The Development And Appliance Of Subway Station's Heat Environmental Emulators Based On All-purpose CFD Software

In china, with the large-scale constructing of the subway. The heat environment of thesubway station has been paid more and more attention by both the researchers and thedesigners in the relevant domains. No doubt that the CFD analysis software makes aneminent roll in the heat environmental design of the subway station as a aided toolrecently. However, from the viewpoint of convenient, efficiency, reliability that isconcernment for the engineering designs, the direct application for CFD tools isdemanded for the stylist. Not merely but most effective mean to satisfy this realisticrequirement is to develop the appropriative CFD platform for the specialty fields.This thesis takes an effort in the foundation of the CFD analysis platform in the fieldof the subway station's heat environmental design based on the commercial CFD code(PHOENICS) using POWERBUILDER and VC++. Some functions have been gottensuch as, building the CFD model; the data transfer pattern and the interactiveperforming between PHOENICS and special CFD platform (SIMU_DDCZRHJ); thereal time data storage of the computational results. Through the discerning of thesubway's category, spatial data, physical boundary data and other kinds of data can bedecided dynamically and be put into the database. Then CFD model can be erected.With the transfer function of the DLL(dynamically linked library)'s aid the library ofthe CFD models which is the pattern of data transferring between the common CFDsystem and the special one have been obtained; the interactive performing isactualized by the exertion of WINS 32 API. The computational results' storage is donewith the mechanism of the patrol to the given director with a fixed interval time forthe interested files.The most difficult point that should be faced is the spatial entity's restructuring.According to the theory of RDBMS and the spatial data's analysis approach which isadvanced by the author the simplified spatial database model that suit for the subwaystation's heat environmental CFD simulation have been set up. Then the problem ofthe spatial restructuring is solved correspondingly effectually. Something ought to bementioned is that this model offers the preliminary basement for the foundation of thespatial database model to the CAD/CFD system for the subway station.The case study has been executed under the condition of the air conditioning withSIMU_DDCZRHJ in an island two-floor non-segregated screen subway station. Somedefinite problems have been discussed. Meanwhile the character of SIMU_DDCZRHJsuch as, convenient, efficiency, reliability is validated.