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采空区风流     
相关语句
  goaf airflow
     Based on the infiltration theory and flow law of pipeline leakage,as well as the mechan-ical and flow equations on the interface between goaf and its adjacent airflow passage, the paper presents a set of mathematical model for calculating1 airflow parameters on the longwall face. The finite element method is,used for calculating the goaf airflow parameters.
     本文利用渗流理论和管路漏流流动规律及采空区与相邻风流通道交界面上的力学关系、流量关系,建立了一整套采场风流参数计算数学模型,并介绍了解算采空区风流参数的有限元方法。
短句来源
  goaf air flow
     Based on the infiltration theory and flow law of pipeline leakage,as well as the mechan-ical and flow equations on the interface between goaf and its adjacent airflow passage, the paper presents a set of mathematical model for calculating1 airflow parameters on the longwall face. The finite element method is,used for calculating the goaf airflow parameters.
     本文利用渗流理论和管路漏流流动规律及采空区与相邻风流通道交界面上的力学关系、流量关系,建立了一整套采场风流参数计算数学模型,并介绍了解算采空区风流参数的有限元方法。
短句来源
  “采空区风流”译为未确定词的双语例句
     Computer Simulation in Spontaneous-combustion Gob′s Air Flowing Field, Temperature Field and Heat-pressure Field
     自燃采空区风流场、温度场及热力风压场的计算机模拟
短句来源
     Numerical simulation and visual display of air flow pattern in goaf
     采空区风流移动规律的数值模拟与可视化显示
短句来源
     TherefOre,this paPer is fOcused on research of two aspects: laws of work-face mining pressure andmovement of overlie rocks, laws of wind movement and prevention and cure of goafnature fire.
     因此,本文重点就工作面矿山压力与上覆岩层移动规律和采空区风流运移规律与采空区自然发火防治两个方面进行研究,
短句来源
     By FLUENT hydro-simulation soft, the wind flowing in the gob area is simulated and further analysis and validation is made about the mechanism of gas effusing and its prevention by air screen .
     并通过FLUENT流体模拟软件,对采空区风流流动进行模拟,进一步对上隅角瓦斯涌出和空气幕防治上隅角瓦斯涌出的机理进行分析和验证。
短句来源
     Applying the theory of nonlinear infiltration this paper has established the flow function equation of the nonlinear infiltration for two dimension plane goaf. The flow function value at each joint and the flow velocity vx, vy, v in each element have been evaluated by finite element, and the air flow line and isolach in the goaf can thus be obtained.
     本文应用非线性渗流理论建立采空区流场二维平面非线性渗流流函数微分方程,利用有限元技术求得各结点上的流函数值和各单元上的流速v_x、v_y、v_o在此基础上,得到采空区风流流线和等速线。
短句来源
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  相似匹配句对
     Numerical simulation and visual display of air flow pattern in goaf
     采空区风流移动规律的数值模拟与可视化显示
短句来源
     Determination of Spontaneous Combustion Region in Gobs and Numerical Simulation of Air-flowing Field
     采空区遗煤自燃带确定及风流场数值模拟
短句来源
     Managemen of Spontaneous Combustion Fire in Goaf
     采空区火灾的治理
短句来源
     The Changing Meaning of “Feng Liu”
     “风流”意义的嬗变
短句来源
     It Happene One Night
     一夜风流
短句来源
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Based on the infiltration theory and flow law of pipeline leakage,as well as the mechan-ical and flow equations on the interface between goaf and its adjacent airflow passage, the paper presents a set of mathematical model for calculating1 airflow parameters on the longwall face. The finite element method is,used for calculating the goaf airflow parameters. In calculation the flow quantity obtained in situ on longwall face are taken as boundary conditions. The results of calculation are basically in agreement...

Based on the infiltration theory and flow law of pipeline leakage,as well as the mechan-ical and flow equations on the interface between goaf and its adjacent airflow passage, the paper presents a set of mathematical model for calculating1 airflow parameters on the longwall face. The finite element method is,used for calculating the goaf airflow parameters. In calculation the flow quantity obtained in situ on longwall face are taken as boundary conditions. The results of calculation are basically in agreement with that measured in situ on longwall face.

本文利用渗流理论和管路漏流流动规律及采空区与相邻风流通道交界面上的力学关系、流量关系,建立了一整套采场风流参数计算数学模型,并介绍了解算采空区风流参数的有限元方法。利用现场实测流量结果作为边界条件进行了计算、计算所得采空区边界上的压力值与实测值吻合很好。

Applying the theory of nonlinear infiltration this paper has established the flow function equation of the nonlinear infiltration for two dimension plane goaf. The flow function value at each joint and the flow velocity vx, vy, v in each element have been evaluated by finite element, and the air flow line and isolach in the goaf can thus be obtained. According to the upper and lower limits of the air velocity corresponding to coal spontaneous combustion, the state and extent of the nonspontaneous combustion...

Applying the theory of nonlinear infiltration this paper has established the flow function equation of the nonlinear infiltration for two dimension plane goaf. The flow function value at each joint and the flow velocity vx, vy, v in each element have been evaluated by finite element, and the air flow line and isolach in the goaf can thus be obtained. According to the upper and lower limits of the air velocity corresponding to coal spontaneous combustion, the state and extent of the nonspontaneous combustion zone, the possible spontaneous combustion zone and the suffocative zone in the goaf of the fully mecha-nized face with top coal drawing have been determinated. The observation analysis of pressure manifestation, temperature variation and concentration variation of oxygen in the goaf show that the results of theoretical calculation is consistent with that of practice.

本文应用非线性渗流理论建立采空区流场二维平面非线性渗流流函数微分方程,利用有限元技术求得各结点上的流函数值和各单元上的流速v_x、v_y、v_o在此基础上,得到采空区风流流线和等速线。依据煤自燃所对应的风速上下限,得到放顶煤综采采空区不自燃带、可能自燃带和窒息带的形态和范围。对采空区矿压显现、采空区温度变化及氧浓度变化进行的观测表明,理论计算与实际观测所得结果基本一致。

Using finite element numerical simulation method,3 dimension indeterminate constant eqution of the fully mechanized caving coal face goaf airflow rule motion is solved.The numerical models (software program) can reflect distribution state of airflow pressure and velocity in the goaf.Combine practical example, the relation of the spontaneous combustion influence zone and airleakage air quantity in the goaf is gived.

采用有限元数值模拟方法求解了综采放顶煤工作面采空区风流运动规律的三维非定常气体渗流方程, 用该数值计算模型( 软件程序) 能够较为有效地反映出采空区内的风流压力和速度分布情况, 结合实例, 给出了采空区内自然发火影响带与漏风风量的关系.

 
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