{"id":26067583,"url":"https://github.com/echeynet/windsimfast","last_synced_at":"2025-04-11T17:24:29.442Z","repository":{"id":108866585,"uuid":"248844343","full_name":"ECheynet/windSimFast","owner":"ECheynet","description":"A three-variate turbulent wind field (u,v and w components) is simulated in three-dimensions. 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The computational efficiency of the simulation relies on Ref. [1], which leads to a significantly shorter simulation time than the function windSim, also available on fileExchange. However,  only the case of a regular 2D vertical grid normal to the flow is here considered.\n\n\n## Content\nThe submission contains:\n- An example file Example1 that illustrates simply how the output variables look like.\n- An example file Example2, which is more complete, and which simulates a 3-D turbulent wind field on a 7x7 grid.\n- A data file exampleData.mat used in Example1.\n- The function windSimFast.m, which is used to generate the turbulent wind field.  A similar implementation of windSimFast.m was used in ref. [2].\n- The function getSamplingpara.m, which computes the time and frequency vectors.\n- The function KaimalModel.m, which generates the one-point auto and cross-spectral densities of the velocity fluctuations, following the Kaimal model [3]. I have corrected the cross-spectrum density formula used by Kaimal et al. so that the simulated friction velocity is equal to the target one. \n- The function coherence used to estimate the root-mean-square coherence, the co-coherence and the quad-coherence.\n- The function write2bts to convert the data into a .bts file (binary data). This function is still under testing and I ignore if it performs well.\n\nAny comment, suggestion or question is welcomed.\n\n\n## References\n\n  [1] Shinozuka, M., \u0026 Deodatis, G. (1991).   Simulation of stochastic processes by spectral representation.   Applied Mechanics Reviews, 44(4), 191-204.\n  \n  [2] Wang, J., Cheynet, E., Snæbjörnsson, J. Þ., \u0026 Jakobsen, J. B. (2018). Coupled aerodynamic and hydrodynamic response of a long span bridge suspended from floating towers.  Journal of Wind Engineering and Industrial Aerodynamics, 177, 19-31.\n  \n  [3] Davenport, A. G. (1961). The spectrum of horizontal gustiness near the ground in high winds.   Quarterly Journal of the Royal Meteorological Society, 87(372), 194-211.\n\n\n\n\n\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fecheynet%2Fwindsimfast","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fecheynet%2Fwindsimfast","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fecheynet%2Fwindsimfast/lists"}