dot-get_sh: Sh: Sherwood number

Description Usage Arguments Details Value Examples

Description

Sh: Sherwood number

Usage

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.get_sh(T_leaf, surface, pars, unitless)

Arguments

T_leaf

Leaf temperature in Kelvin

surface

Leaf surface (lower or upper)

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.

Details

The Sherwood number depends on a combination how much free or forced convection predominates. For mixed convection:

Sh = (a Re ^ b) ^ 3.5 + (c Gr ^ d) ^ 3.5) ^ (1 / 3.5)


Symbol R Description Units Default
a, b, c, d a, b, c, d empirical coefficients none calculated
Gr Gr Grashof number none calculated
Re Re Reynolds number none calculated

Value

A unitless number of class units

Examples

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library(tealeaves)

cs <- make_constants()
ep <- make_enviropar()
lp <- make_leafpar()

T_leaf <- set_units(298.15, K)

tealeaves:::.get_sh(T_leaf, "lower", c(cs, ep, lp), FALSE)

cdmuir/tealeaves documentation built on June 21, 2020, 2:32 a.m.