🌐EnglishEnglishDeutschFrançaisItalianoPolski中文EntityQ1794809· pop 5· linked from 13 articlesflow coefficientmeasure of a device's efficiency at allowing fluid flowAvailable in 5 languagesDeutsch中文ItalianoPolskivia Wikidata sitelinks · CC0ConnectionsfluidEntityviscosityEntityCategoriesFluid dynamics