Journal
PROGRESS IN COMPUTATIONAL FLUID DYNAMICS
Volume 12, Issue 1, Pages 11-18Publisher
INDERSCIENCE ENTERPRISES LTD
DOI: 10.1504/PCFD.2012.044850
Keywords
flow boundary conditions; Lattice Boltzmann method; shallow water; LABSWE
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Funding
- National Basic Research Program of China (973) [2011CB403304, 2010CB429003]
- National Natural Science Foundation of China [51009007]
- Specialised Research Fund for the Doctoral Program of Higher Education (SRFDP)
- State Key Joint Laboratory of Environment Simulation and Pollution Control [10Y03ESPCN]
- National Key Technology Research and Development Program
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In Lattice-Boltzmann modelling of shallow water flows, an approach for a constant discharge Q(in) at the inflow and a fixed water depth h* at the outflow is proposed in this paper. It maintains the prescribed conditions, meanwhile keeps the variables consistent with those outside the flow domain. The effectiveness of the approach is demonstrated by two numerical tests: flows in a straight channel and in a divergent channel.
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