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Ansys Fluent CFDソフトウェア
流体シミュレーションソフトウェア

Ansys Fluentは、高度な物理モデリング機能と業界トップクラスの精度で知られる、業界をリードする流体シミュレーションソフトウェアです

高速、高精度のCFDシミュレーション

イノベーションを通じて、より優れた、迅速な意思決定を支援するAnsys Fluent CFDソフトウェア

Ansys Fluentは、高度な物理モデリング機能と業界トップクラスの精度で知られる、業界をリードする流体シミュレーションソフトウェアです

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    User-Friendly Interface
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    Single Window, Streamlined Workflow
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    Best-in-Class Physics Models
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    Parallel Capabilities for Meshing and Solving

CFDソフトウェアの主な機能

この強力な流体シミュレーションソフトウェアを使用することで、設計サイクルを加速することができます。Ansys Fluent には、クラス最高レベルの物理モデルが搭載されており、大規模で複雑なモデルを正確かつ効率的に解析できます。

  • Task-Based Workflows
  • Turbulence Modeling
  • Single and Multiphase Flows
  • Reduced Order Models
  • Expressions
  • Acoustics
  • Combustion
  • Shape Optimization
  • Overset Mesh
  • Conjugate Heat Transfer
  • Fluid-Structure Interaction
  • HPC

January 2024

What's New

In 2024 R1, Ansys Fluent software updates include physics and modeling enhancements, new usability and user experience improvements, workflow updates for industry application use cases such as battery modeling and external aerodynamics, and much more.

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Fluent GPU Solver Enhancements

New enhancements to the GPU solver in 2024 R1 include new models and physics capabilities, including support for the Coupled Solver, non-conformal interfaces, sliding mesh, combustion with detailed and stiff chemistry, enhanced solution monitors and more.

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Fluent CPU Solver Enhancements

New modeling and physics enhancements include the stiff chemistry solver and the eddy dissipation concept model compatibility with the adjoint solver, 10-20% speed-up for conjugate heat transfer (CHT) calculations for applications with high solid-to-fluid mesh count ratios, and discrete phase modeling for multi-phase flows, coupling, and radiation sources.

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New Fluent Web Interface

A new Fluent web-based UI that allows users to access their simulations remotely via a web browser is now available. The web UI is a modern yet familiar interface that enables users to start, stop, and pause solver jobs to evaluate real-time results as calculations run. Available for solution controls, monitoring, and post-processing. 

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Fluent Updates for Aerospace Applications

Aerospace application updates include accuracy improvements to the two-temperature equation model for high-speed flight regimes that now match better with measured data. The Virtual Blade Model (VBM), widely used for rotorcraft and urban air mobility applications, now includes additional outputs, including Xp-force and Yp-force.

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PyFluent Improvements

PyFluent updates include an improved workflow interface for a cleaner and more efficient programming style, new API availability to access and modify volumetric solution data, and usability improvements of field-data APIs with a purpose-designed interface for more straightforward interpretation.

Design Quieter Products with Ansys Fluent Sound
AI/ML for Turbulence Modeling

Turbulence model tuning with AI/ML is now available. The adjoint solver and AI/ML calibrate GEKO coefficients against a high-fidelity LES solution, yielding LES-level accuracy at the cost of RANS.

Applications

View all Applications
Gas Turbines

Gas Turbines

Ansys gas turbine simulation solution enables you to design and optimize the next generation of gas turbines.

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FAQs

Ansys Fluent is a general-purpose computational fluid dynamics (CFD) software used to model fluid flow, heat and mass transfer, chemical reactions, and more. Fluent offers a modern, user-friendly interface that streamlines the CFD process from pre- to post-processing within a single window workflow. Fluent is known for its advanced physics modeling capabilities, which include turbulence modeling, single and multiphase flows, combustion, battery modeling, fluid-structure interaction, and much more.

Also known for its efficient HPC scaling, large models can easily be solved in Fluent on multiple processors on either CPU or GPU. Multiple solver options are available, including pressure-based and density-based CPU solvers to cover low-speed to hypersonic flows and a pressure-based native GPU solver.

To install Ansys Fluent, first, you will have to download the Fluids package from the Download Center in the Ansys Customer Portal. Once the Fluids package is downloaded, you can follow the steps below.

  1. Open the Ansys Installation Launcher and select Install Ansys Products. Read and accept the clickwrap to continue.
  2. Click the right arrow button to accept the default values throughout the installation.
  3. Paste your hostname in the Hostname box on the Enter License Server Specification step and click Next.
  4. When selecting the products to install, check the Fluid Dynamics box and Ansys Geometry Interface box.
  5. Continue to click Next until the products are installed, and finally, click Exit to close the installer.

If you need more help downloading the License Manager or other Ansys products, please reference these videos from the Ansys How To Videos YouTube channel.

Installing Ansys License Manager on Windows
Installing Ansys 2022 Releases on Windows Platforms

Data can be exported after a Fluent calculation by selecting File - Export - Solution Data. Fluent allows users to export data to Mechanical APDL input, ASCII, ACS, CDAT, CGNS, CFF, EnSight Case Gold, and many other formats. To export data during a transient calculation, you will have to set up the case file so that the solution and particle history data are exported as the calculation progresses. This can be done by creating an automatic export definition using the Calculations Activities Task Page. Click the Create button under Automatic Export and select Solution Data Export, then select the file type, cell zones, surfaces, and quantities you would like to export.

Current customers can download Ansys Fluent from the Download Center in the Ansys Customer Portal. For those who are not current customers but are interested in trying Fluent, Ansys offers a free 30-day trial of Fluent upon request that comes with a CAD model and step-by-step pdf and mp4 tutorial. If you are a student, you can download our free student software and use it along with our free courses, support community, and a wealth of student-focused tutorials. 

Ansys offers a variety of options for users of all skill levels to learn how to use Ansys Fluent. If you are interested in enhancing your simulation and general physics knowledge of fluids, Ansys offers Ansys Innovation Courses, which are free courses that will teach you the underlying physics in a problem and how Fluent is used to help solve this problem  https://courses.ansys.com/index.php/fluids/

For introductory product-specific step-by-step tutorials, new feature videos, and general tips & tricks, we have the Ansys How to Videos on YouTube  

Finally, the Ansys Learning Hub provides you with all the training resources needed to learn Ansys Fluent from the ground up. The Learning Hub has self-paced video courses, CAD models, best practice guides, demo videos, and learning rooms for questions and discussions to learn from the Ansys experts. 

Ansys Fluent has two guided workflows to mesh a CAD model, the watertight geometry workflow and the fault-tolerant meshing workflow. Both workflows accelerate meshing by organizing the process into a user-friendly, task-based workflow that offers relevant choices and options but also has the flexibility to be customized. The watertight geometry workflow is for watertight CAD geometries that do not require much clean-up and modifications. The fault-tolerant meshing workflow is for more complicated non-water-tight CAD geometries that may require some clean-up and modifications (defects such as overlaps, intersections, holes, duplicates, etc.). 

Mesh quality can be improved in a variety of places in Ansys Fluent. If you are still in the process of generating your mesh in Fluent Meshing mode, you can insert a task after both the 'Generate the Surface Mesh' task and 'Generate the Volume Mesh' task by right-clicking on either one and inserting a new 'Improve Mesh' task. To improve the surface mesh, you will have to enter a face quality limit to target, and when improving the volume mesh, you will have to enter a cell quality limit value to target. If you are in Fluent Solution mode, you can improve the mesh quality by selecting the improve the mesh option on the Quality button under the Domain tab. When selected, you will then enter the percentage of the total cells to be improved, and the number of iterations of smoothing sweeps performed.

Poor mesh quality can also be caused by insufficient mesh resolution of geometry details or by poor underlying CAD. Local mesh refinement controls can resolve geometry details appropriately, and poor CAD models can be improved in SpaceClaim/Discovery, or you can use Fluent's Fault Tolerant meshing workflow, which is robust to CAD faults.

Ansys Fluent は、正確で信頼性の高い流体シミュレーション結果を生成します

Ansys Fluent は、CFD 解析の新たな可能性を引き出します。高速なプリプロセッシングと解析時間の短縮を実現した流体シミュレーションソフトウェアで、市場への参入を最速で実現します。業界をリードするFluentの機能は、無限のイノベーションを可能にする一方で、精度については決して妥協しません。

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CFDシミュレーションツールの主な機能

効率的でカスタマイズ可能なワークスペースで、市場で最も優れた流体シミュレーションツールをご覧ください。

  • 効率的なワークフロー
  • バッテリーモデリング
  • 電気モータの冷却
  • 乱流モデリング
  • 混相流
  • 燃焼モデル

Accelerate your pre- and post-processing with streamlined workflows for meshing and application setups.

Fluent has customizable, task-based workflows for pre-processing to help accelerate the process of generating a high-quality CFD-ready mesh. These workflows are for both clean and dirty CAD. Application workflows are streamlined to help reduce the amount of clicks and panels a user has to deal with. These workflows include multiphase modeling, batteries, shape optimization, aerodynamics and more.

迅速かつ正確なシミュレーションにより、 バッテリー設計 と安全性を向上させます。電気化学は経年変化や寿命の予測に利用できます。バッテリーの熱管理と暴走 をシミュレーションして、最高の性能と安全性を確保できます。 主要な熱特性を抽出することで次数低減モデル(Reduced Order Model:次数低減モデル)を作成し、瞬時に温度を解析することができます。

Electric motor cooling is critical as you move to higher power, high-efficiency equipment. Fluent can be used to find the appropriate cooling mechanism for an electric motor. Optimize this method, whether it's natural, water or spray cooled, to ensure motor efficiency is not impacted and magnets are not damaged.

A wide range of turbulence models are available to choose the right model for your application. Fluent offers a wide range of turbulence models including the industry-leading Generalized k-ω (GEKO) model. GEKO is a revolutionary concept with tunable coefficients that can be adjusted to different flow regimes.

Accurately simulate multiphase flows including gas-liquid, liquid-liquid, gas-solid, particle flows and even DEM. Different modeling approaches are needed as you move from single to multiphase flow applications, and Ansys understands this. To help accurately predict these challenging flows, we offer a wide range of models for gas, liquid, solid, particle flows and even DEM to get you the most accurate results.

Accurately predict interactions between fluids and solids from pressure and/or thermal loads. Solve your fluid-structure interaction challenge to make sure your product is safe, reliable and optimized. Fluent can solve FSI problems standalone and couples with Ansys Mechanical for the most complex simulations.

Accurate combustion models allow you to gain insight into system performance and flow phenomena.

Assuring you have accurate combustion is critical for the precise mix of turbulence, chemistry and the interaction between them. Fluent offers accurate and validated reacting flow models for your combustion applications.

ANSYS FLUENT RESOURCES & EVENTS

Technical Papers

Technical Paper
Ansys Webinar
Best Practice: Generalized k-⍵ Two-Equation Turbulence Model in Ansys CFD (GEKO)D

Ansys developed a new turbulence model family called Generalize k-w (GEKO) model with the goal of turbulence model consolidation. GEKO is a two-equation model, based on the k-w model formulation, but with the flexibility to tune the model over a wide range of flow scenarios.

Technical Paper
Ansys webinar
Best Practice: Scale-Resolving Simulations in Ansys CFD

This report is intended as an addition to the code-specific Theory and User Documentation available for both Ansys Fluent and Ansys CFX. That documentation describes in detail how to select and activate these models, so that information is not repeated here. 

Technical Paper
Ansys
Best Practice: RANS Turbulence Modeling in Ansys CFD

The goal of this paper is to guide a user through the process of optimal RANS model selection within the Ansys CFD codes, especially Ansys Fluent and Ansys CFX.



Videos



Ansys software is accessible

It's vital to Ansys that all users, including those with disabilities, can access our products. As such, we endeavor to follow accessibility requirements based on the US Access Board (Section 508), Web Content Accessibility Guidelines (WCAG), and the current format of the Voluntary Product Accessibility Template (VPAT).

Ansysができること

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