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Title: From summit to seafloor : lifted weight as a function of altitude and depth
Authors : Steinegger, Rolf
Extent : 10
Publisher / Ed. Institution : ZHAW Zürcher Hochschule für Angewandte Wissenschaften
Publisher / Ed. Institution: Winterthur
Issue Date: 26-Apr-2017
License (according to publishing contract) : Not specified
Language : English
Subjects : Surfboard; Lift; Hydrofoil; Airfoil; Lifted weight
Subject (DDC) : 620: Engineering
Abstract: A comparison of lifted weight as a function of altitude and depth reveals big differences by a factor of about 3’000 in total from 11 km above sea level to 10 km below sea level, divided into factors of: ~   4 between summit and sea level, ~   400 between flying close to the ground and planing on water, ~   2 between planing on water and in a fully submerged state. The most dramatic changes are due to different fluids and levels of altitude. The most interesting sector to discuss lift is close to sea level: aircraft approaching the ground, plates planing on water and hydrofoils only barely submerged in water. There is one basic similarity across of these: Almost any shape, as long as it is not too thick, will work as an (air)foil and produce lift when the angle of attack is in the right range.
Departement: School of Engineering
Organisational Unit: Centre for Aviation (ZAV)
Publication type: Working Paper – Expertise – Study
DOI : 10.21256/zhaw-4058
Appears in Collections:Publikationen School of Engineering

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