کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
518202 867565 2014 28 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Arbitrary Lagrangian Eulerian remap treatments consistent with staggered compatible total energy conserving Lagrangian methods
ترجمه فارسی عنوان
تطبیق مجدد یورلین لاگرانژی خودسرانه با سازگاری با انرژی تمام انرژی سازگار با تقسیم شده، روشهای لاگرانژ حفظ شده
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
چکیده انگلیسی

We describe new methods of computing post-remap nodal and subzonal masses in Arbitrary Lagrangian Eulerian (ALE) calculations employing the staggered energy conserving Lagrangian hydrodynamics method of Caramana et al. (1998) [12]. An important feature of this Lagrangian algorithm is the distribution of the masses to subzonal corners within each zone, which is then used to difference the momentum and energy equations such that both linear momentum and total energy are conserved. Such algorithms present challenges when employed as part of an ALE application, however, as these subzonal masses must be treated consistently through the remap phase. In this work we develop new ideas to compute the post-remap corner masses and associated mass fluxes between the nodal control volumes, such that the new corner masses (and therefore zonal and nodal masses) are consistently defined and conservation of linear momentum is ensured through the ALE step. We demonstrate applications of these ideas on examples including pure remapping and full ALE test cases.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 273, 15 September 2014, Pages 520–547
نویسندگان
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