丽台科技近日宣布推出最新一代高阶专业工作站绘图卡——丽台NVIDIA Quadro FX 3700。Quadro FX 3700绘图卡针对交互式可视化功能提供了强大的处理能力。此外.QuadroFX 3700拥有512MB显存和256Bit显存位宽,基于65nm工艺的G92GL核心112...丽台科技近日宣布推出最新一代高阶专业工作站绘图卡——丽台NVIDIA Quadro FX 3700。Quadro FX 3700绘图卡针对交互式可视化功能提供了强大的处理能力。此外.QuadroFX 3700拥有512MB显存和256Bit显存位宽,基于65nm工艺的G92GL核心112个流处理器设计：可轻松地管理大规模运算，展开更多
The effective diffusion coefficients in mine ventilation-flows had been obtained as 4 to 200 m^2/s by matching the measured concentration-time curves with the advec- tion-diffusion equation.The turbulent diffusion coe...The effective diffusion coefficients in mine ventilation-flows had been obtained as 4 to 200 m^2/s by matching the measured concentration-time curves with the advec- tion-diffusion equation.The turbulent diffusion coefficients in the simple airways have good agreement with the equation proposed by Taylor.However,for complex airways in operat- ing mines,the evaluated effective diffusion coefficients in the mines show higher values than that calculated by the Taylor's equation.A numerical simulation model using with movements of discrete particles dosed into ventilation flows has been developed to simu- late diffusion phenomena of gas or dust in mine airways.Numerical simulations had been conducted on distribution of tracers in single airways with ordinary profiles of mean velocity velocity fluctuations and Reynolds stress.As one of results,long band of diffused particles is obtained at the single airway of 600 m in length,and large effective diffusion coefficient is evaluated as 20 m^2/s.展开更多
文摘丽台科技近日宣布推出最新一代高阶专业工作站绘图卡——丽台NVIDIA Quadro FX 3700。Quadro FX 3700绘图卡针对交互式可视化功能提供了强大的处理能力。此外.QuadroFX 3700拥有512MB显存和256Bit显存位宽,基于65nm工艺的G92GL核心112个流处理器设计：可轻松地管理大规模运算，
基金the National Natural Science Foundation of China(50375026)
文摘The effective diffusion coefficients in mine ventilation-flows had been obtained as 4 to 200 m^2/s by matching the measured concentration-time curves with the advec- tion-diffusion equation.The turbulent diffusion coefficients in the simple airways have good agreement with the equation proposed by Taylor.However,for complex airways in operat- ing mines,the evaluated effective diffusion coefficients in the mines show higher values than that calculated by the Taylor's equation.A numerical simulation model using with movements of discrete particles dosed into ventilation flows has been developed to simu- late diffusion phenomena of gas or dust in mine airways.Numerical simulations had been conducted on distribution of tracers in single airways with ordinary profiles of mean velocity velocity fluctuations and Reynolds stress.As one of results,long band of diffused particles is obtained at the single airway of 600 m in length,and large effective diffusion coefficient is evaluated as 20 m^2/s.
