TY - JOUR
T1 - Effect of fluctuating wind direction on cross natural ventilation in buildings from large eddy simulation
AU - Jiang, Yi
AU - Chen, Qingyan
N1 - Funding Information:
This work is supported by the US National Science Foundation under grant CMS-9877118. We would like to thank Professor Tadahisa Katayama from Kyushu University, Japan for providing the experimental data and building plans and for many useful discussions.
PY - 2002/4
Y1 - 2002/4
N2 - A large eddy simulation (LES) program with the Smagorinsky subgrid-scale model has been used to study cross natural ventilation in buildings, which has experimental data available from on-site measurements and a wind tunnel. Since natural wind changes direction over time, it is hard to reproduce this effect in a conventional wind tunnel where the "wind" direction is fixed. There are discrepancies between the on-site and wind-tunnel cases for the wind-pressure difference across the buildings, the eddy size behind the buildings, and the wind speed distribution inside an apartment with cross ventilation. LES can successfully simulate both cases by changing or fixing incoming wind direction, and the simulated results agree reasonably with the corresponding experimental data.
AB - A large eddy simulation (LES) program with the Smagorinsky subgrid-scale model has been used to study cross natural ventilation in buildings, which has experimental data available from on-site measurements and a wind tunnel. Since natural wind changes direction over time, it is hard to reproduce this effect in a conventional wind tunnel where the "wind" direction is fixed. There are discrepancies between the on-site and wind-tunnel cases for the wind-pressure difference across the buildings, the eddy size behind the buildings, and the wind speed distribution inside an apartment with cross ventilation. LES can successfully simulate both cases by changing or fixing incoming wind direction, and the simulated results agree reasonably with the corresponding experimental data.
KW - Cross natural ventilation
KW - Large eddy simulation
UR - http://www.scopus.com/inward/record.url?scp=0036533435&partnerID=8YFLogxK
U2 - 10.1016/S0360-1323(01)00036-1
DO - 10.1016/S0360-1323(01)00036-1
M3 - Journal article
AN - SCOPUS:0036533435
SN - 0360-1323
VL - 37
SP - 379
EP - 386
JO - Building and Environment
JF - Building and Environment
IS - 4
ER -