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Atomization and Sprays
Editor-in-Chief Europe: Günter Brenn (open in a new tab)
Editor-in-Chief Americas: Marcus Herrmann (open in a new tab)
Редактор-основатель: Norman Chigier (open in a new tab)

Выходит 12 номеров в год

ISSN Печать: 1044-5110

ISSN Онлайн: 1936-2684

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.2 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.8 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00095 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.28 SJR: 0.341 SNIP: 0.536 CiteScore™:: 1.9 H-Index: 57

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MULTILEVEL DYNAMIC MESH REFINEMENT FOR MODELING TRANSIENT SPRAY AND MIXTURE FORMATION

Том 19, Выпуск 8, 2009, pp. 755-769
DOI: 10.1615/AtomizSpr.v19.i8.40
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Краткое описание

This study implemented a multilevel dynamic mesh refinement algorithm to improve the accuracy of transient engine spray simulation. The adaptive scheme is a dynamic process that adapts a coarse mesh by employing local cell division and recovery. During cell refinement, the isotropic division of one hexahedron into eight subcells was performed in three dimensions. In order to treat the hanging nodes that appear at the interface between the divided and undivided cells, an approach for conserving the flux across the interface was implemented. This approach offers flexibilities in handling successive adaptations for efficient data management. A special data structure based on octree was developed that offers high storage efficiency. Both solid-cone and hollow-cone sprays under direct-injection gasoline engine conditions were simulated. Predicted spray characteristics using different mesh densities with various refinement levels were compared. Results show that the present refinement scheme can predict similar spray structures as those obtained using the globally fine mesh. A significant computational speed up was achieved by using a relatively coarse mesh with multilevel refinement while maintaining a good level of accuracy in predicting the spray structure.

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