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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 | Flow Through Porous Media

In this tutorial, you will learn how to simulate a porous media using Ansys Fluent. In the first part, you can create the geometry and the mesh and the second part Ansys Fluent setup.

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 – Scaling the Mesh

Internally, ANSYS FLUENT stores the computational mesh in meters, the SI unit of length. When mesh information is read into the solver, it is assumed that the mesh was generated in units of meters. If your mesh was created using a different unit of length (inches, feet, centimeters, etc.),

Ansys Fluent – Dense Discrete Phase Model (DDPM)

n addition to solving transport equations for the continuous phase, ANSYS FLUENT allows you to simulate a discrete second phase in a Lagrangian frame of reference. This second phase consists of spherical particles (which may be taken to represent droplets or bubbles) dispersed in the continuous phase.

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 – 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 ( $\Delta p /p$) is large, the variation of the gas density with pressure has a significant impact on the flow velocity, pressure, and temperature.

Ansys CFX – Heat Transfer through a Pipe

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 thermodynamics of propulsion systems and high speed flows.

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.

Ansys CFX – NACA 4412 (Structured Mesh)

The NACA four-digit wing sections define the profile by:
First digit describing maximum camber as percentage of the chord.
Second digit describing the distance of maximum camber from the airfoil leading edge in tenths of the chord.

Ansys CFX – NACA 4412 (Structured Mesh)

Ansys CFX – NACA 4412 (Structured Mesh)

Source: NASA The NACA four-digit wing sections define the profile by:[1] First digit describing maximum camber as percentage of the chord. Second digit describing the distance of maximum camber from the airfoil leading edge in tenths of the chord. Last two digits...

OpenFOAM vs ANSYS CFX

OpenFOAM vs ANSYS CFX

Source: CFD Direct OpenFOAM is the free, open source CFD software developed primarily by OpenCFD Ltd since 2004. It has a large user base across most areas of engineering and science, from both commercial and academic organisations. OpenFOAM has an extensive range of...

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 – Mapped & Match Control

The Match Control matches the mesh on two or more faces or edges in a model. The Meshing application provides two types of match controls—cyclic and arbitrary.

Ansys Meshing – Parallel Meshing

You can control three mechanisms in ANSYS Workbench that operate in a parallelized manner:
Remote Solve Manager Design Point updates. Refer to RSM Configuration.

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.

Ansys Meshing – Hexahedral Mesh (Pipe)

The MultiZone mesh method provides automatic decomposition of geometry into mapped (structured/sweepable) regions and free (unstructured) regions.

Ansys Meshing | Inflation

Ansys Meshing | Inflation

Source: Ansys You can set the Use Automatic Inflation control so that inflation boundaries are selected automatically depending on whether or not they are members of Named Selections groups. The following options are available: None Program Controlled All Faces in...

Ansys Meshing – Keyframe Animation

Ansys Meshing – Keyframe Animation

Source: Ansys You can make animations based on keyframes. Keyframes define the start and endpoints of each section of animation. Keyframes are linked together by drawing a number of intermediate frames, the number of which is set by the # of Frames field in the...

Ansys DesignModeler Tutorials

Ansys DesignModeler – Extrude, Revolve, Sweep & Skin/Loft

Use the Extrude button to create an extruded feature. The active sketch is the default input but can be changed by selecting the desired sketch, a plane from face (boundary used) or Named Selection features of Point features in the Tree Outline.

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 – Analysis Tools

The analysis tools consist of a set of functions which allow you to measure the distance between any two entities, obtain model entity information, and detect model faults. The function supports:

Ansys Fluent Tutorial | Heatsink

In this tutorial, you will learn how to simulate a Heatsink using Ansys Fluent. In this first video, you will see how to create the geometry and the mesh using DesignModeler, Ansys Meshing and Ansys Fluent.

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