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aerodynamic Aeronautics altitude angle approximate atmospheric bars calculated Center characteristics coefficient Concluded conductivity conical considered constant Continued coolant deflections determined direction distance distribution downstream effect efficiency equation exit experimental external flow failure field Figure flap flight frequency function given heat increase indicate inlet jet velocity limited load located LOWER m/sec mass flow maximum measured meters NASA noise Note nozzle observer obtained occurred operating Orbit overall ozone parameter performance plume porous presented pressure range ratio reference relative Report setting shown in figure solution sound pressure level Space speed SQRT X/C STATION stator STRT ION surface TECHNICAL temperature theory tunnel UPPER values valve wing
Page 29 - NASA Langley Research Center Hampton, Va. 23665 11. Contract or Grant No. 13. Type of Report and Period Covered 12. Sponsoring Agency Name and Address Technical Note National Aeronautics and Space Administration Washington, DC 20546 14.
Page 177 - The Knudsen number (Kn) is the ratio of the mean free path of the gas (X) to a characteristic length . This characteristic length may be a body dimension or a shock-layer thickness.