کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8052132 1519379 2018 32 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The spectral element method as an efficient tool for transient simulations of hydraulic systems
ترجمه فارسی عنوان
روش عنصر طیفی به عنوان یک ابزار کارآمد برای شبیه سازی های گذرا از سیستم های هیدرولیکی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
چکیده انگلیسی
This paper presents transient numerical simulations of hydraulic systems in engineering applications using the spectral element method (SEM). Along with a detailed description of the underlying numerical method, it is shown that the SEM yields highly accurate numerical approximations at modest computational costs, which is in particular useful for optimization-based control applications. In order to enable fast explicit time stepping methods, the boundary conditions are imposed weakly using a numerically stable upwind discretization. The benefits of the SEM in the area of hydraulic system simulations are demonstrated in various examples including several simulations of strong water hammer effects. Due to its exceptional convergence characteristics, the SEM is particularly well suited to be used in real-time capable control applications. As an example, it is shown that the time evolution of pressure waves in a large scale pumped-storage power plant can be well approximated using a low-dimensional system representation utilizing a minimum number of dynamical states.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematical Modelling - Volume 54, February 2018, Pages 627-647
نویسندگان
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