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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.

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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 – Free Surface (Weir 2D)

Free surface is the surface of a fluid that is subject to zero parallel shear stress, such as the interface between two homogeneous fluids, for example, liquid water and the air in the Earth’s atmosphere.

Ansys Fluent – Drag Coefficient (Reference Values) Cube 3D

Source: NASA The drag coefficient is a number that aerodynamicists use to model all of the complex dependencies of shape, inclination, and flow conditions on aircraft drag. This equation is simply a rearrangement of the drag equation where we solve for the drag...

Ansys Fluent Tutorial | Elbow 3D Steady & Unsteady Simulation

In this tutorial, you will learn how to simulate an Elbow 3d using Ansys Fluent, This is a basic tutorial and you can use Ansys Student version.

Ansys Fluent – Compressible Flow

Compressibility effects are encountered in gas flows at high velocity and/or in which there are large pressure variations. When the flow velocity approaches or exceeds the speed of sound of the gas or when the pressure change in the system is large,

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 – Import Pressure to Ansys Mechanical (FSI)

Fluid-structure interaction (FSI) is the multiphysics study of how fluids and structures interact. The fluid flow may exert pressure and/or thermal loads on the structure. These loads may cause structural deformation significant enough to change the fluid flow itself.

Ansys CFX – Centrifugal Pump & Cavitation

A centrifugal pump is a mechanical device designed to move a fluid by means of the transfer of rotational energy from one or more driven rotors, called impellers. Fluid enters the rapidly rotating impeller along its axis and is cast out by centrifugal force along its circumference through the impeller’s vane tips.

BladeGen + Turbogrid + Ansys CFX – Centrifugal Pump

A centrifugal pump is a mechanical device designed to move a fluid by means of the transfer of rotational energy from one or more driven rotors, called impellers.

Ansys CFX Tutorial | Flow through Porous Media

In this tutorial you will learn how to simulate a Flow through Porous Media using Ansys CFX.

Ansys CFX – Compressible Flow

Ansys CFX – Compressible Flow

Source: Ansys Compressibility effects are encountered in gas flows at high velocity and/or in which there are large pressure variations. When the flow velocity approaches or exceeds the speed of sound of the gas or when the pressure change in the system ( ) is large,...

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 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 – Body of Influence

The Body of Influence option is available in the Type field if you selected a body and Use Adaptive Sizing is set to No. Using this option, you can set one body as a source of another body

Ansys Meshing – Refinement Mesh

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

Ansys Meshing – Multizone + Inflation

The MultiZone mesh method provides automatic decomposition of geometry into mapped (sweepable) regions and free regions. When the MultiZone mesh method is selected, all regions are meshed with a pure hexahedral mesh if possible.

Ansys Meshing – How to select internal walls?

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

Ansys Meshing – Body of Influence

Ansys Meshing – Body of Influence

Source: Ansys The Body of Influence option is available in the Type field if you selected a body and Use Adaptive Sizing is set to No. Using this option, you can set one body as a source of another body (that is, a Body of Influence). The Body of Influence will...

Ansys Meshing – Sphere of Influence

Ansys Meshing – Sphere of Influence

Source: Ansys The Sphere of Influence option is available in the Type field after you select an entity such as a body, face, edge, or vertex. If the Sphere of Influence is scoped to a body or vertex, the Sphere of Influence affects the entire body regardless of sizing...

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 DesignModeler Tutorials

Ansys DesignModeler – Imprint Face

Similar to Slice, Imprint Faces imprints curves onto the faces of active bodies in the model. The bodies themselves are not split into multiple pieces. It is available whenever active bodies are present.

Ansys DesignModeler – Pipes Y-Shaped/T-Shaped

The ANSYS DesignModeler application is designed to be used as a geometry editor of existing CAD models. The ANSYS DesignModeler application is a parametric feature-based solid modeler designed so that you can intuitively and quickly begin drawing 2D sketches, modeling 3D parts, or uploading 3D CAD models for engineering analysis preprocessing.

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 Autodesk Inventor to ANSYS Design Modeler directly

Use the Open command to open files created in any supported format. Use the Save As command to export parts, assemblies, drawing sheets, and 3D markups to formats read by other applications. Your license type determines which of these actions are supported.

Ansys DesignModeler – Thin/Surface

Ansys DesignModeler – Thin/Surface

Source: Ansys he Thin/Surface feature has two distinct applications: Create thin solids Simplified shelling The three selection tools are: Faces to Remove: selected faces will be removed from their bodies. Faces to Keep: selected faces will be kept, while unselected...

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