(126h) Particle Motion in a Small Room Containing a Mannequin

This talk presents the results of a computational study of the motion of small, non-Brownian particles that are injected into a small room containing a mannequin. The study was motivated by an experimental study at Syracuse University (D. Marr, PhD Dissertation, 2007). The mannequin can be either heated or unheated. The air velocity and temperature fields inside the room are computed by DNS using a lattice Boltzmann method (LBM) devised by Inamuro et al. (J. Comp. Phys. 198, 628-644, 2004). The focus of the study to be discussed is on the accuracy of the DNS and the statistical significance of the deposition results obtained from the simulations. Most of the results to be discussed are obtained using a uniform grid containing grid points, and the grid spacing is 2 cm. The results will be compared with grid containing 8 times as many grid points with a grid spacing equal to 1 cm. Results will also be presented for different numbers of particles to test the statistical significance of the deposition results. Comparisons with point measurements of air velocity and temperature carried out in the Syracuse study will also be presented.