Node generation in complex 3D domains for heat conduction problems solved by RBF-FD meshless method
نویسندگان
چکیده
Abstract A novel algorithm is presented and employed for the fast generation of meshless node distributions over arbitrary 3D domains defined by using stereolithography (STL) file format. The based on node-repel approach where nodes move according to mutual repulsion neighboring nodes. iterative coupled with an octree-based technique efficient projection external surface in order constrain distribution inside domain. Several tests are carried out three different mechanical components practical engineering interest characterized complexity their geometry. generated then solve a steady-state heat conduction test problem Radial Basis Function-generated Finite Differences (RBF-FD) method. Excellent results obtained terms both quality accuracy numerical solutions.
منابع مشابه
A truly meshless method formulation for analysis of non-Fourier heat conduction in solids
The non-Fourier effect in heat conduction is important in strong thermal environments and thermal shock problems. Generally, commercial FE codes are not available for analysis of non-Fourier heat conduction. In this study, a meshless formulation is presented for the analysis of the non-Fourier heat conduction in the materials. The formulation is based on the symmetric local weak form of the sec...
متن کاملA Meshless Computational Method for Solving Inverse Heat Conduction Problem
In this paper, a new meshless numerical scheme for solving inverse heat conduction problem is proposed. The numerical scheme is developed by using the fundamental solution of heat equation as basis function and treating the entire space-time domain in a global sense. The standard Tikhonov regularization technique and L-curve method are adopted for solving the resultant ill-conditioned linear sy...
متن کاملA Meshless Method Based on Least-souares Approach for Steady- and Unsteady-state Heat Conduction Problems
The meshles.i method based on the least-squares approach, the rneshle.is weighted leastsquares (MWLS) method, is extended to soive conduction heat transfer problems. The MWLS formulation is first established for steady-state problems and then extended to unsteady-state problems with time-stepping schemes. Theoretiiai analy.us antl numerical examples indicate that larger time steps can be used i...
متن کاملA Meshless Method Based on Least-squares Approach for Steady- and Unsteady-state Heat Conduction Problems
The meshless method based on the least-squares approach, the meshless weighted leastsquares (MWLS) method, is extended to solve conduction heat transfer problems. The MWLS formulation is first established for steady-state problems and then extended to unsteady-state problems with time-stepping schemes. Theoretical analysis and numerical examples indicate that larger time steps can be used in th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2021
ISSN: ['1742-6588', '1742-6596']
DOI: https://doi.org/10.1088/1742-6596/2116/1/012020