14 اردیبهشت 1403
محمد واقفي

محمد واقفی

مرتبه علمی: دانشیار
نشانی: دانشکده مهندسی - گروه مهندسی عمران
تحصیلات: دکترای تخصصی / مهندسی عمران
تلفن: 077-31342401
دانشکده: دانشکده مهندسی

مشخصات پژوهش

عنوان Radial basis function-based differential quadrature for dam break problems
نوع پژوهش مقالات در نشریات
کلیدواژه‌ها
Differential quadrature Radial basis function Dam break Shallow water equations Meshless method Computational mechanics
مجله ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
شناسه DOI https://doi.org/10.1016/j.enganabound.2023.06.020
پژوهشگران عبدالمهدی بهروزی (نفر اول) ، کلودیو مییر (نفر دوم) ، محمد واقفی (نفر سوم)

چکیده

This study presents a new approach for simulating dam break flows with the two-dimensional shallow water equations (SWE), incorporating wet and dry beds, as well as irregular and frictional topography. The proposed method employs local radial basis function-based differential quadrature (LRBF-DQM) meshless techniques for space-derivative operators, while utilizing an explicit first-order finite difference scheme for the temporal derivatives. To evaluate the effectiveness of the proposed method, several two-dimensional numerical experiments were conducted to simulate the flow resulting from a dam break. The numerical experiments were specifically designed to assess the performance of the suggested approach and compare it against existing benchmarks. The results demonstrate the promising accuracy of the LRBF-DQM meshless technique in solving SWE problems, specifically in simulating dam break flows, despite the inherent complexities of these problems. The method is easy to program and mesh-free, but requires careful selection of suitable shape parameters, as with previous RBF applications.