Study On The Method For Dealing With Meteorological Parameters For Natural Ventilation Design In Shenzhen

China’s traditional architectural layout facing south, pay attention to the draft, allthe simple use of the principle of natural ventilation. Building natural ventilationapplication status of research, however, found that the New Town, an increase in thecity’s high-rise buildings intensive trend is obvious, the architect still most of the energyin the pursuit of the appearance, ignore the climate and natural environment conditionspassive energy-saving factors, natural ventilation design encountered many difficultiesand challenges. Research further by building designers, currently one of the maindifficulties of the natural ventilation design technical level, it is inadequate due to theselection of the scientific basis of the boundary conditions of the simulation software.The conventional CFD city simulation of wind environment, the entire city only inaccordance with the winter and summer is divided into two dominant wind led insidethe building wind environment, with the outline of the building, the layout and theheight difference, but found a lot of study and researchlarger changes, if not accurateenough natural ventilation period leading wind speed and direction, the simulationresults with field measurement larger difference, is likely to completely subvert therequirements of energy-saving design expectations. Reasonable selection of windenvironment simulation area boundary conditions become the prerequisite for us toensure the accuracy of computer simulations, this article will also benefit from naturalventilation with the design meteorological parameters angle data processing method ofreasonable simulation of natural ventilation with meteorological parameters.In this paper, three more than the status quo and the reasons to carry out theresearch:1) under natural ventilation airflow comfort and thermal comfort factor analysis,analysis of the decisive factors affecting natural ventilation, to discuss what kind ofmeteorological data should be used as boundary conditions to simulate naturalventilation design;2) City fluctuating wind characteristics principles of analysis and data processingmethods and summarizes the mathematical description of the parameters of theindividual characteristics of fluctuating wind model provides mathematical basis for thenext step fluctuating wind characteristics parameters processing;3) under the conditions of natural ventilation of indoor and outdoor wind speed the mean pulsation characteristics related analysis: determine the room when the meanpulsation characteristics parameters depend on whether the outdoor when the mean andfluctuating characteristic parameters to determine whether the relevant characteristicparameters positively correlated fluctuation of the study on the basis of the relevantparameters between the parameters and airflow comfort and thermal comfort.To build Shenzhen city building natural ventilation design model withmeteorological parameters: the application of heat to adapt the model to determine thenatural ventilation design with meteorological parameters temperature range, theapplication airflow comfort model to determine wind speed interval, building naturalventilation through two parameters determined interval screeningdatabase design withmeteorological parameters, and partition map out the natural ventilation design datatable with the dominant wind speed.