Method for efficient prevention of gravity wave decoupling on rectangular semi-staggered grids
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2011
Authors
Nicković, SlobodanDjurdjević, Vladimir
Vujadinović, Mirjam
Janjić, Zavisa I.
Curcić, Milan
Rajković, Borivoj
Article (Published version)
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Generation of short gravity wave noise often occurs on semi-staggered rectangular grids as a result of sub-grid decoupling when there is a strong forcing in the mass field. In this study a numerical scheme has been proposed to prevent the generation of the gravity wave decoupling. The proposed numerical method provides efficient communication between decoupled gravity wave finite-difference solutions by a simple averaging of a term in the height tendency in the continuity equation. The proposed method is tested using a shallow water sink model developed for the purpose of this study. It has been demonstrated that this method outperforms other existing approaches. The new scheme is time efficient, based on explicit time integration and can be easily implemented. The proposed method is applicable in hydrodynamic models specified on semi-staggered B or E grids.
Keywords:
Gravity wave / Rectangular grid / Divergence correctionSource:
Journal of Computational Physics, 2011, 230, 5, 1865-1875Publisher:
- Academic Press Inc Elsevier Science, San Diego
DOI: 10.1016/j.jcp.2010.11.037
ISSN: 0021-9991
WoS: 000287057900007
Scopus: 2-s2.0-78651467800
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Poljoprivredni fakultetTY - JOUR AU - Nicković, Slobodan AU - Djurdjević, Vladimir AU - Vujadinović, Mirjam AU - Janjić, Zavisa I. AU - Curcić, Milan AU - Rajković, Borivoj PY - 2011 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/2682 AB - Generation of short gravity wave noise often occurs on semi-staggered rectangular grids as a result of sub-grid decoupling when there is a strong forcing in the mass field. In this study a numerical scheme has been proposed to prevent the generation of the gravity wave decoupling. The proposed numerical method provides efficient communication between decoupled gravity wave finite-difference solutions by a simple averaging of a term in the height tendency in the continuity equation. The proposed method is tested using a shallow water sink model developed for the purpose of this study. It has been demonstrated that this method outperforms other existing approaches. The new scheme is time efficient, based on explicit time integration and can be easily implemented. The proposed method is applicable in hydrodynamic models specified on semi-staggered B or E grids. PB - Academic Press Inc Elsevier Science, San Diego T2 - Journal of Computational Physics T1 - Method for efficient prevention of gravity wave decoupling on rectangular semi-staggered grids EP - 1875 IS - 5 SP - 1865 VL - 230 DO - 10.1016/j.jcp.2010.11.037 ER -
@article{ author = "Nicković, Slobodan and Djurdjević, Vladimir and Vujadinović, Mirjam and Janjić, Zavisa I. and Curcić, Milan and Rajković, Borivoj", year = "2011", abstract = "Generation of short gravity wave noise often occurs on semi-staggered rectangular grids as a result of sub-grid decoupling when there is a strong forcing in the mass field. In this study a numerical scheme has been proposed to prevent the generation of the gravity wave decoupling. The proposed numerical method provides efficient communication between decoupled gravity wave finite-difference solutions by a simple averaging of a term in the height tendency in the continuity equation. The proposed method is tested using a shallow water sink model developed for the purpose of this study. It has been demonstrated that this method outperforms other existing approaches. The new scheme is time efficient, based on explicit time integration and can be easily implemented. The proposed method is applicable in hydrodynamic models specified on semi-staggered B or E grids.", publisher = "Academic Press Inc Elsevier Science, San Diego", journal = "Journal of Computational Physics", title = "Method for efficient prevention of gravity wave decoupling on rectangular semi-staggered grids", pages = "1875-1865", number = "5", volume = "230", doi = "10.1016/j.jcp.2010.11.037" }
Nicković, S., Djurdjević, V., Vujadinović, M., Janjić, Z. I., Curcić, M.,& Rajković, B.. (2011). Method for efficient prevention of gravity wave decoupling on rectangular semi-staggered grids. in Journal of Computational Physics Academic Press Inc Elsevier Science, San Diego., 230(5), 1865-1875. https://doi.org/10.1016/j.jcp.2010.11.037
Nicković S, Djurdjević V, Vujadinović M, Janjić ZI, Curcić M, Rajković B. Method for efficient prevention of gravity wave decoupling on rectangular semi-staggered grids. in Journal of Computational Physics. 2011;230(5):1865-1875. doi:10.1016/j.jcp.2010.11.037 .
Nicković, Slobodan, Djurdjević, Vladimir, Vujadinović, Mirjam, Janjić, Zavisa I., Curcić, Milan, Rajković, Borivoj, "Method for efficient prevention of gravity wave decoupling on rectangular semi-staggered grids" in Journal of Computational Physics, 230, no. 5 (2011):1865-1875, https://doi.org/10.1016/j.jcp.2010.11.037 . .