کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4925308 1431399 2017 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A numerical simulation method for molten material behavior in nuclear reactors
ترجمه فارسی عنوان
یک روش شبیه سازی عددی برای رفتار مواد مذاب در راکتورهای هسته ای
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی
In recent years, significant attention has been paid to the precise determination of relocation of molten materials in reactor pressure vessels of boiling water reactors (BWRs) during severe accidents. To address this problem, we have developed a computational fluid dynamics code JUPITER, based on thermal-hydraulic equations and multi-phase simulation models. Although the Poisson solver has previously been a performance bottleneck in the JUPITER code, this is resolved by a new hybrid parallel Poisson solver, whose strong scaling is extended up to ∼200 k cores on the K-computer. As a result of the improved computational capability, the problem size and physical models are dramatically expanded. A series of verification and validation studies are enabled, which are in agreement with previous numerical simulations and experiments. These physical and computational capabilities of JUPITER enable us to investigate molten material behaviors in reactor relevant situations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Engineering and Design - Volume 322, October 2017, Pages 301-312
نویسندگان
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