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.
An Analysis of Initial Static Pressure Probe Measurements in a Low-density Hypervelocity Wind Tunnel
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.
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.
Description and Preliminary Calibration of a Low-density, Hypervelocity Wind Tunnel
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).
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).
Scientific and Technical Aerospace Reports
Technical Abstract Bulletin
Author: Defense Documentation Center (U.S.)
Publisher:
ISBN:
Category : Military art and science
Languages : en
Pages : 1540
Book Description
Publisher:
ISBN:
Category : Military art and science
Languages : en
Pages : 1540
Book Description
Report
U.S. Government Research Reports
Proceedings of the Conference
Author:
Publisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 560
Book Description
Publisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 560
Book Description
Neutral Atmospheric structure measurements
Author: Pitot probe techniques
Publisher:
ISBN:
Category :
Languages : en
Pages : 230
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 230
Book Description
Keywords Index to U.S. Government Technical Reports (permuted Title Index).
Author: United States. Department of Commerce. Office of Technical Services
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 836
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 836
Book Description
Keywords Index to U.S. Government Technical Reports
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1160
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1160
Book Description