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Introduction to Aero-Thermal simulation using Ansys Fluent
The study of fluids to understand their behaviour in various environments has been made possible with the help of Computational Fluid Dynamics. With the advent of computers, CFD tools have been made easily accessible for the common man within the luxury of their living room. The use of these tools have helped shape many applications in the industry.
CFD can be applied to something that may seem to be as simple as the flow through a pipe to something as complex as the flow inside a combustion chamber. The same set of equations called as the Navier Stokes equations are solved for both cases but you need to employ additional equations when you want results from complex simulations. Understanding what to apply where is what we bring to you in this course.
Any CFD simulation has three parts to it’s process. The pre-processing part, the solver and the post processor.
The pre-processing part deals with prepping your geometry for the analysis. The computer cannot solve whatever geometry you throw at it. It needs to be “Discretized” first. What is this discretization? Well, it’s the process of converting your physical domain into your computational domain. The Navier Stokes equations are a set of Partial Differential equations but the computer can only solve algebraic equations. This is what takes place in the discretization process. It also helps the computer identify where it needs to solve the equations based on the material properties that we assign to the domain.
The solver part deals with making use of the N-S equations to get the relevant results. Applying the right boundary conditions and “Turbulence models” to simulate the flow is quintessential. The computer will not know what to do unless you tell it what you need. Setting up the solver is hence an important part.
After solving your simulation, you need to check the results. This is the post processing part. You get a lot of colourful plots, but you really need to understand what you are seeing on screen. The post processor will help you here.
In this particular course, you will be taken through all these steps using a commercial package called ANSYS.
ANSYS is a multiphysics simulation software that can be used for multiple purposes. For this course, we will follow the following tools for the three parts of the process mentioned earlier.
For the pre-processing part
Through this course, you will be taken through
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This week will take you through the basic theory on Fluid Mechanics and FLUID dynamics. We will cover the basic fundamental properties that are used to describe a fluid flow along with general CFD methods
Aerodynamics plays a very important role while designing a particular product which is exposed to environments that will affect its purpose. In this video, you will learn
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Using the mesh created in the previous week, you will be taken through how to setup a simulation to analyse the aerodynamic forces on a NACA0012 airfoil. In this video, you will ,
There can be two types of motion in fluid flow problems. One is rectilinear and the other one is rotary. Till now, we spoke about rectilinear motion. In order to simulate rotary motion, you need a different approach. In this video, you will
Types of mesh encountered at interfaces
Run a simulation to understand moving zones
From the two approaches discussed in the previous video, we will use a turbomachinery model to compare the application of both methods and compare the results. In this video, you will
An air compressor is a common turbomachinery component with a large number of moving parts. It is quite difficult to model the entire component. Hence, we will take a sector of the component and apply a periodic boundary condition to the geometry. We will use the FLUENT Console to employ periodic zones in the simulation. In this video, you will
Noise is generated by an aerodynamic body when it is moving through air. The shape of the body determines the sources that generate this noise. For a car, the mirrors, gaps between the wheels etc are regions of noise generation. Manufacturers use CAA( Computational Aero-Acoustics) to study such sources and minimise the discomfort caused by it to the customer. In this video, you will
The broadband acoustic solver is one of the CAA methodologies mentioned in the previous section. In this video, we will use the broadband solver to analyse the noise sources over an Ahmed Body. An Ahmed body is a simplified car body that was developed in 1984. This model is used for validation purposes. In this video, you will
ANSYS FLUENT is an industry leading software used for predicting fluid flows, heat and mass transfer.
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Engineering graduates or post graduates who wish to gain more knowledge in the field of aerodynamics
Student will gain insight on how to apply CFD to various aerodynamic applications by using ANSYS FLUENT. They will be able to generate the required mesh, setup the domain according to the size required and apply the relevant turbulence model to simulate airflow over the geometry.
ICEM CFD is a tool that is extremely robust in generating the domain for your geometry. It’s a trusted tool in academic research. ANSYS FLUENT is an industry leading software used for predicting fluid flows, heat and mass transfer.
These techniques are used in the real world in automotive and aerospace industries.
Many companies in the US use ANSYS extensively. Apart from that, companies like Ferrari and Volkswagen use FLUENT
FLUENT is used extensively for academic purposes since they maintain a good relationship with almost all academic institutions researching in CFD.
This course covers in-depth explanation of the tools used in the industry. Equipping yourself with these tools will help your resume stand out from the rest.
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