NASA Technical Reports Server (NTRS) 19930090837: On improvement of air flow in wind tunnels
Book details
- Title
- NASA Technical Reports Server (NTRS) 19930090837: On improvement of air flow in wind tunnels
- Publication year listed
- 1928
- Format
- Public domain eBook
- Reading access
- Free online reader; no registration required
- Source record
- View on Archive.org
About this book
NASA Technical Reports Server (NTRS) 19930090837: On improvement of air flow in wind tunnels
Author: NASA Technical Reports Server (NTRS)
Year: 1928
The most important aerodynamical qualities that should be aimed at in wind tunnel design, are as follows: 1) constant and parallel direction of flow; 2) uniform velocity across all sections; 3) absence of turbulent motion; 4) constant velocity of flow. The above-mentioned qualities are all realized in a high degree in the Gottingen type of wind tunnel, with a parallel portion before the working section, the cross section of which is steadily reduced. It is shown in what follows, that the system can be applied to other wind tunnels, such as the N.P.L. or Eiffel type.
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