Study On The Inheritance Of Natural Ventilation In Traditional Villages And Stilted Buildings In Western Hunan Based On Wind Environment Simulation

In this paper,the traditional villages and residential representative stilted buildings in western Hunan are taken as the main research object,and Ansys CFX numerical simulation technology is used to explore the heritage value of traditional stilted buildings in the natural ventilation of new farm houses,in order to understand the traditional stilted building space elements,what is conducive to the natural ventilation of the modern new rural housing,what is not conducive to the natural ventilation of the new rural housing,and play a guiding role in the design and construction of the new rural housing.Firstly,this paper introduces the research background,research purpose and significance,research objects and contents,and research methods of this paper.The literature on natural ventilation of traditional residential buildings at home and abroad is also sorted out.Secondly,the paper introduces the basic situation of traditional villages and folk houses in Xiangxi region.It includes the basic situation of Xiangxi region,the distribution of traditional villages and the main types of traditional dwellings.Thirdly,the research object,simplified basis,simulated boundary conditions,simulated process and research elements are described.Then,the influence of traditional village site selection and layout,traditional stilted buildings’ figure,spatial layout and shape on natural ventilation was studied.In this paper,the magnification coefficients of outdoor wind speed of traditional villages with different sites and layouts are compared,and the results show which sites and layouts are favorable for ventilation in summer and which are favorable for wind protection in winter.The average outdoor wind speed of traditional stilted buildings with different plane forms,hoisting forms and floor Numbers is compared,which plane forms,hoisting forms and floor numbers are beneficial to ventilation in summer and which are beneficial to wind protection in winter are obtained.In order to study the influence of spatial layout and modeling factors on wind environment,the paper sets reference objects and ideal objects for influencing factors such as height,width and depth,doors,windows and thresholds,attic,corridor and walkway,etc.Finally,this paper discusses the inheritance of different spatial elements of traditional stilted buildings in the natural ventilation of new rural residence,summarizes the ventilation strategy and puts forward some guiding Suggestions on the natural ventilation of new rural residence.In addition,in view of the above research strategies,the paper optimizes the actual cases and puts forward two design schemes of modern new farm house for reference.This paper comprehensively uses induction method,comparative analysis method,literature analysis method,numerical simulation method and field investigation method to study the application and inheritance of the natural ventilation strategy of traditional stilted buildings in the natural ventilation of new rural housing,hoping to play a certain guiding role in the construction of new rural housing.