An Analysis of Initial Static Pressure Probe Measurements in a Low-density Hypervelocity Wind Tunnel PDF Download
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Author: David E. Boylan Publisher: ISBN: Category : Boundary layer Languages : en Pages : 22
Book Description
An initial experimental program was previously conducted to study the problems in using static pressure probes for flow calibration purposes in low- density, hypervelocity wind tunnels with continuous flow. This data is reviewed in the light of more recent data on thermal transpiration. Results indicate that such probes may be used for what might be termed secondary calibrations, but care is required in interpreting the results. The present experiment yielded data which are compared to static pressures calculated from impact- pressure probe calibrations.
Author: David E. Boylan Publisher: ISBN: Category : Boundary layer Languages : en Pages : 22
Book Description
An initial experimental program was previously conducted to study the problems in using static pressure probes for flow calibration purposes in low- density, hypervelocity wind tunnels with continuous flow. This data is reviewed in the light of more recent data on thermal transpiration. Results indicate that such probes may be used for what might be termed secondary calibrations, but care is required in interpreting the results. The present experiment yielded data which are compared to static pressures calculated from impact- pressure probe calibrations.
Author: J. Leith Potter Publisher: ISBN: Category : Air flow Languages : en Pages : 1
Book Description
A small, low-density, hypervelocity, continuous wind tunnel operating at total temperatures from 2000 to 4000 K is described, and initial experiments designed to determine the characteristics of the flow are discussed. Effects of low Reynolds numbers on impact-pressure probes and static-pressure probes are shown. Preliminary work with a probe for measuring local mass-flow rate is outlined, and results are shown to be in agreement with impact and static pressure measurements. Axial and transverse surveys of flow in the nozzle are presented to illustrate the extent of boundary-layer growth and the useable core of flow. A diffuser is proved to be advantageous, even though very low Reynolds numbers are typical of the tunnel. A comparison of data on drag of spheres, including measurements from the new wind tunnel, is presented. (Author).
Author: United States. Department of Commerce. Office of Technical Services Publisher: ISBN: Category : Government publications Languages : en Pages : 836
Author: David E. Boylan
Author: David E. Boylan
Author: J. Leith Potter
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Author: Defense Documentation Center (U.S.)
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Author: Pitot probe techniques
Author: United States. Department of Commerce. Office of Technical Services
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