Title

Measurements of Pressure and Speed of Flow in a Spark-Heated Hypersonic Wind Tunnel

Date

1962

Index Abstract

Coming Soon

Photo Quality

Complete

Report Number

AEDC TDR 62-218

Creator

Karamcheti, Krishnamurty

Vali, Walter

Kyser, James B.

Rasmussen, Maurice L.

Corporate Author

Stanford University

Laboratory

Arnold Engineering Development Center

Extent

57

Identifier

AD0288668

Access Rights

ASTIA

Distribution Classification

1

Contract

AF 40(600)-930

DoD Project

8952

DoD Task

895210

DTIC Record Exists

No

Distribution Change Authority Correspondence

None

Abstract

The nature of the flow and state of the gas in the nozzle and test section of the Stanford spark-heated hypersonic wind tunnel was studied. Attention is given only to the pressure and speed-of-flow measurements. Results are presented for pitot pressures and wall static pressures. The speed of flow in the test section is derived from measurements made by spark-schlieren photographs of a disturbance created in the flow by means of a spark discharge. On the basis of these measurements, it is concluded that the actual stagnation enthalpy of the stream is likely to be different from the enthalpy calculated according to current practice. As a consequence, it is shown that serious errors may occur in the calculated values for the state of the flow, and in theoretical estimates of quantities such as stagnation-point heat-transfer rates.

Report Availability

Full text available

Date Issued

1962-11

Publisher

Arnold Air Force Station, TN : Arnold Engineering Development Center, Air Force Systems Command, United States Air Force

Provenance

IIT

Type

report

Format

1 online resource