GrayLambertSurfaceRadiationBase

This is a base class for user objects that provide interfaces for getting radiation quantities for radiative exchange between opaque, gray, diffuse surfaces, which are averaged over the requested surface:

Interface	Description	SI Units	Symbol
getSurfaceIrradiation(id)	Irradiation	W/m $var element = document.getElementById("moose-equation-c62ebb55-d1a0-40b2-a1aa-39e01ac6eab4");katex.render("^2", element, {displayMode:false,throwOnError:false,macros:{"\\eqc":"\\,,","\\eqp":"\\,.","\\pd":"\\frac{\\partial #1}{\\partial #2}","\\pr":"\\left(#1\\right)","\\ddt":"\\frac{d #1}{d t}"}});$	$var element = document.getElementById("moose-equation-c22921bc-f1ef-41e0-bab6-47973639640a");katex.render("H_i", element, {displayMode:false,throwOnError:false,macros:{"\\eqc":"\\,,","\\eqp":"\\,.","\\pd":"\\frac{\\partial #1}{\\partial #2}","\\pr":"\\left(#1\\right)","\\ddt":"\\frac{d #1}{d t}"}});$
getSurfaceHeatFluxDensity(id)	Heat flux	W/m $var element = document.getElementById("moose-equation-b6ca514b-1b7f-43d7-8c01-660c98fe3829");katex.render("^2", element, {displayMode:false,throwOnError:false,macros:{"\\eqc":"\\,,","\\eqp":"\\,.","\\pd":"\\frac{\\partial #1}{\\partial #2}","\\pr":"\\left(#1\\right)","\\ddt":"\\frac{d #1}{d t}"}});$	$var element = document.getElementById("moose-equation-055cf618-a3ab-4e1b-a5de-3cec8a2d2878");katex.render("q_i", element, {displayMode:false,throwOnError:false,macros:{"\\eqc":"\\,,","\\eqp":"\\,.","\\pd":"\\frac{\\partial #1}{\\partial #2}","\\pr":"\\left(#1\\right)","\\ddt":"\\frac{d #1}{d t}"}});$
getSurfaceTemperature(id)	Temperature	K	$var element = document.getElementById("moose-equation-05af7e4b-f425-404a-b6b1-2a5d8b2a758d");katex.render("T_i", element, {displayMode:false,throwOnError:false,macros:{"\\eqc":"\\,,","\\eqp":"\\,.","\\pd":"\\frac{\\partial #1}{\\partial #2}","\\pr":"\\left(#1\\right)","\\ddt":"\\frac{d #1}{d t}"}});$
getSurfaceRadiosity(id)	Radiosity	W/m $var element = document.getElementById("moose-equation-a39355da-25bc-45fb-82de-29a04c3cc365");katex.render("^2", element, {displayMode:false,throwOnError:false,macros:{"\\eqc":"\\,,","\\eqp":"\\,.","\\pd":"\\frac{\\partial #1}{\\partial #2}","\\pr":"\\left(#1\\right)","\\ddt":"\\frac{d #1}{d t}"}});$	$var element = document.getElementById("moose-equation-a6d40cb8-ad79-4aa3-857d-d5b3731c8171");katex.render("J_i", element, {displayMode:false,throwOnError:false,macros:{"\\eqc":"\\,,","\\eqp":"\\,.","\\pd":"\\frac{\\partial #1}{\\partial #2}","\\pr":"\\left(#1\\right)","\\ddt":"\\frac{d #1}{d t}"}});$
getSurfaceEmissivity(id)	Emissivity	-	$var element = document.getElementById("moose-equation-bb359d75-99af-48c9-850f-5231ddc8b239");katex.render("\\epsilon_i", element, {displayMode:false,throwOnError:false,macros:{"\\eqc":"\\,,","\\eqp":"\\,.","\\pd":"\\frac{\\partial #1}{\\partial #2}","\\pr":"\\left(#1\\right)","\\ddt":"\\frac{d #1}{d t}"}});$
getViewFactor(from_id, to_id)	-	$var element = document.getElementById("moose-equation-2faba29b-05ee-4fc0-96c7-e950b1df6113");katex.render("F_{i,j}", element, {displayMode:false,throwOnError:false,macros:{"\\eqc":"\\,,","\\eqp":"\\,.","\\pd":"\\frac{\\partial #1}{\\partial #2}","\\pr":"\\left(#1\\right)","\\ddt":"\\frac{d #1}{d t}"}});$