Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975aiaa.confq....n&link_type=abstract
American Institute of Aeronautics and Astronautics and American Geophysical Union, Conference on the Exploration of the Outer Pl
Astronomy and Astrophysics
Astronomy
Atmospheric Entry, Carbon Dioxide, Normal Shock Waves, Shock Wave Luminescence, Ultraviolet Radiation, Venus Atmosphere, Calibrating, Graphs (Charts), Nonequilibrium Radiation, Radiant Flux Density, Radiation Measurement, Radiative Heat Transfer, Shock Tubes, Vacuum Spectroscopy, Velocity Measurement
Scientific paper
Radiation intensity profiles behind incident normal shock waves in pure CO2 have been measured spectroscopically in the Langley Arc-Driven Shock Tube. These profiles, which were obtained for shock velocities between 9 and 13 km/sec and ambient densities corresponding to Venus altitudes between 100 and 80 km, were measured in the vacuum ultraviolet regime. Wavelengths of 127.7, 158.0, 177.5, and 195.0 nm were monitored simultaneously using a four-channel vacuum spectrograph equipped with sodium-salicylate-coated photomultipliers, thereby including the CO(4+) band system which is the most prominent radiator. Measured nonequilibrium overshoots are modeled to provide a means of estimating the effect of nonequilibrium radiation heating to the stagnation region of proposed aero-shells for Venusian entry. These results indicate a significant increase in radiative heating due to nonequilibrium effects. The measurements are believed to represent the most accurate data available on the effect of nonequilibrium radiative heat transfer for Venus entry. This accuracy is primarily due to improved spectrographic instrumentation, which is discussed in some detail regarding its application in related studies.
No associations
LandOfFree
An experimental study of ultraviolet radiation behind incident normal shock waves in CO2 at Venusian entry speeds does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with An experimental study of ultraviolet radiation behind incident normal shock waves in CO2 at Venusian entry speeds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An experimental study of ultraviolet radiation behind incident normal shock waves in CO2 at Venusian entry speeds will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-909061