Accession Number:

AD0647124

Title:

MONTE CARLO SIMULATION OF THE FLOW OF A RAREFIED GAS AROUND A CYLINDER

Descriptive Note:

Technical note

Corporate Author:

MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB

Personal Author(s):

• Starr, Alan W.

Report Date:

1967-01-18

Pagination or Media Count:

68.0

Abstract:

A Monte Carlo technique is described for simulating the high-speed flow of a rarefied gas around a cylindrical body. The method uses a hard-sphere model, or, alternatively, the Maxwellian model to compute collisions between particles. A representative test particle is scattered in such a way that its statistical behavior approximates that of a random particle chosen from the actual gas. This requires knowledge of the distribution function of target particles, which is estimated from observations of the behavior of the test particle. The method is applicable to any collision model and to any model for the interaction between the gas and the surface of the body.

Descriptors:

• *CYLINDRICAL BODIES
• *RAREFIED GAS DYNAMICS
• DISTRIBUTION FUNCTIONS
• GAS FLOW
• INTERACTIONS
• MONTE CARLO METHOD
• PARTICLES
• SCATTERING
• SIMULATION
• SURFACES

Subject Categories:

• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE