it is essential to study the motion of objects in liquids. The fall of the cubes due to the acceleration of gravity helps a lot to understand the phenomenon of sloshing. Sloshing occurs when a partially filled reservoir with fluid is subjected to permanent or transient external forces.
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