eprintid: 9531 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/95/31 datestamp: 2023-11-09 16:36:10 lastmod: 2023-11-09 16:36:10 status_changed: 2023-11-09 16:29:13 type: article metadata_visibility: show creators_name: Shah, S.M.H. creators_name: Mustaffa, Z. creators_name: Yusof, K.W. creators_name: Nor, M.F.M. title: Influence of forces on vehicle's instability in floodwaters ispublished: pub keywords: Critical current density (superconductivity); Drag; Floods; Friction; Hazards; Stability, Critical depth; Floodwaters; Flowing waters; Flume experiment; Frictional forces; Pushing forces; Vehicle instability; Vehicle stability, Vehicles note: cited By 8 abstract: Flood hazards to vehicle have become more frequent and noticeable in the recent years. Therefore, this paper aims at estimating the forces observed on a partially submerged vehicle in floodwater, namely frictional, buoyancy, lift and drag forces. An understanding of the relevant forces involved is necessary to attempt to characterize the instability thresholds of vehicles in floodwater flows. With that regards, a model vehicle with the scale ratio of 1:24 was used and a series of flume experiments were conducted. While determining the vertical pushing force, the influence of lift force was found insignificant due to sub-critical state of the flow. Moreover, the critical water depth at which the up-thrust force governed was observed when the water depth exceeded 0.042 m. Below critical depth, the vehicle stability governed unless the drag force imposed by the flowing water was lower than the frictional force between the tires and floodplain surface. © 2018 Ain Shams University date: 2018 publisher: Ain Shams University official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85056653652&doi=10.1016%2fj.asej.2018.01.001&partnerID=40&md5=733b8ce74867a4a7509888ad3fdb7740 id_number: 10.1016/j.asej.2018.01.001 full_text_status: none publication: Ain Shams Engineering Journal volume: 9 number: 4 pagerange: 3245-3258 refereed: TRUE issn: 20904479 citation: Shah, S.M.H. and Mustaffa, Z. and Yusof, K.W. and Nor, M.F.M. (2018) Influence of forces on vehicle's instability in floodwaters. Ain Shams Engineering Journal, 9 (4). pp. 3245-3258. ISSN 20904479