Preconditioning and multigrid for Euler flows with low-subsonic regions:
Abstract: "For subsonic flows and upwind-discretized, linearized 1-D Euler equations, the smoothing behavior of multigrid-accelerated point Gauss-Seidel relaxation is investigated. Error decay by convection over domain boundaries is also discussed. A fix to poor convergence rates at low Mach nu...
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Amsterdam
1994
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| Schriftenreihe: | Centrum voor Wiskunde en Informatica <Amsterdam> / Afdeling Numerieke Wiskunde: Report NM
1994,12 |
| Schlagworte: | |
| Zusammenfassung: | Abstract: "For subsonic flows and upwind-discretized, linearized 1-D Euler equations, the smoothing behavior of multigrid-accelerated point Gauss-Seidel relaxation is investigated. Error decay by convection over domain boundaries is also discussed. A fix to poor convergence rates at low Mach numbers is sought in replacing the point relaxation applied to unconditioned Euler equations, by locally implicit 'time' stepping applied to preconditioned Euler equations. The locally implicit iteration step is optimized for good damping of high-frequency errors. Numerical inaccuracy at low Mach numbers is also addressed. Arguments are given why in the present case it is not a necessity to solve this accuracy problem." |
| Beschreibung: | 13 S. |
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| 100 | 1 | |a Koren, Barry |e Verfasser |4 aut | |
| 245 | 1 | 0 | |a Preconditioning and multigrid for Euler flows with low-subsonic regions |c B. Koren |
| 264 | 1 | |a Amsterdam |c 1994 | |
| 300 | |a 13 S. | ||
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| 490 | 1 | |a Centrum voor Wiskunde en Informatica <Amsterdam> / Afdeling Numerieke Wiskunde: Report NM |v 1994,12 | |
| 520 | 3 | |a Abstract: "For subsonic flows and upwind-discretized, linearized 1-D Euler equations, the smoothing behavior of multigrid-accelerated point Gauss-Seidel relaxation is investigated. Error decay by convection over domain boundaries is also discussed. A fix to poor convergence rates at low Mach numbers is sought in replacing the point relaxation applied to unconditioned Euler equations, by locally implicit 'time' stepping applied to preconditioned Euler equations. The locally implicit iteration step is optimized for good damping of high-frequency errors. Numerical inaccuracy at low Mach numbers is also addressed. Arguments are given why in the present case it is not a necessity to solve this accuracy problem." | |
| 650 | 4 | |a Euler's numbers | |
| 810 | 2 | |a Afdeling Numerieke Wiskunde: Report NM |t Centrum voor Wiskunde en Informatica <Amsterdam> |v 1994,12 |w (DE-604)BV010177152 |9 1994,12 | |
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| author | Koren, Barry |
| author_facet | Koren, Barry |
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| id | DE-604.BV010186762 |
| illustrated | Not Illustrated |
| indexdate | 2024-07-09T17:48:02Z |
| institution | BVB |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-006767482 |
| oclc_num | 32230947 |
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| owner_facet | DE-91G DE-BY-TUM |
| physical | 13 S. |
| publishDate | 1994 |
| publishDateSearch | 1994 |
| publishDateSort | 1994 |
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| series2 | Centrum voor Wiskunde en Informatica <Amsterdam> / Afdeling Numerieke Wiskunde: Report NM |
| spelling | Koren, Barry Verfasser aut Preconditioning and multigrid for Euler flows with low-subsonic regions B. Koren Amsterdam 1994 13 S. txt rdacontent n rdamedia nc rdacarrier Centrum voor Wiskunde en Informatica <Amsterdam> / Afdeling Numerieke Wiskunde: Report NM 1994,12 Abstract: "For subsonic flows and upwind-discretized, linearized 1-D Euler equations, the smoothing behavior of multigrid-accelerated point Gauss-Seidel relaxation is investigated. Error decay by convection over domain boundaries is also discussed. A fix to poor convergence rates at low Mach numbers is sought in replacing the point relaxation applied to unconditioned Euler equations, by locally implicit 'time' stepping applied to preconditioned Euler equations. The locally implicit iteration step is optimized for good damping of high-frequency errors. Numerical inaccuracy at low Mach numbers is also addressed. Arguments are given why in the present case it is not a necessity to solve this accuracy problem." Euler's numbers Afdeling Numerieke Wiskunde: Report NM Centrum voor Wiskunde en Informatica <Amsterdam> 1994,12 (DE-604)BV010177152 1994,12 |
| spellingShingle | Koren, Barry Preconditioning and multigrid for Euler flows with low-subsonic regions Euler's numbers |
| title | Preconditioning and multigrid for Euler flows with low-subsonic regions |
| title_auth | Preconditioning and multigrid for Euler flows with low-subsonic regions |
| title_exact_search | Preconditioning and multigrid for Euler flows with low-subsonic regions |
| title_full | Preconditioning and multigrid for Euler flows with low-subsonic regions B. Koren |
| title_fullStr | Preconditioning and multigrid for Euler flows with low-subsonic regions B. Koren |
| title_full_unstemmed | Preconditioning and multigrid for Euler flows with low-subsonic regions B. Koren |
| title_short | Preconditioning and multigrid for Euler flows with low-subsonic regions |
| title_sort | preconditioning and multigrid for euler flows with low subsonic regions |
| topic | Euler's numbers |
| topic_facet | Euler's numbers |
| volume_link | (DE-604)BV010177152 |
| work_keys_str_mv | AT korenbarry preconditioningandmultigridforeulerflowswithlowsubsonicregions |