# # dimensionless_num.py # This file is part of ISOFT. # # Copyright 2017 Chris MacMackin <cmacmackin@gmail.com> # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, # MA 02110-1301, USA. # '''Contains routines for calculating various useful dimensionless numbers. ''' import numpy as np def froude(coef, U, drho, D): return coef * np.linalg.norm(U, axis=-1)/np.sqrt(drho*D)