These properties depend, among other factors, on the buildings’ architecture. The interaction between buildings and atmospheric phenomena produces microclimates in the nearby environment, characterised by air properties that differ from the outside average. Their complexity derives from the interaction of factors ranging from fluid mechanics to thermodynamics showing nonlinear behaviours. Such problems involve the understanding and calculation of atmospheric behaviours. Numerical simulations now enable us to tackle complex physical problems like never before. Undeniably, this has been triggered to a large extent by the growth in speed and memory capacity of electronic computers. These improved tools have been progressively considering a greater number of variables and data that scientists have come to deal with. Subsequently, over the last decade, there has been an enormous growth in the quantity of simulation programs and in their energy modelling capabilities. The current need for energy efficiency has led to the development of increasingly precise tools for energy modelling in buildings. The energy efficiency of buildings and cities is directly related to the preservation of energy resources and the buildings’ or cities’ effects on climate change due to the use of conventional energy sources. FreeFem++ is also considered a tool for data analysis (post-processing) able to help engineers and architects with building energy-efficiency-related tasks.Įnergy saving is of increasing concern to the community. The main contribution of this research is, in fact, the enhancement of FreeFem++ usability by proposing a simple intuitive method for the creation of building geometries and their respective meshing (pre-processing). On the basis of this analysis, it can be concluded that FreeFem++ is the only program displaying the best features for the thermal performance simulation of these specific outdoor spaces, excluding the currently unavailable easy interaction with architectural drawing programs. In order to establish the suitability of FreeFem++ for the performance of simulations, the most widely employed energy simulation tools able to consider a proposed architectural geometry in a specific environment are compared. The great potential of this mathematical tool can be realized through its complete system integration within CAD (Computer-Aided Design) software such as SketchUp or AutoCAD. These simulations include microclimate tests that describe the interactions between a building architecture and its local exterior. In this context, the present study aims to demonstrate the advantages of the FreeFem++ open source program for performing simulations in architectural environments. This is a clear disadvantage when it comes to streamlining the design process in relation to the whole-building energy optimization. In addition, the surrounding exterior spaces of the building, including the inner courtyards, hardly present a specific treatment distinguishing these spaces from the general external temperature in the thermal simulations. I would appreciate any advice.The energy modelling software tools commonly used for architectural purposes do not allow a straightforward real-time implementation within the architectural design programs. This occurs only when I have a huge amount of cells (like 40) in the normal direction. When I am trying to extrude it in the third dimension I keep getting the error " Warning: Could not orient normal of surface 37". Currently I am working on a 2-D curved surface with a low-Re boundary layer mesh. Messages sorted by: įirstofall, thanks for your help in the past.Next message: Can arcs be exactly pi radians?.Previous message: Extude and Scale Surface.Extrude 2-D curved boundary layer mesh: Could not orient normal of surface look mlook at me.com Extrude 2-D curved boundary layer mesh: Could not orient normal of surface
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