Multispeed Lattice Boltzmann Model with Space-Filling Lattice for Transcritical Shallow Water Flows
Joint Authors
Zhang, Jianmin
Peng, Y.
Meng, J. P.
Source
Mathematical Problems in Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-08-24
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Inspired by the recent success of applying multispeed lattice Boltzmann models with a non-space-filling lattice for simulating transcritical shallow water flows, the capabilities of their space-filling counterpart are investigated in this work.
Firstly, two lattice models with five integer discrete velocities are derived by using the method of matching hydrodynamics moments and then tested with two typical 1D problems including the dam-break flow over flat bed and the steady flow over bump.
In simulations, the derived space-filling multispeed models, together with the stream-collision scheme, demonstrate better capability in simulating flows with finite Froude number.
However, the performance is worse than the non-space-filling model solved by finite difference scheme.
The stream-collision scheme with second-order accuracy may be the reason since a numerical scheme with second-order accuracy is prone to numerical oscillations at discontinuities, which is worthwhile for further study.
American Psychological Association (APA)
Peng, Y.& Meng, J. P.& Zhang, Jianmin. 2017. Multispeed Lattice Boltzmann Model with Space-Filling Lattice for Transcritical Shallow Water Flows. Mathematical Problems in Engineering،Vol. 2017, no. 2017, pp.1-5.
https://search.emarefa.net/detail/BIM-1192519
Modern Language Association (MLA)
Peng, Y.…[et al.]. Multispeed Lattice Boltzmann Model with Space-Filling Lattice for Transcritical Shallow Water Flows. Mathematical Problems in Engineering No. 2017 (2017), pp.1-5.
https://search.emarefa.net/detail/BIM-1192519
American Medical Association (AMA)
Peng, Y.& Meng, J. P.& Zhang, Jianmin. Multispeed Lattice Boltzmann Model with Space-Filling Lattice for Transcritical Shallow Water Flows. Mathematical Problems in Engineering. 2017. Vol. 2017, no. 2017, pp.1-5.
https://search.emarefa.net/detail/BIM-1192519
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1192519