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What should I do if I have questions, comments or suggestions about Thermal-FluidsPedia?

For general questions, comments, or suggestions about Thermal-FluidsPedia, please email the webmaster at If you have have any questions, comments or suggestions on a specific article, you can also add it to the discussion page in the reference article in addition to email the webmaster at

Can I post description of products and services of our company in Thermal-FluidsPedia?

In order to make sure that all articles in Thermal-FluidsPedia are written in a neutral point of view without bias, it is the policy of Thermal-FluidsPedia to prohibit any advertisement in any of its article. Only descriptions from a neutral point view are acceptable. Any article that is considered bias or promoting a product will be deleted by the administrators.

What should I do if I found spam in Thermal-FluidsPedia?

If you are an editor, please delete the spam and notify the administrator at If you are not an editor, please notify the administrator at and the administrator will delete the spam. Please make sure to include a link to the page on which you found the spam.

If any editor is found to post spam to Thermal-FluidsPedia, he/she will lose the privilege to post new article and modify the existing articles in Thermal-FluidsPedia.

What should I do if I found an article in Thermal-FluidsPedia is vandalized?

If you are an editor, please restore the content of the article and notify the administrator at If you are not an editor, please notify the administrator at and the administrator will restore the content of the article. Please make sure to include a link to the page that is vandalized. The administrators will ban the offending editors from posting new articles or modifying the existing articles in Thermal-FluidsPedia.

How to create a new article and where my new article will be shown?

In order to maintain a stable structure for Thermal-FluidsPedia, the Main Page of the Thermal-FluidsPedia and the list of topics for each branch of thermal and fluid science and engineering (e.g., Heat and Mass Transfer, Thermodynamics, etc.) are locked from any change. To suggest any change on the pages in these two levels, please email The next level (e.g., Heat Conduction under Heat and Mass Transfer) is not locked and you are free to add any topics. To create a new article, please locate where you want your article to appear (you can use related topics if it is more appropriate) in the Thermal-FluidsPedia. If your article is not listed under any branch or subject area, it becomes an orphan and the only way it can be found is to use the search engine.


What is the copyright policy of Thermal-FluidsPedia for editors (contributors)?

Please refer to the Thermal-FluidsPedia:Copyrights page for full information on our copyright policy.

If a copyright violation is found in a Thermal-FluidsPedia article, what should I do?

You can bring up the issue of suspected copyright violation in the discussion page and other editors may voice their opinion. Please also notify the administrator at immediately. Please make sure to include the proof of the violation and a link to the page that you suspect for copyright violation. The administrators will investigate the possible violation and, if confirmed, take proper actions to protect the right of the copyright holder.

I want to refer to Thermal-FluidsPedia in my book or article, what is the correct format?

The following format should be used if for example, an article in melting and solidification is referenced:

Format and Guidelines

How can I post my article written in Microsoft Words to Thermal-FluidsPedia?

Thermal-FluidsPedia uses MediaWiki Markup language. If you have Microsoft Office 2007 or above, you can follow the following procedure to save your Microsoft Word 2007 straight into MediaWiki.

Download the "Microsoft Office Word Add-in For MediaWiki" from Microsoft Download Center, and install it.
Save the document as "MediaWiki (*.txt)" file type.
Copy the text from the (*.txt) file into your Wiki page

How to insert a table into my article?

You can use the "Insert a table" button (second from the right) in the MediaWiki edit tool bar (see image below) to add the table. More information about the format of tables can be find at


How can I post a table prepared using Microsoft Words to Thermal-FluidsPedia?

  • If there is only one line in any cells, you can directly copy your table to Excel to Wiki Table Converter to obtain MediaWiki markup of the table.
  • If there are multiple lines in one cell, you need to copy your table to Microsoft Excel first and then copy your table from Excel to Excel to Wiki Table Converter to obtain MediaWiki markup of the table.

If you have subscripts or superscripts in your table, they will not be preserved in the above procedure and you will need to manually change them. If you have picture in any cell, you will need to insert them manually using "Insert a picture gallery" button in the wiki editor.

How to type equations in my article?

If you already prepared your article in Microsoft Words and the equations were typed using Microsoft Equation Editor or Mathtype, the equations should be converted to Latex format before it can be used in Thermal-FluidsPedia since Thermal-FluidsPedia is based on LaTex. This can be easily done by using the "Convert Equation" function of Mathtype. Please make sure to select "“Wikipedia – Texvc" under "Text using MathType translator" (see below). If you select any other options, the converted equations may not be correctly displayed in Thermal-FluidsPedia.

image: MathTypeConvertEquation.png

For more information about converting equations to Latex, please visit the website of Mathtype.

However, if you prefer to use latex directly, which is strongly recommended, see the exapmle below:
To display the following equations:
\vartheta (x,t) = {{2A} \over {\sqrt \pi  }}\int_{x/\sqrt {4\alpha t} }^\infty  {\cos \left[ {\omega \left( {t - {{x^2 } \over {4\alpha \xi ^2 }}} \right) - \beta } \right]\exp ( - \xi ^2 )d\xi }
the following code should be used:

<math>\vartheta (x,t) = {{2A} \over {\sqrt \pi }}\int_{x/\sqrt {4\alpha t} }^\infty {\cos \left[ {\omega \left( {t - {{x^2 } \over {4\alpha \xi ^2 }}} \right) - \beta } \right]\exp ( - \xi ^2 )d\xi }</math>

i.e., the math markup should be typed inside <math> ... </math>.

How to type subscripts or superscripts?

The subscripts and superscripts can be typed using html codes. For example, to display x2, one can type x<sub>2</sub>. Similarly, x<sup>2</sup> will yield x2.

How to type Greek letters?

The Greek letters can be either generated using the code in the following table or directly copied the symbol in the text.

&delta;δ &epsilon;ε &zeta;ζ
&eta;η &theta; θ&iota;ι
&kappa;κ &lambda;λ &mu;μ
&pi;π &rho;ρ &sigma;σ
&sigmaf;ς&tau;τ &upsilon;υ
&phi;φ &chi;χ &psi;ψ
&omega;ω&Gamma;Γ &Delta;Δ
&Theta; Θ &Lambda; Λ &Xi; Ξ
&Pi; Π&Sigma;Σ &Phi;Φ
&Psi;Ψ &Omega;Ω&infin;

How to insert pictures or figures to an article?

Before uploading upload any pictures or figures into Thermal-FluidsPedia, it is imperative to make sure that you own the copyright, which means either you draw it or you photographed it. You must release the figure or picture under the Creative Commons Attribution/Share-alike license. Anybody can use, alter, and redistribute your figures or picture for any purpose, including commercial use. You cannot copy or reuse any image from the internet unless it is under a similar free license. If you do not own the copyright and/or the image is created by someone else, please do not use it in any Thermal-FluidsPedia article.

If are ready to share your figures or pictures with us, please login first and click here to upload the image.

If you want to use a image from a Microsoft Word file or PDF file, please refer to Upload image from document.