プラントル数

ja

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プラントル数

Quality:

Prandtl number - quotient of kinematic viscosity and thermal diffusivity for a fluid. Article “プラントル数” in Japanese Wikipedia has 6.8 points for quality (as of July 1, 2025). The article contains 1 references and 5 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 0.36 points.

This article has the best quality in English Wikipedia. Also, this article is the most popular in that (Japanese) language version.

Since the creation of article “プラントル数”, its content was written by 19 registered users of Japanese Wikipedia and edited by 491 registered Wikipedia users in all languages.

The article is cited 82 times in Japanese Wikipedia and cited 1144 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (Japanese): #16333 in July 2013
  • Global: #8854 in February 2012

The highest popularity rank from 2008:

  • Local (Japanese): #53626 in July 2014
  • Global: #39646 in April 2015

There are 28 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)
Prandtl number
30.355
2Ukrainian (uk)
Число Прандтля
26.1604
3Bulgarian (bg)
Критерий на Прантъл
23.2867
4Arabic (ar)
عدد برانتل
22.1078
5German (de)
Prandtl-Zahl
19.5267
6Russian (ru)
Число Прандтля
16.4834
7French (fr)
Nombre de Prandtl
12.5435
8Italian (it)
Numero di Prandtl
11.069
9Portuguese (pt)
Número de Prandtl
10.1613
10Spanish (es)
Número de Prandtl
8.3131
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 "プラントル数" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Prandtl number
2 659 033
2German (de)
Prandtl-Zahl
535 490
3Japanese (ja)
プラントル数
416 220
4Spanish (es)
Número de Prandtl
372 393
5French (fr)
Nombre de Prandtl
324 497
6Russian (ru)
Число Прандтля
256 525
7Italian (it)
Numero di Prandtl
252 993
8Chinese (zh)
普朗特数
135 843
9Polish (pl)
Liczba Prandtla
124 637
10Portuguese (pt)
Número de Prandtl
124 509
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 "プラントル数" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Prandtl number
5 779
2German (de)
Prandtl-Zahl
1 098
3Japanese (ja)
プラントル数
945
4French (fr)
Nombre de Prandtl
937
5Italian (it)
Numero di Prandtl
806
6Russian (ru)
Число Прандтля
717
7Chinese (zh)
普朗特数
527
8Korean (ko)
프란틀 수
415
9Spanish (es)
Número de Prandtl
381
10Polish (pl)
Liczba Prandtla
299
More...

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

The highest AI

Language versions of the article "プラントル数" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Prandtl number
79
2German (de)
Prandtl-Zahl
65
3Italian (it)
Numero di Prandtl
43
4French (fr)
Nombre de Prandtl
42
5Dutch (nl)
Getal van Prandtl
31
6Polish (pl)
Liczba Prandtla
22
7Japanese (ja)
プラントル数
19
8Russian (ru)
Число Прандтля
19
9Spanish (es)
Número de Prandtl
18
10Persian (fa)
عدد پرنتل
18
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 "プラントル数" with the highest AI in June 2025
#LanguageAI awardRelative AI
1Arabic (ar)
عدد برانتل
1
2Bulgarian (bg)
Критерий на Прантъл
0
3Catalan (ca)
Nombre de Prandtl
0
4Czech (cs)
Prandtlovo číslo
0
5German (de)
Prandtl-Zahl
0
6English (en)
Prandtl number
0
7Spanish (es)
Número de Prandtl
0
8Basque (eu)
Prandtl zenbakia
0
9Persian (fa)
عدد پرنتل
0
10Finnish (fi)
Prandtlin luku
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 "プラントル数" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1French (fr)
Nombre de Prandtl
165
2English (en)
Prandtl number
120
3Catalan (ca)
Nombre de Prandtl
106
4Russian (ru)
Число Прандтля
88
5Japanese (ja)
プラントル数
82
6Persian (fa)
عدد پرنتل
70
7Chinese (zh)
普朗特数
65
8Italian (it)
Numero di Prandtl
64
9Ukrainian (uk)
Число Прандтля
64
10Turkish (tr)
Prandtl sayısı
61
More...

Scores

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

Quality measures

Interwikis

#LanguageValue
arArabic
عدد برانتل
bgBulgarian
Критерий на Прантъл
caCatalan
Nombre de Prandtl
csCzech
Prandtlovo číslo
deGerman
Prandtl-Zahl
enEnglish
Prandtl number
esSpanish
Número de Prandtl
euBasque
Prandtl zenbakia
faPersian
عدد پرنتل
fiFinnish
Prandtlin luku
frFrench
Nombre de Prandtl
glGalician
Número de Prandtl
heHebrew
מספר פרנטל
hiHindi
प्रांटल संख्या
hyArmenian
Պրանդտլի թիվ
itItalian
Numero di Prandtl
jaJapanese
プラントル数
koKorean
프란틀 수
nlDutch
Getal van Prandtl
nnNorwegian (Nynorsk)
Prandtl-tal
plPolish
Liczba Prandtla
ptPortuguese
Número de Prandtl
ruRussian
Число Прандтля
skSlovak
Prandtlovo číslo
thThai
เลขพรันด์เทิล
trTurkish
Prandtl sayısı
ukUkrainian
Число Прандтля
zhChinese
普朗特数

Popularity rank trends

Best Rank Japanese:
#53626
07.2014
Global:
#39646
04.2015

AI rank trends

Best Rank Japanese:
#16333
07.2013
Global:
#8854
02.2012

Global AI rank history

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Prandtl number from Wikipedia articles about Nusselt number for heat transfer, Rayleigh number, Heat transfer coefficient, Ludwig Prandtl and Péclet number for heat transfer. Whereas reading the article about Prandtl number people most often go to Wikipedia articles on Viscosity, Thermal diffusivity, Ludwig Prandtl, Nusselt number for heat transfer and Thermal conductivity.

Cumulative results of quality and popularity of the Wikipedia article

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

News from 16 March 2026

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In Japanese Wikipedia the most popular articles on that day were: 小泉八雲, 同志社国際中学校・高等学校, 若嶋津六夫, 伊藤大海 (野球), 高橋成美, 井端弘和, 太田裕二, ワールド・ベースボール・クラシック, 高田みづえ, 尾崎将司.

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