Thermophysics and Thermal ControlRaymond Viskanta |
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Page 83
... dimensionless contact resistance vs the dimensionless surface roughness for several values of the dimensionless asperity slope are obtain- ed for some selected dimensionless hardness values . = area of the flat = contact area ...
... dimensionless contact resistance vs the dimensionless surface roughness for several values of the dimensionless asperity slope are obtain- ed for some selected dimensionless hardness values . = area of the flat = contact area ...
Page 84
... dimensionless microcontact radius a / rμ - - physical parameter ( 1 − v2 ) / E1 + ( 1 − v2 ) / E2 1 dimensionless cell half - width b / rμ = dimensionless separation Y / o√2 = thermal conductivity of contacting solids 1 and 2 = λ ...
... dimensionless microcontact radius a / rμ - - physical parameter ( 1 − v2 ) / E1 + ( 1 − v2 ) / E2 1 dimensionless cell half - width b / rμ = dimensionless separation Y / o√2 = thermal conductivity of contacting solids 1 and 2 = λ ...
Page 243
... dimensionless distance along fin surface absorptance dimensionless parameter = { [ 2L2 ( h © + h -1 , 2 , r dimensionless parameter = ( 2hpap112 ) / kt surface emittance angle between fin and image = angle between fins = = Φς = Ꮎ ...
... dimensionless distance along fin surface absorptance dimensionless parameter = { [ 2L2 ( h © + h -1 , 2 , r dimensionless parameter = ( 2hpap112 ) / kt surface emittance angle between fin and image = angle between fins = = Φς = Ꮎ ...
Contents
Thermal Radiative Properties of Solar Sail Film Materials | 3 |
Infrared Reflectance and Refractive Index of Condensed Gas Films | 22 |
FarInfrared Properties of Baffle Coating Materials | 39 |
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AIAA aluminum analysis angle of attack Astronautics black epoxy paint blanket boundary calorimeter coating coefficient configuration constriction resistance contact area convection cooled correlation cryodeposits cryogen deposit thickness detector determined developed dimensionless dissimilar metal distribution emittance Engineering epoxy equation evaluated experimental film flight frit groove heat flow heat flux heat leak heat loss Heat Transfer heat-transfer heater increase insulation system integral integrating sphere Kapton laser load material MAWD measured microcontacts microspheres MLI system multilayer insulation NASA nodes obtained orbit parameters predicted presented pressure radiation radiative ratio refraction refractive index REYNOLDS ANALOGY sail sample shield shown in Fig solar absorptance solar sail solid Space spacecraft spectral reflectance sphere stainless steel substrate surface Table tank temperature thermal conductivity thermal contact conductance thermal control thermal performance thermocouples Thermophysics tion titania vacuum values view angle wall wavelength ZIRCALOY