Ar: Archimedes number

Ar(T_leaf, pars, unitless = FALSE)

Arguments

T_leaf: Leaf temperature in Kelvin
pars: Concatenated parameters (leaf_par, enviro_par, and constants)
unitless: Logical. Should function use parameters with units? The function is faster when FALSE, but input must be in correct units or else results will be incorrect without any warning.

Value

unitless = TRUE: A unitless number of class numeric

unitless = FALSE: A unitless number of class units

Also returns Reynolds and Grashof numbers

Details

The Archimedes number is a dimensionless number that describes when free or forced convection dominates.

$$Ar = Gr / Re ^ 2$$

Symbol	R	Description	Units	Default
$Gr$	`Gr`	Grashof number	none	calculated
$Re$	`Re`	Reynolds number	none	calculated

Examples

cs <- make_constants()
ep <- make_enviropar()
lp <- make_leafpar()
pars <- c(cs, lp, ep)
T_leaf <- set_units(298.15, "K")

Ar(T_leaf, pars)
#>                Ar           Gr           Re
#> 1 0.001472543 [1] 245079.5 [1] 12900.89 [1]