Table of Contents
Journal of Computational Engineering
Volume 2016 (2016), Article ID 5405939, 15 pages
http://dx.doi.org/10.1155/2016/5405939
Research Article

Lattice Boltzmann Simulation of Airflow and Mixed Convection in a General Ward of Hospital

Department of Mathematics & Physics, North South University, Dhaka 1229, Bangladesh

Received 16 January 2016; Accepted 11 April 2016

Academic Editor: M’hamed Souli

Copyright © 2016 Taasnim Ahmed Himika et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In the present investigation the airflow and heat transfer for mixed convection have been simulated for a model general ward of hospital with six beds and partitions using the Lattice Boltzmann Method (LBM). Three different Reynolds numbers 100, 250, and 350 have been considered. Bounce-back condition has been applied at the wall. Results have been represented in three different case studies and the changes have been discussed in terms of streamlines and isotherms. Code validation has also been included before going through the simulation process and it shows good agreement with previously published papers when the comparison is made on average Nusselt number. Results show that the pattern of indoor airflow is varied in each and every case study due to the effect of mixed convection flow and placement of partition. In addition, the changes in average rate of heat transfer indicate that patients closer to inlet get the most air and feel better and if any patient does not need much air, he or she should be kept near the outlet to avoid temperature related complications.