🌐EnglishEnglishDeutschEspañolFrançaisItalianoРусскийفارسیहिन्दी中文日本語EntityQ1568363· pop 13· linked from 77 articlesHagen numberdimensionless number used in forced flow calculationsAvailable in 13 languagesEspañolFrançaisDeutsch中文日本語РусскийItalianoहिन्दीBosnianCatalanUkrainianConnectionshydraulicsEntitynumberEntityCategoriesDimensionless numbers of physics