CaltechTHESIS
  A Caltech Library Service

Impact pressure and total temperature interpretation at hypersonic mach number

Citation

Graves, J. C. (1954) Impact pressure and total temperature interpretation at hypersonic mach number. Engineer's thesis, California Institute of Technology. http://resolver.caltech.edu/CaltechETD:etd-12182003-100211

Abstract

Results are presented of an experimental investigation of impact-pressure and total-temperature interpretation at a nominal Mach number of 5.6. The data indicate that the Rayleigh equation, which assumes non-viscous flow, requires correction at low free-stream Reynolds numbers. These viscous effects are detected at Reynolds numbers (based on impact-probe diameter) as high as 6000, and they continue to increase with decreasing Reynolds numbers. At the low pressure limit of the facilities used in this investigation, the maximum viscous correction is 2.5 percent for a Reynolds number of 425.

The calibration curves for the recovery factor of a total-temperature probe are given, plus an analysis of suitable parameters with which to present this information. For the limited range of total temperatures of 200[degrees]F to 260[degrees]F, and a nominal Mach number of 5.6, single calibration curves are shown using either the free-stream Reynolds number, or the Nusselt number of the flow inside the probe (based on thermocouple wire diameter) as parameters.

Item Type:Thesis (Engineer's thesis)
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Engineering and Applied Science
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Nagamatsu, Henry T.
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1954
Record Number:CaltechETD:etd-12182003-100211
Persistent URL:http://resolver.caltech.edu/CaltechETD:etd-12182003-100211
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5039
Collection:CaltechTHESIS
Deposited By: Imported from ETD-db
Deposited On:19 Dec 2003
Last Modified:26 Dec 2012 03:14

Thesis Files

[img]
Preview
PDF (Graves_jc_1954.pdf) - Final Version
See Usage Policy.

2347Kb

Repository Staff Only: item control page