Abstract
Kelvin's circulation theorem and its implications for potential vorticity (PV) conservation are among the most fundamental concepts in ideal fluid dynamics. In this note, we discuss the numerical treatment of these concepts with the Smoothed Particle Hydrodynamics (SPH) and related methods. We show that SPH satisfies an exact circulation theorem in an interpolated velocity field, and that, when appropriately interpreted, this leads to statements of conservation of PV and generalized enstrophies. We also indicate some limitations where the analogy with ideal fluid dynamics breaks down.
Original language | English |
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Pages (from-to) | 41-55 |
Number of pages | 15 |
Journal | BIT Numerical Mathematics |
Volume | 43 |
Issue number | 1 |
DOIs | |
Publication status | Published - Mar 2003 |
Externally published | Yes |
Bibliographical note
Funding Information:J. Frank gratefully acknowledges partial funding by GMD, Bonn. Partial financial support of S. Reich by EPSRC Grant GR/R09565/01 and by European Commission funding for the Research Training Network “Mechanics and Symmetry in Europe” is gratefully acknowledged.
Funding
J. Frank gratefully acknowledges partial funding by GMD, Bonn. Partial financial support of S. Reich by EPSRC Grant GR/R09565/01 and by European Commission funding for the Research Training Network “Mechanics and Symmetry in Europe” is gratefully acknowledged.
Keywords
- Geometric methods
- Geophysical fluid dynamics
- Potential vorticity conserving methods
- Smoothed particle hydrodynamics