Accession Number:

ADA580986

Title:

Distributional Monte Carlo Methods for the Boltzmann Equation

Descriptive Note:

Doctoral thesis

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT

Personal Author(s):

Report Date:

2013-03-01

Pagination or Media Count:

138.0

Abstract:

Stochastic particle methods SPMs for the Boltzmann equation, such as the Direct Simulation Monte Carlo DSMC technique, have gained popularity for the prediction of flows in which the assumptions behind the continuum equations of fluid mechanics break down however, there are still a number of issues that make SPMs computationally challenging for practical use. In traditional SPMs, simulated particles may possess only a single velocity vector, even though they may represent an extremely large collection of actual particles. This limits the method to converge only in law to the Boltzmann solution. This document details the development of new SPMs that allow the velocity of each simulated particle to be distributed. This approach has been termed Distributional Monte Carlo DMC.

Subject Categories:

  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE