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|align="left" style="background-color:#FFFFE6; border:1px solid #D5D5BB; padding-left:10px; padding-right:10px; padding-top:5px; padding-bottom:5px;"| Welcome to the Computational Fluid Dynamics Wiki, a project of ''CFD Online''.  Free to all, intended to produce the most comprehensive and useful CFD resource available, CFD-Wiki is created and maintained by volunteers from around the world. Please join us and [[CFD-Wiki:Contribute something today|contribute]] something today! You can also help by [[CFD-Wiki:Donate texts|donating your reports and theses]], or  by doing much need editing. 
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|align="left" style="background-color:#FFFFE6; border:1px solid #D5D5BB; padding-left:10px; padding-right:10px; padding-top:5px; padding-bottom:5px;"|'''[[CFD-Wiki:Introduction|Welcome to CFD-Wiki]]''' - a community project to create the ultimate, free Computational Fluid Dynamics reference. CFD-Wiki is written by thousands of volunteer authors from around the globe. Please join us and [[CFD-Wiki:Contribute something today|contribute something today]]! CFD-Wiki will never be better than the information we all fill it with. We are currently working on [[Special:Statistics|{{NUMBEROFARTICLES}}]] [[Special:PopularPages|articles]]. '''Also please help to spread the word about CFD-Wiki by using the [http://www.cfd-online.com/Tellafriend/wiki.php tell a friend] tool or [http://www.cfd-online.com/Marketing/wiki.php#linking linking to CFD-Wiki].'''
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Launched: November 20, 2005. We are currently working on
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[[Special:Statistics|{{NUMBEROFARTICLES}}]] [[Special:Allpages|articles]].
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[[CFD-Wiki:Introduction|Introduction]]<br />[[Help:Contents|Help]]<br /> [[CFD-Wiki:FAQ|FAQ]]<br />[http://www.cfd-online.com/Forum/wiki.cgi Forum]''
[[CFD-Wiki:Introduction|Introduction]]<br />[[Help:Contents|Help]]<br /> [[CFD-Wiki:FAQ|FAQ]]<br />[http://www.cfd-online.com/Forum/wiki.cgi Forum]''
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===[[Reference section]]===
===[[Reference section]]===
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:[[Fluid dynamics]], [[Turbulence modeling]], [[Numerical methods | Numerics]], [[Meshing]], ...
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:[[Fluid dynamics]], [[Turbulence modeling]], [[Numerical methods | Numerics]], [[Meshing]], [[Cavitation modeling]], [[Non-equilibrium Flow]]...
===[[Special topics]]===
===[[Special topics]]===
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: [[Aero-acoustics and noise|Acoustics]], [[Combustion]], [[Parallel computing]], [[Turbulence]], ...
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: [[Aero-acoustics and noise|Acoustics]], [[Combustion]], [[Parallel computing]], [[Turbulence]],[[Transition to turbulence]],[[Shape Design Optimization]], ...
===[[Application areas]]===
===[[Application areas]]===
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: [[Aerospace]], [[Automotive]], [[Turbomachinery]], ...
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: [[Aerospace]], [[Architecture]], [[Automotive]], [[Turbomachinery]], [[Water and Wastewater]]...
===[[Best practice guidelines]]===
===[[Best practice guidelines]]===
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===[[Validation and test cases]]===
===[[Validation and test cases]]===
: [[Validation and test cases#1-D test cases|1D Cases]], [[Validation and test cases#2-D test cases|2D Cases]], [[Validation and test cases#3-D test cases|3D Cases]], ...
: [[Validation and test cases#1-D test cases|1D Cases]], [[Validation and test cases#2-D test cases|2D Cases]], [[Validation and test cases#3-D test cases|3D Cases]], ...
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===[[What is Open Source?| The Open Source Section]]===
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: [[What is Open Source? |Introduction]]
===[[Codes]]===
===[[Codes]]===
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===[[Source code archive]]===
===[[Source code archive]]===
: [[Source code archive - educational|Educational]], [[Source code archive - code snippets|Code snippets]], ...
: [[Source code archive - educational|Educational]], [[Source code archive - code snippets|Code snippets]], ...
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===[[History of CFD]]===
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: [[Historical perspective]], [[Hall of fame]], [[Famous achievements in CFD]], ...
===[[FAQ's]]===
===[[FAQ's]]===
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: [[General CFD FAQ|General CFD]], [[Ansys FAQ|Ansys]], [[CD-adapco FAQ|CD-adapco]], [[Fluent FAQ|Fluent]], [[Numeca FAQ|Numeca]], [[CHAM FAQ|Phoenics]], [[CFD-Wiki:FAQ|CFD-Wiki]], ...
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: [[General CFD FAQ|General CFD]], [[Ansys FAQ|Ansys]], [[CONVERGE FAQ|CONVERGE]], [[Fluent FAQ|Fluent]], [[CHAM FAQ|Phoenics]], [[Siemens FAQ|Siemens]], [[CFD-Wiki:FAQ|CFD-Wiki]], ...
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===[[Previous featured articles|Featured article]]===
===[[Previous featured articles|Featured article]]===
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[[Image:Davinci_turbulence_small.gif]]
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[[Image:X-43A_(Hyper_-_X)_Mach_7_width_300px.jpg]]
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==[[Turbulence]]==
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==[[Baldwin-Lomax model]]==
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Turbulence is a state of fluid motion, characterized by apparently random and chaotic three-dimensional vorticity. When turbulence is present it usually dominates all other flow phenomena, resulting in increased energy dissipation, mixing, heat transfer, and drag... ''[[Turbulence|more]]''  
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The Baldwin-Lomax model is a classical algebraic turbulence model which is suitable for high-speed flows with thin attached boundary-layers, typically present in aerospace and turbomachinery applications. The Baldwin-Lomax model is not suitable for cases with large separated regions and significant curvature/rotation effects..
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''[[Baldwin-Lomax model|more]]''  
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''A good place to start for an introduction to fluid dynamics, this article considers CFD as it relates to turbulence.''
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''This article is a good example of a description of a turbulence model. [[Validation and test cases]] is the current focus area of CFD-Wiki. So don't hesitate, write something about your favourite test or validation case today!''
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[[CFD-Wiki:Donated texts|Donated texts]],
[[CFD-Wiki:Donated texts|Donated texts]],
[[CFD-Wiki:Stub|Stubs]],
[[CFD-Wiki:Stub|Stubs]],
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[[CFD-Wiki:Sandbox|Sandbox]]
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[[CFD-Wiki:Sandbox|Sandbox]],
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[[CFD-Wiki:Wish list|Wish List]]
===Help & resources===
===Help & resources===
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[[CFD-Wiki:Spam blacklist| Blacklist]]
[[CFD-Wiki:Spam blacklist| Blacklist]]
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===Small print===
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===Small print===  
[[CFD-Wiki:Copyrights|Copyrights]],
[[CFD-Wiki:Copyrights|Copyrights]],
[[CFD-Wiki:GNU Free Documentation License|License]],
[[CFD-Wiki:GNU Free Documentation License|License]],
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===[[CFD-Wiki:Old project news|Project news]]===
===[[CFD-Wiki:Old project news|Project news]]===
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'''[[CFD-Wiki:20 November 2005|20 November 2005]]''': CFD-Wiki launched to the public --[[User:Jola|Jola]] 18:12, 19 November 2005 (MST)
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'''[[CFD-Wiki:1 August 2006|1 August 2006]]''': Monthly focus area August 2006: Validation and test cases.
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'''[[CFD-Wiki:14 November 2005|14 November 2005]]''': The public launch date of the CFD-Wiki has been set to November 20, 2005. --[[User:Jola|Jola]] 10:39, 14 November 2005 (MST)
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'''[[CFD-Wiki:1 May 2006|1 May 2006]]''': Monthly focus area May 2006: Turbulence modeling.
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'''[[CFD-Wiki:20 November 2005|20 November 2005]]''': CFD-Wiki launched to the public.
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... [[CFD-Wiki:Old project news|[old news]]]
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''"I consider it the obligation of scientists and intellectuals to ensure that their ideas are made accessible and thus useful to society instead of being mere playthings for specialists." '' --Bjarne Stroustrup, from "Design and Evolution of C++"
''"I consider it the obligation of scientists and intellectuals to ensure that their ideas are made accessible and thus useful to society instead of being mere playthings for specialists." '' --Bjarne Stroustrup, from "Design and Evolution of C++"

Latest revision as of 21:52, 9 December 2017

Welcome to CFD-Wiki - a community project to create the ultimate, free Computational Fluid Dynamics reference. CFD-Wiki is written by thousands of volunteer authors from around the globe. Please join us and contribute something today! CFD-Wiki will never be better than the information we all fill it with. We are currently working on 570 articles. Also please help to spread the word about CFD-Wiki by using the tell a friend tool or linking to CFD-Wiki.

Introduction
Help
FAQ
Forum

Reference section

Fluid dynamics, Turbulence modeling, Numerics, Meshing, Cavitation modeling, Non-equilibrium Flow...

Special topics

Acoustics, Combustion, Parallel computing, Turbulence,Transition to turbulence,Shape Design Optimization, ...

Application areas

Aerospace, Architecture, Automotive, Turbomachinery, Water and Wastewater...

Best practice guidelines

Automotive, Turbomachinery, Heat Transfer, ...

Validation and test cases

1D Cases, 2D Cases, 3D Cases, ...

The Open Source Section

Introduction

Codes

Free codes, Commercial codes, ...

Source code archive

Educational, Code snippets, ...

History of CFD

Historical perspective, Hall of fame, Famous achievements in CFD, ...

FAQ's

General CFD, Ansys, CONVERGE, Fluent, Phoenics, Siemens, CFD-Wiki, ...

Featured article

X-43A (Hyper - X) Mach 7 width 300px.jpg

Baldwin-Lomax model

The Baldwin-Lomax model is a classical algebraic turbulence model which is suitable for high-speed flows with thin attached boundary-layers, typically present in aerospace and turbomachinery applications. The Baldwin-Lomax model is not suitable for cases with large separated regions and significant curvature/rotation effects... more


This article is a good example of a description of a turbulence model. Validation and test cases is the current focus area of CFD-Wiki. So don't hesitate, write something about your favourite test or validation case today!

About CFD-Wiki

About, Introduction, Help us, Goals

Getting started

Getting started, Donate texts, Donated texts, Stubs, Sandbox, Wish List

Help & resources

Help, FAQ, Community portal, Forum

Policies and guidelines

Policy, Style guide

Administration

Admins, New admins, Guide, Blacklist

Small print

Copyrights, License, Disclaimer

Project news

1 August 2006: Monthly focus area August 2006: Validation and test cases.

1 May 2006: Monthly focus area May 2006: Turbulence modeling.

20 November 2005: CFD-Wiki launched to the public.

... [old news]


"I consider it the obligation of scientists and intellectuals to ensure that their ideas are made accessible and thus useful to society instead of being mere playthings for specialists." --Bjarne Stroustrup, from "Design and Evolution of C++"

My wiki