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CFD.NINJA – ANSYS CFD

CFD.NINJA is a group founded in 2014, since then we have been dedicated to the research and dissemination of topics related to Computational Fluid Dynamics (CFD) for which we use various CFD simulation software such as ANSYS FLUENT, ANSYS CFX, ANSYS MESHING, ANSYS ICEM CFD, OpenFoam, DesignModeler, SpaceClaim, Rocky DEM, Autodesk Inventor, Ensight, etc.
We invite you to subscribe to our youtube channel, Facebook page, Twitter and Instagram where we share monthly ANSYS CFD tutorials. Eventually, we do a giveaway for CFD books and gift cards where our subscribers participate.

 

 

More than 150 Free Tutorials using Ansys Fluent, Ansys CFX, Ansys Meshing, DesignModeler, SpaceClaim, Autodesk Inventor, ICEM CFD.

CFD.NINJA Bookstore

CFD.NINJA Tutorials

We have a large number of tutorials that we have developed over several years and we make them available to you. In many of them, you can download files, geometries, and meshes. Soon we will be uploading more tutorials for experts and beginners of ANSYS CFD. We hope you can share this website with your friends and colleagues.

Source: Ansys
Computational fluid dynamics (CFD) is a tool with amazing flexibility, accuracy and breadth of application. But serious CFD, the kind that provides insights to help you optimize your designs, can be out of reach unless you choose your software carefully. To get serious CFD results, you need serious software. Ansys CFD goes beyond qualitative results to deliver accurate quantitative predictions of fluid interactions and trade-offs. These insights reveal unexpected opportunities for your product — opportunities that even experienced engineering analysts can miss.

Ansys Fluent Tutorials

Source: Ansys

Fluent software contains the broad, physical modeling capabilities needed to model flow, turbulence, heat transfer and reactions for industrial applications. These range from air flow over an aircraft wing to combustion in a furnace, from bubble columns to oil platforms, from blood flow to semiconductor manufacturing and from clean room design to wastewater treatment plants. Fluent spans an expansive range, including special models, with capabilities to model in-cylinder combustion, aero-acoustics, turbomachinery and multiphase systems.

Ansys Fluent – Static Mixer

A static mixer is a precision engineered device for the continuous mixing of fluid materials, without moving components. Normally the fluids to be mixed are liquid, but static mixers can also be used to mix gas streams, disperse gas into liquid or blend immiscible...

Ansys Fluent – Airfoil 3D (NACA 4412)

The NACA airfoils are airfoil shapes for aircraft wings developed by the National Advisory Committee for Aeronautics (NACA). The shape of the NACA airfoils is described using a series of digits following the word “NACA”.

Ansys Fluent – Axial Fan

An axial fan is a type of fan that causes gas to flow through it in an axial direction, parallel to the shaft about which the blades rotate. The flow is axial at entry and exit. The fan is designed to produce a pressure difference, and hence force, to cause a flow...

Ansys Fluent – Heat Exchanger (Shell and Tubes)

A heat exchanger is a device used to transfer heat between two or more fluids. The fluids can be single or two phase and, depending on the exchanger type, may be separated or in direct contact. Devices involving energy sources such as nuclear fuel pins or fired heaters are not normally regarded as heat exchangers although many of the principles involved in their design are the same.

Ansys Fluent Tutorial | Melting

Ansys Fluent Tutorial | Melting

Source: Ansys If you are including melting or solidification in your VOF calculation, note the following: It is possible to model melting or solidification in a single phase or in multiple phases. For phases that are not melting or solidifying, you must set the latent...

Ansys CFX Tutorials

Source: Ansys

Ansys CFX is a high-performance computational fluid dynamics (CFD) software tool that delivers reliable and accurate solutions quickly and robustly across a wide range of CFD and multiphysics applications. CFX is recognized for its outstanding accuracy, robustness and speed when simulating turbomachinery, such as pumps, fans, compressors and gas and hydraulic turbines.

Ansys CFX – Heat Transfer Fluid/Solid

Heat transfer is the process of transfer of heat from high temperature reservoir to low temperature reservoir. In terms of the thermodynamic system, heat transfer is the movement of heat across the boundary of the system due to temperature difference between the system and the surroundings.

Ansys CFX – Heat Exchanger (Shell & Tubes)

A heat exchanger is a device used to transfer heat between two or more fluids. The fluids can be single or two phase and, depending on the exchanger type, may be separated or in direct contact.

 Convert Photography to Mesh using Gmsh

Learn how to generate a CFD mesh from any photograph using the Gmsh mesher.

Ansys CFX – Steady & Transient Simulation

Source: ANSYS Fluent software contains the broad, physical modeling capabilities needed to model flow, turbulence, heat transfer and reactions for industrial applications. These range from air flow over an aircraft wing to combustion in a furnace, from bubble columns...
Ansys CFX – Heat Transfer through a Pipe

Ansys CFX – Heat Transfer through a Pipe

Source: NASA Thermodynamics is a branch of physics that deals with the energy and work of a system. Thermodynamics deals only with the large scale response of a system that we can observe and measure in experiments. In aerodynamics, we are most interested in the...

Ansys CFX – Heat Exchanger (Shell & Tubes)

Ansys CFX – Heat Exchanger (Shell & Tubes)

Source: Thermopedia A heat exchanger is a device used to transfer heat between two or more fluids. The fluids can be single or two phase and, depending on the exchanger type, may be separated or in direct contact. Devices involving energy sources such as nuclear fuel...

Ansys CFX – Vortex Generator 3D

Ansys CFX – Vortex Generator 3D

In fluid dynamics, a vortex is a region in a fluid in which the flow revolves around an axis line, which may be straight or curved. Vortices form in stirred fluids, and may be observed in smoke rings, whirlpools in the wake of a boat, and the winds surrounding...

Ansys Meshing Tutorials

Source: Ansys

Meshing is an integral part of the engineering simulation process where complex geometries are divided into simple elements that can be used as discrete local approximations of the larger domain. The mesh influences the accuracy, convergence and speed of the simulation. Furthermore, since meshing typically consumes a significant portion of the time it takes to get simulation results, the better and more automated the meshing tools, the faster and more accurate the solution.

Ansys provides general purpose, high-performance, automated, intelligent meshing software which produces the most appropriate mesh for accurate, efficient multiphysics solutions — from easy, automatic meshing to highly crafted mesh. Methods available cover the meshing spectrum of high-order to linear elements and fast tetrahedral and polyhedral to high-quality hexahedral and Mosaic. Smart defaults are built into the software to make meshing a painless and intuitive task delivering the required resolution to capture solution gradients properly for dependable results.

Ansys Meshing – Section Plane

Meshing is an integral part of the engineering simulation process where complex geometries are divided into simple elements that can be used as discrete local approximations of the larger domain. The mesh influences the accuracy, convergence and speed of the simulation.

Ansys Meshing – Fine Mesh

Available when Use Adaptive Sizing is set to Yes, the Resolution option controls the mesh distribution. The default setting is Program Controlled.

Ansys Meshing – Method

For solid models, meshing technologies from ANSYS provide robust, well-shaped quadratic tetrahedral meshing on even the most complicated geometries.

Ansys Meshing – Match Control

In this tutorial, you will learn how to use the Match Control tool in Ansys Meshing. Match Control allows duplicating the mesh in a body. We have two option Match Control Cyclic and Arbitrary.

Ansys Meshing – Sizing

Ansys Meshing – Sizing

Source: Ansys The Sizing options provide greater control over the following properties: Mesh growth (transition) between small and large sizes based on a specified growth rate Curvature based refinement and angles between normals for adjacent mesh elements...

Ansys Meshing – Refinement

Ansys Meshing – Refinement

Source: Ansys Refinement controls specify the maximum number of times you want an initial mesh to be refined. You can specify refinement controls for faces, edges, and vertices. To insert a refinement control: Click Mesh on the Tree Outline. Do one of the following:...

Ansys Meshing – Method

Ansys Meshing – Method

Source: Ansys   By default, the application uses the Automatic Method control, which attempts to use sweeping for solid models and quadrilateral element generation for surface body models. If solid bodies can't be swept, the body is meshed with the Patch...

Ansys DesignModeler Tutorials

Ansys DesignModeler – Manipulating Autodesk Inventor Geometry

The ANSYS DesignModeler application is designed to be used as a geometry editor of existing CAD models.

Ansys DesignModeler – Import from BladeGen to DesignModeler

Ansys BladeModeler software is a specialized, easy-to-use tool for the rapid 3D design of rotating machinery components. Ansys BladeModeler is used to design axial, mixed-flow and radial blade components in applications such as pumps, compressors, fans, blowers, turbines, expanders, turbochargers, inducers and more.

Ansys DesignModeler – Body Transformation

The Body Operation feature allows you to manipulate bodies. Any type of body can be used with body operations, regardless of whether it is active or frozen. However, point feature points (PF points), attached to the faces or edges of the selected bodies, are not affected by the body operation.

Ansys DesignModeler – Mid-Surface

The Mid-Surface feature allows the creation of Surface bodies that are midway between existing Solid body faces. The resulting surface body/bodies have a Thickness property which defines the “thickness” that surface body represents.

Ansys DesignModeler – Connect

Ansys DesignModeler – Connect

Source: Ansys The Connect feature may be used to align and possibly join a set of vertices, edges or faces. The alignment takes the form of a stretching and aligning of existing geometry. Entities may be connected that are coincident to within a tolerance that is...

Ansys DesignModeler – Mid-Surface

Ansys DesignModeler – Mid-Surface

Source: Ansys The Mid-Surface feature allows the creation of Surface bodies that are midway between existing Solid body faces. The resulting surface body/bodies have a Thickness property which defines the "thickness" that surface body represents. The faces can be...

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