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Gob Location Of Numerical Simulation Of Combustion And Similar Material Simulation

Posted on:2010-05-07Degree:MasterType:Thesis
Country:ChinaCandidate:Z WangFull Text:PDF
GTID:2131330332462592Subject:Mining engineering
Abstract/Summary:PDF Full Text Request
This paper has AI You Mine topics, for example, put forward the concept of fuzzy permeability coefficient, established a fuzzy analysis and fuzzy-based differential equations and various boundary condition, the calculation of stope gas seepage problem fuzzy math model. Determined according to fuzzy differential equations of the issue, put forward the fuzzy analysis and calculation of the fuzzy structured element method, using fuzzy structuring element method to the question of interpreting the fuzzy-valued functions, fuzzy-valued function of the differential, sense of Riemann integral of fuzzy-valued functions and fuzzy differential equations of the structure, and so on, made a systematic study. The results of theoretical studies for the prevention of spontaneous combustion in gob areas provides an effective means for mining the location of the venue of spontaneous combustion and the ignition location forecasts predict a good practical value and theoretical significance.Numerical simulation of CFD software, CFD software is a computational fluid dynamics software for short, is used for flow field analysis, flow field, flow field prediction software. With the CFD software that can analyze and display occurred in the flow field phenomena, in a relatively short period of time, can predict performance, and by virtue of changing the various parameters to achieve optimal design results. CFD numerical simulation enables us to more deeply understand the problem generated by the mechanism to provide guidance for the experiment, saving experiments in human, material and time, and the experimental results of the draw order and laws play a very good guide effect. Computational fluid dynamics software FLUENT with mined-out area on the direction of the internal airflow simulation, simulate the airflow distribution.The paper also carried out similar material simulation, for the mined-out area of spontaneous combustion in for a number of simulation experiments, observations, and describe a certain amount of wind mined-out area under the airflow distribution; depicts the mined-out area under the airflow conditions at different locations of air leakage distribution and its impact on mined-out area the impact of spontaneous combustion, image to verify the correctness of the above-mentioned theory, achieved good results.The study is the National Natural Science Foundation of China (based on the theory of fuzzy seepage pit gas emission and the location of Spontaneous Combustion Research: 50,774,041) sub-topics.
Keywords/Search Tags:Fuzzy seepage, Spontaneous combustion, Numerical Simulation, Similar Material Simulation
PDF Full Text Request
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