waterprops: Functions to calculate water properties: density, specific...

In hydraulics: Basic Pipe and Open Channel Hydraulics

Functions to calculate water properties: density, specific weight, dynamic and kinematic viscosity, saturation vapor pressure, surface tension, and bulk modulus.

Description

This function calculates water properties that are used in other functions.

Usage

dvisc(T = NULL, units = NULL, ret_units = FALSE)

dens(T = NULL, units = NULL, ret_units = FALSE)

specwt(T = NULL, units = NULL, ret_units = FALSE)

kvisc(T = NULL, units = NULL, ret_units = FALSE)

svp(T = NULL, units = NULL, ret_units = FALSE)

surf_tension(T = NULL, units = NULL, ret_units = FALSE)

Ev(T = NULL, units = NULL, ret_units = FALSE)

Arguments

T	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
ret_units	If set to TRUE the value(s) returned are of class units with units attached to the value. [Default is FALSE]

Value

rho, the density of water for the dens function [kg/m^3 or slug/ft^3]

spwt, the specific weight of water for the specwt function [N/m^3 or lbf/ft^3]

mu, the dynamic viscosity of water for the dvisc function [N s/m^2 or lbf s/ft^2]

nu, the kinematic viscosity of water for the kvisc function [m^2/s or ft^2/s].

svp, the saturation vapor pressure of water for the svp function [N/m^2 or lbf/ft^2].

surf_tension, the surface tension of water for the surf_tension function [N/m or lbf/ft].

Ev, the bulk modulus of elasticity of water for the Ev function [N/m^2 or lbf/ft^2].

Author(s)

Ed Maurer

Examples

#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')

#Find saturation vapor pressure for water temperature of 10 C
vps = svp(T = 10, units = 'SI')

#Find surface tension for water temperature of 10 C
s_tens = surf_tension(T = 10, units = 'SI')

hydraulics documentation built on Dec. 7, 2022, 1:11 a.m.