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Scilab

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  Analyzed 3 months ago

(from the scilab homepage...) Scilab is a scientific software package for numerical computations providing a powerful open computing environment for engineering and scientific applications. Scilab is an open source software. Since 1994 it has been distributed freely along with the source code ... [More] via the Internet. It is currently used in educational and industrial environments around the world. Scilab is now maintained by Scilab Enterprises: http://www.scilab-enterprises.com/ Note that Scilab has been using code review since 2010 (explaining the diminution in term of number of commits). [Less]

2.28M lines of code

29 current contributors

4 months since last commit

31 users on Open Hub

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4.25
   
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Licenses: No declared licenses

DUNE-project

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  Analyzed 5 months ago

DUNE, the Distributed and Unified Numerics Environment is a modular toolbox for solving partial differential equations (PDEs) with grid-based methods. It supports the easy implementation of methods like Finite Elements (FE), Finite Volumes (FV), and also Finite Differences (FD).

255K lines of code

39 current contributors

5 months since last commit

13 users on Open Hub

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5.0
 
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Debian Science

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Claimed by Debian Analyzed about 1 year ago

The main goal of the Debian Science project is to provide a system with all the most important free scientific software in each scientific field.

73.4M lines of code

71 current contributors

about 1 year since last commit

2 users on Open Hub

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4.0
   
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nh3d

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  Analyzed about 1 year ago

A coupled mesoscale object-oriented model Developed using original Fortran code of NH3D model by : P. Miranda, M. Teixeira, R. Room, et al. (Univ. Reading, Lisbon and Tartu), V. Stepanenko (Moscow State University) ContentsMotivation Overview Equations Active Work References MotivationOverview ... [More] The model includes : The 1-dimensional lake model - Lake [6] The atmosphere shortwave (Clirad-SW) and longwave (Clirad-LW) solar radiation, [7-8] The specific aerosol advection-diffusion - SmolarkiewiczTEScheme - an object-oriented implementation of MPDATA [9] EquationsThe model solves the set of atmosphere hydro-thermodynamics equations in sigma-coordinates defined in [1-5] : Here t — time, x, y — horizontal coordinates, σ = (p - pt) / (psurf - pt) — vertical σ-coordinate, other variables and notations see in Model Definitions. (1) - (3) are the flow equations, (4) — the heat transfer equation, (5) — the continuity equation, (6) - (8) — equations for atmospheric moisture (vapour, rain and cloud drops). Values of Di, where i = u,v,w,Ѳ,… define the turbulence diffusion of the corresponsing variables, Ri, i = u,v,w,Ѳ,… — an additional terms denoting external driving forces. Thermodynamical variables are measured in mesoscale deviations from the background state. Applying the divergence operator to (1) - (3), as shown in [1] leads to : where L and M are the 2nd order linear differential operators, and f = f(x,y,σ). Active WorkReferencesP. M. Miranda. Gravity waves and wave drag in flow past three dimensional isolated mountains. - Phd Thesis, University of Reading, 1990, 191 pp. M. A. Teixeira, and P. M. Miranda. The introduction of warm rain microphysics in the NH3d atmospheric model. - Technical report, University of Lisbon, 1997, pp. 22. M. J. Miller, and A. A. White. On the non hydrostatic equations in pressure and sigma coordinates. Quart. J. R. Met. Soc., Vol. 110, 1984, pp. 515 - 533. В. М. Степаненко, П. М. Миранда, В. Н. Лыкосов. Численное моделирование мезомасштабного взаимодействия атмосферы и гидрологически неоднородной суши. - Вычислительные технологии. 2006. Т. 11. Избранные доклады Международной конференции по измерениям, моделированию и информационным системам для изучения окружающей среды: ENVIROMIS-2006 (Томск, Россия), часть 3. С. 118-127. В. М. Степаненко. Численное моделирование взаимодействия атмосферы с водоемами суши. Диссертация на соискание ученой степени кандидата физико-математических наук. Москва, 2007. 153 с. E. Dutra, V. Stepanenko, P. A. Miranda, P. Viterbo, D. Mironov, V. N. Lykosov. Evaporation and seasonal temperature changes in lakes of the Iberian Peninsula. - Proc. of the 5th Portuguese-Spanish Assembly of Geophysics and Geodesy, Sevilha, 2006. Chou, M.-D., M.J. Suarez, X.Z. Liang, and M.M.-H. Yan A thermal infrared radiation parameterization for atmospheric studies. - Technical report series on global modeling and data assimilation, NASA/TM-2001-104606, Vol. 19, 55 pp. Chou, M.-D., and M.J. Suarez, 2002: A solar radiation parameterization for atmospheric studies. - Technical report series on global modeling and data assimilation, NASA/TM-1999-10460, Vol. 15, 42-42. P. K. Smolarkiewicz, Len G. Margolin. MPDATA: A Finite-Difference Solver for Geophysical Flows. - Journal of Computational Physics, 1998, v. 140, p. 459-480. [Less]

403K lines of code

0 current contributors

about 8 years since last commit

0 users on Open Hub

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0.0
 
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protaeus

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  No analysis available

ProtAEusPurpose:To produce an object-oriented framework and multi-platform tool suite to ease prototyping and testing of new elements and approaches in the Analytic Element Method. Planned Features:Python implementation of a versatile Analytic Element framework. High-resolution numerical ... [More] differentiation operators. Specialized subclasses for modeling in the horizontal plane. Clear dichotomy built into the framework between the models of the physics and Mathematics. Swappable solver mechanism to relate Physics to the Element model. medium term Plugins for elements defined by functions contained in a dynamic linkage library. long term Potential field / vector field visualizer. long term Automated plugin generator. Requirements:Python 2.5 Numpy 1.0.1 wxPython 2.8 unicode All features will be implemented on at least the following three platforms: Mac OS X (Leopard), Kubuntu Hardy Heron (8.04) and Microsoft Windows XP SP2. Status:ProtAEus is still in design phase. The implementation is still subject to discussion. Any code posted until release 0.1 is subject to change. [Less]

0 lines of code

0 current contributors

0 since last commit

0 users on Open Hub

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0.0
 
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Mostly written in language not available
Licenses: GPL-3.0+