TY - GEN
T1 - Three Dimensional Computational Modeling of Flows through an Engineered Log Jam
AU - Lai, Yong G.
AU - Smith, David L.
AU - Bandrowski, David J.
AU - Liu, Xiaofeng
AU - Wu, Kuowei
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Engineered log jam (ELJ) is widely used in the United States for stream and watershed restoration projects. It is economical as the materials are locally available. ELJ itself becomes a natural habitat for aquatic life. The use of ELJ in streams, however, introduces concerns with regard to its safety and impacts on local stream morphology. Design guidelines are still lacking. Laboratory or field study is difficult or costly due to irregular nature. Computational modelling, therefore, becomes an attractive alternative. In this study, a practical, semi-automatic, 3D numerical model is developed to simulate complex flow patterns produced by an ELJ. The ELJ is also placed in a large flume so that velocity is measured and used to verify the numerical model. The ultimate goal is the ability to predict complex river flows and morphological changes induced by in-stream ELJ structures in the field.
AB - Engineered log jam (ELJ) is widely used in the United States for stream and watershed restoration projects. It is economical as the materials are locally available. ELJ itself becomes a natural habitat for aquatic life. The use of ELJ in streams, however, introduces concerns with regard to its safety and impacts on local stream morphology. Design guidelines are still lacking. Laboratory or field study is difficult or costly due to irregular nature. Computational modelling, therefore, becomes an attractive alternative. In this study, a practical, semi-automatic, 3D numerical model is developed to simulate complex flow patterns produced by an ELJ. The ELJ is also placed in a large flume so that velocity is measured and used to verify the numerical model. The ultimate goal is the ability to predict complex river flows and morphological changes induced by in-stream ELJ structures in the field.
UR - http://www.scopus.com/inward/record.url?scp=85021404564&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85021404564&partnerID=8YFLogxK
U2 - 10.1061/9780784480625.003
DO - 10.1061/9780784480625.003
M3 - Conference contribution
AN - SCOPUS:85021404564
T3 - World Environmental and Water Resources Congress 2017: Hydraulics and Waterways and Water Distribution Systems Analysis - Selected Papers from the World Environmental and Water Resources Congress 2017
SP - 16
EP - 23
BT - World Environmental and Water Resources Congress 2017
A2 - Van Weele, Brian
A2 - Dunn, Christopher N.
PB - American Society of Civil Engineers (ASCE)
T2 - 17th World Environmental and Water Resources Congress 2017
Y2 - 21 May 2017 through 25 May 2017
ER -