ThermodynamicsのA-Zガイド、熱&アンプ、質量移動、流体工学
English Русский 中文 Português Español Français Deutsch 概要 編集委員会 連絡先 アクセス Begell House
View in A-Z Index

Froude number, Fr, is a dimensionless group which occurs frequently in the study of hydraulic phenomena involving a free surface.

where u is velocity, g acceleration due to gravity and L height. It represents the ratio of momentum force to gravitational force.

For physical modeling, for example, in naval architecture, Froude number is maintained constant by reducing the liquid velocity in the model in proportion to the square root of the linear dimension.

Often the term Froude number is used for the ratio u/(gL)1/2. This velocity ratio is also called Boussinesq Number.

表示回数: 25774 記事追加日: 2 February 2011 記事最終修正日: 14 February 2011 ©著作権 2010-2021 トップへ戻る
A-Z索引 著者/編集者 意味マップ ビジュアルギャラリー 寄稿 Guest