The Digital Computing Research Of Underground Thermal Environment

More thermal flow will be produced during the tunnel when mining the ore under the mine. And the thermal flow will be formed thermal environment which is harmful to the helath and can reduce the productivity. Many researchers have done more research in this field and gain achievements. However, some insufficiency is still in their research. To get deeper understand for the underground thermal environment, to get more effective prevention for the thermal environment harm, this paper will try to adopt a new digital computing method----Lattice Boltzmann Method (LBM) to research this simulation. This paper will the learn the advantages and give up disadvantages during the previos research.This paper first analyzes the theory and method of the a LBM, then compares some important models of the LBM. After the comparison, find the accuracy and the convergence rate of the D2G9 model is better than others. So during the reaserch this paper will adopt this model. Beyond, this paper analyze the factor which will affect the result of the simulation.After the research of the basic theory, this paper mainly use this metod to do some applied research. This paper first establish the appropriative model for this research. During the simulation this paper find out some parameters which will be used. This paper calculate the temperature and the similarity criteria which is too important for the research. Then this paper simulate the thermal flow and analyze the result of the simulation. And this paper find the result is corresponded with the fact. This research can be looked as the basic of the complex situation. Then this paper analyze the factors during the research of the complex situation.After the research on the simple situation, this paper adopts the complex D2G9 model to simulate the complex thermal flow. During the research the complex is considered and some more factors is added to the simulation. On the basic of this work, the result will be more corresponded with the fact. After analyzing the result, the difference and contact during the simple and complex situation is be analyzed. During this analys this paper finds that this result is corresponded with the fact.After the research and analys, this paper finds that the LBM is a useful method for the simulation of the fluid flow, and this method has great potential. This method will be seen as one important method during the future research. This paper also give some useful reference comments to the managers in the prevention for the thermal environment harm.