hydraulics (version 0.2.0)

waterprops: Functions to calculate water properties: density, dynamic and kinematic viscosity

Description

This function calculates the Darcy-Weisbach friction factor and is only provided in this package for use with water in circular pipes while the equation is technically valid for any liquid. As with many parts of this package, techniques and formatting were drawn from Irucka Embry's iemisc package, which includes some methods with similar functionality. function(ks,V,D,nu)

Usage

dvisc(T = NULL, units = c("SI", "Eng"))
dens(T = NULL, units = c("SI", "Eng"))
kvisc(T = NULL, units = c("SI", "Eng"))

Arguments

T

numeric vector that contains the water temperature [C or F]

units

character vector that contains the system of units [options are SI for International System of Units and Eng for English (US customary) units. This is used for compatibility with iemisc package

Value

rho, the density of water for the dens function [kg/m3 or slug/ft3].

mu, the dynamic viscosity of water for the dvisc function [Pa-s (N s m^-2) or lbf s ft^-2].

nu, the kinematic viscosity of water for the kvisc function [m2 s^-1 or ft^2 s^-1].

Examples

# NOT RUN {
#Find kinematic viscocity for water temperature of 55 F
nu = kvisc(T = 55, units = 'Eng')

#Find kinematic viscocity assuming default water temperature of 68 F
nu = kvisc(units = 'Eng')

#Find water density for water temperature of 25 C
rho = dens(T = 25, units = 'SI')

# }