TABLE OF CONTENTS Joseph R. Blandino [*] and Jonathan J. Miles [ ]
James Madison University, Harrisonburg, Virginia
Copyright 2005 by the authors. Published by American Institute of Aeronautics and Astronautics, Inc., with permission.
A element = area of a sail element
C = heat capacity
c = specific heat
E b = blackbody radiation per unit area
G = irradiance per unit area
K = thermal conductance
P = photon flux
Q = total heat
= radiant heat flux per unit area
= radiosity
R sun = solar radius
r = distance from Sun
T = temperature of object or membrane
T ? = temperature of background space
z element = thickness of the sail membrane for an element
? = density
? = absorptance
? = emittance
? 1 = sail Sun-facing side emittance
? 2 = sail shadowed side emittance
? ? = membrane emittance at a specific angle
? ? = total membrane emissivity at a specific angle
? = percent of radiant energy absorbed by detector
? = incident angle for radiation
? = wavelength
? = reflectance
? = Stefan Boltzman constant
? = transmittance
= pitch angle of sail element with respect to solar vector
? = roll angle of sail element with respect to solar vector
[*]Associate Professor, Integrated Science and Technology.
[ ]Professor, Integrated Science and Technology.
