Outer Planet Entry Heating and Thermal ProtectionRaymond Viskanta |
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Page 193
... phenolic to intense continuous - wave laser radiation are presented . At a nominal peak intensity of 40 kW / cm2 , the penetration rate varies from 0.32 cm / sec for ATJ to 1.39 cm / sec for carbon phenolic , whereas at an intensity of ...
... phenolic to intense continuous - wave laser radiation are presented . At a nominal peak intensity of 40 kW / cm2 , the penetration rate varies from 0.32 cm / sec for ATJ to 1.39 cm / sec for carbon phenolic , whereas at an intensity of ...
Page 207
... phenolic may result from a complex thermal stress situation in the hole being bored in the material by the laser beam . A more one - dimensional irradiation of this material may result in measurably less spallation . The determination ...
... phenolic may result from a complex thermal stress situation in the hole being bored in the material by the laser beam . A more one - dimensional irradiation of this material may result in measurably less spallation . The determination ...
Page 231
... phenolic and ATJ graphite were con- ducted in the GPPF for exposure times of 2 to 5 sec . Surface recession and exposure time data for these tests are given in Table 1 . The geometry difference of the two test configurations results ...
... phenolic and ATJ graphite were con- ducted in the GPPF for exposure times of 2 to 5 sec . Surface recession and exposure time data for these tests are given in Table 1 . The geometry difference of the two test configurations results ...
Contents
Effects of Atmospheric Structure on Radiative Heating | 3 |
Radiative Flux Penetration through a Blown Shock Layer | 22 |
Approximate Inviscid Radiating Flowfield Analysis | 42 |
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Common terms and phrases
ablation absorption coefficient AIAA AIAA Journal AIAA Paper altitudes analysis angle of attack base blockage body surface boundary layer bow shock calculations carbon phenolic chemical chemical equilibrium computed configuration correlation distribution energy enthalpy entry conditions equilibrium experimental flow flowfield freestream graphite H₂ heat shield Heat Transfer heat-transfer hydrogen hyperboloid inertial entry angle intensity inviscid Jupiter Jupiter entry km/sec laminar laser mass loss mass transfer material mixture model atmospheres MW/m² NASA nominal nondimensional nonequilibrium number density obtained Outer Planet Entry parameters PRECURSOR EFFECT precursor heating precursor region predicted present pressure radiation radiative and convective radiative flux radiative heat flux radiative heating rates recession Reynolds number shock-layer shown in Fig silica solution species spectral spectral flux sphere-cone stagnation point stagnation-point temperature thermal thermochemical thermodynamic tion trajectory turbulent uncertainty variation velocity viscous shock-layer VSL3D wall