کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7155909 | 1462639 | 2018 | 31 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An overset mesh based multiphase flow solver for water entry problems
ترجمه فارسی عنوان
یک حل کننده جریان چند مرحله ای برای مشکالت ورود به آب، مشبک بیش از حد است
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کلمات کلیدی
مهندسی دریایی، دینامیک سیالات محاسباتی، اسلم
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مکانیک محاسباتی
چکیده انگلیسی
This paper extends a recently proposed multi-region based numerical wave tank (MartÃnez-Ferrer et al. [1]) to solve water entry problems in naval engineering. The original static linking strategy is developed to enable the dynamic coupling of several moving regions. This permits the method to deal with large-amplitude motions for structures slamming into water waves. A background grid and one or more component meshes are firstly generated to overlay the whole computational domain and the sub-domains surrounding the structures, respectively. During computation, the background mesh is fixed while the small grids move freely or as prescribed without deformation and regeneration. This effectively circumvents the large and often excessive error-prone dynamic deformation of a single-block mesh as well as the complex and time-consuming mesh regeneration. Test cases of dam breaking with and without obstacles are first conducted to verify the developed code by comparing the numerical solution against experimental data. Then the new code is used to solve prescribed and free-fall water entry problems. The obtained results agree well with experimental measurements and other computational results reported in the literature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Fluids - Volume 172, 30 August 2018, Pages 689-705
Journal: Computers & Fluids - Volume 172, 30 August 2018, Pages 689-705
نویسندگان
Z.H. Ma, L. Qian, P.J. MartÃnez-Ferrer, D.M. Causon, C.G. Mingham, W. Bai,