Free surface

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Free surface

Quality:

Free surface - surface of a fluid that is subject to constant perpendicular stress of pressures in equilibrium and zero parallel shear stress; surface not created by the container. Article "Free surface" in English Wikipedia has 36.2 points for quality (as of July 1, 2025). The article contains 22 references and 6 sections.

In this language version of Wikipedia the article has the best quality. Also, this article is the most popular in that language version.

Since the creation of article "Free surface", its content was written by 47 registered users of English Wikipedia and edited by 149 registered Wikipedia users in all languages.

The article is cited 81 times in English Wikipedia and cited 276 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #47886 in December 2007
  • Global: #98339 in December 2007

The highest popularity rank from 2008:

  • Local (English): #59471 in September 2014
  • Global: #110544 in September 2014

There are 14 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

Languages with the highest quality

#LanguageQuality gradeQuality score
1English (en)
Free surface
36.1933
2Turkish (tr)
Serbest yüzey
33.4392
3Spanish (es)
Superficie libre
30.347
4Persian (fa)
سطح آزاد
25.0011
5Chinese (zh)
自由表面
24.0574
6Italian (it)
Pelo libero
18.7131
7Finnish (fi)
Vapaa pinta
17.295
8Russian (ru)
Свободная поверхность
16.7094
9Arabic (ar)
سطح حر
9.0762
10German (de)
Freie Oberfläche (Strömungslehre)
3.5323
More...

The following table shows the most popular language versions of the article.

Most popular in all the time

The most popular language versions of the article "Free surface" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Free surface
448 910
2Italian (it)
Pelo libero
93 421
3Polish (pl)
Powierzchnia swobodna
82 465
4Russian (ru)
Свободная поверхность
30 564
5Spanish (es)
Superficie libre
21 588
6Chinese (zh)
自由表面
20 792
7German (de)
Freie Oberfläche (Strömungslehre)
14 761
8Vietnamese (vi)
Mặt thoáng
12 449
9Persian (fa)
سطح آزاد
12 230
10Swedish (sv)
Fri vattenyta
6 774
More...

The following table shows the language versions of the article with the highest popularity in the last month.

Most popular in June 2025

The most popular language versions of the article "Free surface" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Free surface
1 358
2Italian (it)
Pelo libero
134
3Russian (ru)
Свободная поверхность
102
4Spanish (es)
Superficie libre
54
5German (de)
Freie Oberfläche (Strömungslehre)
37
6Polish (pl)
Powierzchnia swobodna
34
7Turkish (tr)
Serbest yüzey
32
8Chinese (zh)
自由表面
32
9Arabic (ar)
سطح حر
15
10Vietnamese (vi)
Mặt thoáng
12
More...

The following table shows the language versions of the article with the highest Authors’ Interest.

The highest AI

Language versions of the article "Free surface" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Free surface
47
2Italian (it)
Pelo libero
26
3German (de)
Freie Oberfläche (Strömungslehre)
17
4Turkish (tr)
Serbest yüzey
11
5Polish (pl)
Powierzchnia swobodna
10
6Swedish (sv)
Fri vattenyta
10
7Russian (ru)
Свободная поверхность
8
8Spanish (es)
Superficie libre
5
9Vietnamese (vi)
Mặt thoáng
5
10Chinese (zh)
自由表面
5
More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

The highest AI in June 2025

Language versions of the article "Free surface" with the highest AI in June 2025
#LanguageAI awardRelative AI
1Arabic (ar)
سطح حر
0
2German (de)
Freie Oberfläche (Strömungslehre)
0
3English (en)
Free surface
0
4Spanish (es)
Superficie libre
0
5Estonian (et)
Vabapind
0
6Persian (fa)
سطح آزاد
0
7Finnish (fi)
Vapaa pinta
0
8Italian (it)
Pelo libero
0
9Polish (pl)
Powierzchnia swobodna
0
10Russian (ru)
Свободная поверхность
0
More...

The following table shows the language versions of the article with the highest number of citations.

The highest CI

Language versions of the article "Free surface" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Free surface
81
2Italian (it)
Pelo libero
56
3Persian (fa)
سطح آزاد
47
4German (de)
Freie Oberfläche (Strömungslehre)
21
5Russian (ru)
Свободная поверхность
12
6Swedish (sv)
Fri vattenyta
12
7Spanish (es)
Superficie libre
11
8Estonian (et)
Vabapind
11
9Polish (pl)
Powierzchnia swobodna
8
10Chinese (zh)
自由表面
6
More...

Scores

Estimated value for Wikipedia:
English:
Global:
Popularity in June 2025:
English:
Global:
Popularity in all years:
English:
Global:
Authors in June 2025:
English:
Global:
Registered authors in all years:
English:
Global:
Citations:
English:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
سطح حر
deGerman
Freie Oberfläche (Strömungslehre)
enEnglish
Free surface
esSpanish
Superficie libre
etEstonian
Vabapind
faPersian
سطح آزاد
fiFinnish
Vapaa pinta
itItalian
Pelo libero
plPolish
Powierzchnia swobodna
ruRussian
Свободная поверхность
svSwedish
Fri vattenyta
trTurkish
Serbest yüzey
viVietnamese
Mặt thoáng
zhChinese
自由表面

Popularity rank trends

Best Rank English:
#59471
09.2014
Global:
#110544
09.2014

AI rank trends

Best Rank English:
#47886
12.2007
Global:
#98339
12.2007

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Free surface from Wikipedia articles about Drop, Wind wave, Cave diving, Sea level and Sea state. Whereas reading the article about Free surface people most often go to Wikipedia articles on Shear stress, Free surface effect, Body of water, Surface and Interface.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 12 August 2025

On 12 August 2025 in multilingual Wikipedia, Internet users most often read articles on the following topics: Cristiano Ronaldo, Wednesday, Georgina Rodríguez, ChatGPT, Weapons, Jenna Ortega, deaths in 2025, Taylor Swift, Miguel Uribe Turbay, 2025–26 UEFA Champions League.

In English Wikipedia the most popular articles on that day were: Weapons (2025 film), Danielle Spencer (American actress), Cristiano Ronaldo, Deaths in 2025, Taylor Swift, Wednesday (TV series), Superman (2025 film), Georgina Rodríguez, Coolie (2025 film), The Fantastic Four: First Steps.

About WikiRank

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information