Title

An Analysis of Nonequilibrium Inviscid Flow

Date

1962

Index Abstract

Coming Soon

Photo Quality

Not Needed

Report Number

AEDC TDR 62-172

Creator

Gibson, W. E.

Sowydra, A.

Corporate Author

Cornell Aeronautical, Inc.

Laboratory

Arnold Engineering Development Center

Extent

73

Identifier

AD0282901

Access Rights

ASTIA

Distribution Classification

1

Contract

AF 40(600)-928

DoD Project

8951

DoD Task

89103

DTIC Record Exists

No

Distribution Change Authority Correspondence

None

Abstract

An analytic solution is developed for blunt-body flows involving nonequilibrium chemistry. The chemical model describes a diatomic gas with a single dissociation recombination reaction. The progress of the reaction is determined behind the bow shock under conditions of vibrational equilibrium. The analysis seeks an improved understanding of the structure of the chemical relaxation zone along streamlines, in particular, its dependence on flow parameters. In high-altitude flight, three-body recombination becomes ineffective and dissociation or binary scaling can be applied. The range of validity of binary scaling is found and the implications for hypersonic testing are discussed. The analytic approach also applies for cases where recombination is important, including equilibrium flow. Numerical examples are given for spherical bodies and for a range of body sizes and flight altitudes.

Report Availability

Full text available

Date Issued

1962-08

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