On the Numerical Accuracy of Spreadsheets [PDF]
Journal of Statistical Software, 2010 This paper discusses the numerical precision of five spreadsheets (Calc, Excel, Gnumeric, NeoOffice and Oleo) running on two hardware platforms (i386 and amd64) and on three operating systems (Windows Vista, Ubuntu Intrepid and Mac OS Leopard).
Alejandro C. Frery +4 more
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Effect of Turbulence Models in Performance Characterization of a Low Reynolds Number UAV Propeller [PDF]
INCAS Bulletin, 2021 The advancement of computer technology has given the necessary impetus to perform numerical modelling and simulation in engineering. Turbulence modelling in Computational Fluid Dynamics is characterized by non-physics based modelling and there are ...
Aravind SEENI
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Numerical Accuracy of Finite-Difference Time-Domain Formulations for Magnetized Plasma [PDF]
Journal of Electromagnetic Engineering and Science, 2022 The finite-difference time-domain (FDTD) has been widely used to analyze electromagnetic (EM) wave propagation in complex dispersive media. Over the past three decades, a variety of FDTD approaches for the EM wave propagation in magnetized plasma has ...
Jeahoon Cho +2 more
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Influence of Full and Symmetrical Domains on the Numerical Flow around a SUBOFF Submarine Model using OpenFOAM [PDF]
Journal of Applied Fluid Mechanics, 2023 In this research, we consider the influence of two kinds of domain on the numerical flow around a submarine model. A fully appended SUBOFF submarine model was used, and the structure and characteristics of the flow were investigated under a full domain ...
N. V. A. Permadi +2 more
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Analysis and Research on an on-line measuring device for machining accuracy of parts used in NC machine tools [PDF]
MATEC Web of Conferences, 2022 The utility model relates to an on-line detection device for the machining accuracy of parts of a NC machine tool, which comprises a storage flat box, a reciprocating driving mechanism, an on-line detection assembly and a trigger probe.
Wan Zhiqiang, Zhang Qingqing
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An Efficient Finite-Difference Stencil with High-Order Temporal Accuracy for Scalar Wave Modeling
Applied Sciences, 2023 Solving a scalar wave equation by the finite-difference (FD) method is a key step for advanced seismic imaging, in which the numerical accuracy is significantly affected by the FD stencil.
Guiting Chen, Zhenming Peng, Yalin Li
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Application of improved Picard method in unsaturated seepage
Yantu gongcheng xuebao, 2022 Richards' equation is widely used in the simulation of unsaturated seepage and related fields. In the numerical solution, the finite volume method can be used for numerical discretization, and then the Picard method can be used for iterative solution ...
ZHU Shuai-run 1, 2, LI Shao-hong 3, HE Bo 1, 2, WU Li-zhou 1
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An improved method for inhomogeneous space grid in the simulation of unsaturated flow
Shuiwen dizhi gongcheng dizhi, 2023 The Richards’ equation is widely used in the simulation of unsaturated flow and related fields. In the numerical solution process, the finite difference method can be used to carry out numerical discretization and iterative calculation. However, in order
Shuairun ZHU +4 more
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FERMAT: An Alternative to Accuracy for Numerical Reasoning
Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), 2023 ACL ...
Sivakumar, J., Moosavi, N.S.
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Quantitative assessment of computational efficiency of numerical models for surface flow simulation
Journal of Hydroinformatics, 2023 To improve computational efficiency without accuracy losses for surface flow simulation, a dynamic bidirectional coupling model based on multigrid was applied. The flood-prone areas, where the inundation conditions were needed to detail, were discretized
Yanxia Shen, Chunbo Jiang
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