{"id":237447,"date":"2026-05-20T03:41:57","date_gmt":"2026-05-20T08:41:57","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/05\/overlooked-history-force-may-skew-particle-motion-by-up-to-60-in-shaken-fluids"},"modified":"2026-05-20T03:41:57","modified_gmt":"2026-05-20T08:41:57","slug":"overlooked-history-force-may-skew-particle-motion-by-up-to-60-in-shaken-fluids","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/05\/overlooked-history-force-may-skew-particle-motion-by-up-to-60-in-shaken-fluids","title":{"rendered":"Overlooked \u2018history force\u2019 may skew particle motion by up to 60% in shaken fluids"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/overlooked-history-force-may-skew-particle-motion-by-up-to-60-in-shaken-fluids.jpg\"><\/a><\/p>\n<p>Physicists at the University of Bayreuth have investigated the so-called Basset\u2013Boussinesq history force acting on particles in fluids. Due to the difficulty of calculating it, this force is often neglected\u2014a fact that Bayreuth doctoral researcher Frederik Gareis already identified as a secondary school pupil during a student research project with his supervisor. The researchers report their <a href=\"https:\/\/link.aps.org\/doi\/10.1103\/y1zd-lpyw\" target=\"_blank\">new findings<\/a> on the history force in Physical Review Fluids.<\/p>\n<p>When particles move in liquids or air with velocities that change over time, several forces act on them, including the often overlooked history force. It arises from the formation of vortices around accelerating particles in fluids. In this way, the surrounding fluid \u201cremembers\u201d previous particle motions and influences their subsequent movement.<\/p>\n<p>\u201cThe history force is often ignored because it is mathematically complex and makes calculations significantly more demanding. It is frequently unclear whether neglecting it leads to larger errors in modeling particle motion in fluids,\u201d says Frederik Gareis, a doctoral researcher at the Theoretical Physics I research group at the University of Bayreuth and first author of the study.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Physicists at the University of Bayreuth have investigated the so-called Basset\u2013Boussinesq history force acting on particles in fluids. Due to the difficulty of calculating it, this force is often neglected\u2014a fact that Bayreuth doctoral researcher Frederik Gareis already identified as a secondary school pupil during a student research project with his supervisor. The researchers report [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32,48],"tags":[],"class_list":["post-237447","post","type-post","status-publish","format-standard","hentry","category-education","category-particle-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/237447","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=237447"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/237447\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=237447"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=237447"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=237447"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}