\n Read more <\/a>\n <\/div>\n <\/div>\n\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n","protected":false},"excerpt":{"rendered":"The article presents explicit formulas used to calculate the Darcy factor and examines their accuracy and applicability in various operating conditions, i.e., at different values of Reynolds number and roughness. The obtained results were compared with those obtained from the commonly recommended Colebrook-White equation. Subsequently,
\na comparative analysis was conducted using indicators such as mean error, relative error, and maximum relative error. The Colebrook-White equation cannot be transformed into explicit form, requiring an iterative solution. Convergence of the linear resistance coefficient at a level lower than 0.1% typically requires at least 6 approximations. Ultimately, it was found that many available approximations of the Colebrook-White equation are highly accurate.<\/p>\n","protected":false},"featured_media":0,"parent":0,"menu_order":0,"template":"","meta":[],"tags":[4320,4321,4322,4300],"tematyka":[1143],"class_list":["post-21719","artykul","type-artykul","status-publish","hentry","tag-colebrook-white-equation","tag-darcy-friction-factor","tag-reynolds-number","tag-roughness","tematyka-cold-and-hot-water-and-heating-systems","has-post-title","has-post-date","has-post-category","has-post-tag","has-post-comment","has-post-author",""],"ptb_metabox":{"ptb_artykul_text_1":["ROBERT MA\u0143KO"],"ptb_artykul_text_2":"10.36119\/15.2024.6.3","ptb_artykul_numer_miesi_cznika":"06\/2024 Instal pp.16-23","ptb_artykul_info_autor":"Dr in\u017c. Robert Ma\u0144ko, https:\/\/orcid.org: 0000-0001-5592-7709 \u2013 Zachodniopomorski Uniwersytet Technologiczny w Szczecinie, Wydzia\u0142 Budownictwa i In\u017cynierii \u015arodowiska. West Pomeranian University of Technology in Szczecin, Faculty of Civil and Environmental Engineering. Corresponding Author: Robert.Manko@zut.edu.pl","ptb_artykul_orcid":["0000-0001-5592-7709"]},"ptb_taxonomy":{"post_tag":[{"term_id":4320,"name":"Colebrook-White equation","slug":"colebrook-white-equation","term_group":0,"term_taxonomy_id":4320,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":4321,"name":"Darcy friction factor","slug":"darcy-friction-factor","term_group":0,"term_taxonomy_id":4321,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":4322,"name":"Reynolds number","slug":"reynolds-number","term_group":0,"term_taxonomy_id":4322,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"},{"term_id":4300,"name":"roughness","slug":"roughness","term_group":0,"term_taxonomy_id":4300,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"}],"tematyka":[{"term_id":1143,"name":"Cold and hot water and heating systems","slug":"cold-and-hot-water-and-heating-systems","term_group":0,"term_taxonomy_id":1143,"taxonomy":"tematyka","description":"","parent":0,"count":37,"filter":"raw"}]},"ptb_featured_image":null,"builder_content":" Read more <\/a>","_links":{"self":[{"href":"https:\/\/informacjainstal.com.pl\/en\/wp-json\/wp\/v2\/artykul\/21719","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/informacjainstal.com.pl\/en\/wp-json\/wp\/v2\/artykul"}],"about":[{"href":"https:\/\/informacjainstal.com.pl\/en\/wp-json\/wp\/v2\/types\/artykul"}],"wp:attachment":[{"href":"https:\/\/informacjainstal.com.pl\/en\/wp-json\/wp\/v2\/media?parent=21719"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/informacjainstal.com.pl\/en\/wp-json\/wp\/v2\/tags?post=21719"},{"taxonomy":"tematyka","embeddable":true,"href":"https:\/\/informacjainstal.com.pl\/en\/wp-json\/wp\/v2\/tematyka?post=21719"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}