Accession Number:

ADA445987

Title:

DSMC Study of Shock-Detachment Process in Hypersonic Chemically Reacting Flow

Descriptive Note:

Conference paper

Corporate Author:

RUSSIAN ACADEMY OF SCIENCES NOVOSIBIRSK INST OF THEORETICAL AND APPLIED MECHANICS

Personal Author(s):

• Bondar, Ye. A.
• Markelov, G. N.
• Gimelshein, S. F.
• Ivanov, M. S.

Report Date:

2005-07-13

Pagination or Media Count:

7.0

Abstract:

Hypersonic chemically reacting flow around a wedge in the near-continuum regime was numerically studied by the DSMC method with the main goal of validation of real gas effect models. The influence of vibration-dissociation coupling on the results of numerical simulations was analyzed. To this end, two models of chemical reactions were used in the computations, the total collisional energy model and a vibrationally favored model. The numerical results were compared with the experimental data of Hornung and Smith on the shock-wave stand-off distance in a hypersonic flow around the wedge. Sensitivity of simulation results to chemical reaction rate constants was also estimated.

Descriptors:

• *SHOCK WAVES
• *MONTE CARLO METHOD
• *CHEMICAL REACTIONS
• *HYPERSONIC FLOW
• REENTRY VEHICLES
• COUPLING(INTERACTION)
• VIBRATION
• EXPERIMENTAL DATA
• TWO DIMENSIONAL FLOW
• WEDGES
• KNUDSEN NUMBER
• GAS FLOW
• COLLISIONS
• DISSOCIATION
• RANGE(DISTANCE)
• NITROGEN
• NUMERICAL ANALYSIS
• SYMPOSIA
• STANDOFF
• VALIDATION
• REACTION KINETICS

Subject Categories:

• Fluid Mechanics
• Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE