TY - GEN
T1 - Flow and scour patterns around bridge piers with different configurations
T2 - 2014 Congress on Geo-Characterization and Modeling for Sustainability, Geo-Congress 2014
AU - Tao, Junliang
AU - Yu, Xiong Bill
PY - 2014
Y1 - 2014
N2 - In this study, flow field around piers with different configurations are simulated using three-dimensional computational fluid dynamics (CFD) model. The effects induced by different cross-sectional shapes (circular, square, diamond, and lenticular), different aspect ratios, and different attack angles are studied. An expression based on the concept of effective width is proposed to evaluate the combination effect of the aspect ratio and the attack angle on the maximum shear stress. The flow patterns are analyzed and compared with the corresponding scour patterns observed from experiments to investigate the influence of pier configurations on bridge scour; these findings also shed light on the scour mechanism and help guide practice applications of countermeasures.
AB - In this study, flow field around piers with different configurations are simulated using three-dimensional computational fluid dynamics (CFD) model. The effects induced by different cross-sectional shapes (circular, square, diamond, and lenticular), different aspect ratios, and different attack angles are studied. An expression based on the concept of effective width is proposed to evaluate the combination effect of the aspect ratio and the attack angle on the maximum shear stress. The flow patterns are analyzed and compared with the corresponding scour patterns observed from experiments to investigate the influence of pier configurations on bridge scour; these findings also shed light on the scour mechanism and help guide practice applications of countermeasures.
UR - http://www.scopus.com/inward/record.url?scp=84906841381&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84906841381&partnerID=8YFLogxK
U2 - 10.1061/9780784413272.256
DO - 10.1061/9780784413272.256
M3 - Conference contribution
AN - SCOPUS:84906841381
SN - 9780784413272
T3 - Geotechnical Special Publication
SP - 2655
EP - 2664
BT - Geo-Congress 2014 Technical Papers
PB - American Society of Civil Engineers (ASCE)
Y2 - 23 February 2014 through 26 February 2014
ER -