The compatibility of a nine-point difference scheme is studied in this *** on this result, a new nine-point difference scheme is suggested for the nu-merical solution of nonlinear diffusion equation. The new scheme ke...
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The compatibility of a nine-point difference scheme is studied in this *** on this result, a new nine-point difference scheme is suggested for the nu-merical solution of nonlinear diffusion equation. The new scheme keeps the same advantages of the original one, i.e., simple in computation and easy to be imple-mented. Furthermore, the new scheme is more accurate than the original one if the mesh is non-smooth and high skewed, which is most important for Lagrange method in computational fluid dynamics.
Firstly, with the discusses of main ingredients to exert the peak float performance for currently high performance mirco-processors in detail, this paper analyzed the principal motivations for the speedup of parallel ...
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Firstly, with the discusses of main ingredients to exert the peak float performance for currently high performance mirco-processors in detail, this paper analyzed the principal motivations for the speedup of parallel applied codes under the parallel computers consisted of the these micro-processors. Secondly, this paper presented a suite of performance evaluations rules for parallel codes, which can reveal the overall numerical and parallel performance with respect to the serial codes, pose the performance improving strategies, explain exactly the reasons for super-linear Speedup. The numerical experimential results of two realistic applied codes under two parallel computer are also given in this paper.
A pressure weighted method is proposed for numerical solution of the momentum equation in 2D Lagrangian hydrodynamic equations with heat conduction over quadrilateral mesh. It is equivalent to the usual circuit integr...
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A pressure weighted method is proposed for numerical solution of the momentum equation in 2D Lagrangian hydrodynamic equations with heat conduction over quadrilateral mesh. It is equivalent to the usual circuit integral method when the mesh is regular. However, when the mesh deforms, it has some advantages over the circuit integral method. It is more accurate and can hold back the unphysical distortion of the Lagrange mesh.
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