發(fā)布時間：2018-05-13 21:07

  本文選題：巷道 + 溫度場�。� 參考：《煤炭學報》2017年12期

【摘要】：根據(jù)巷道圍巖溫度場的散熱特點,基于能量守恒定律和傅里葉定律,建立巷道圍巖非穩(wěn)態(tài)溫度場數(shù)學模型,利用有限體積計算方法編制解算程序并求解出巷道圍巖溫度場。建立巷道圍巖溫度場相似模擬實驗平臺,并利用實驗結果對有限體積計算方法的模擬結果進行實驗驗證,對比后發(fā)現(xiàn)有限體積法計算結果同相似模擬實驗結果吻合,兩者得到的巷道圍巖溫度場時空曲線變化趨勢一致,由此說明了應用該有限體積計算方法所建立數(shù)學模型和解算程序的正確性與科學性。利用計算模擬結果和相似模擬實驗結果對恒定風流溫度下巷道圍巖溫度場非穩(wěn)態(tài)變化過程中的影響因素進行分析,得到了巷道圍巖溫度場的變化規(guī)律,并以實例分析了巷道圍巖溫度場的非穩(wěn)態(tài)過程并計算出圍巖散熱量。
[Abstract]:According to the heat dissipation characteristics of surrounding rock temperature field of roadway, based on energy conservation law and Fourier law, the mathematical model of unsteady temperature field of roadway surrounding rock is established, and the calculation program is compiled by using finite volume calculation method and the surrounding rock temperature field of roadway is solved. The simulation platform of temperature field of surrounding rock of roadway is established, and the simulation results of finite volume calculation method are verified by experiment results. The results of finite volume method are in good agreement with the results of similar simulation experiments. The temporal and spatial curves of surrounding rock temperature field obtained by the two methods are consistent with each other, which shows the correctness and scientificalness of the mathematical model and program established by the finite volume calculation method. The influence factors of the unsteady change of surrounding rock temperature field of roadway under constant air flow temperature are analyzed by using the simulation results of calculation and similar simulation experiment results, and the variation law of surrounding rock temperature field of roadway is obtained. An example is given to analyze the unsteady process of surrounding rock temperature field and to calculate the heat dissipation of surrounding rock.
【作者單位】： 中國礦業(yè)大學(北京)資源與安全工程學院;
【基金】：國家自然科學基金資助項目(51574249)
【分類號】：TD727.2

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本文編號：1884798