• If you kick the ball hard enough for the airflow over the surface to become turbulent, then the drag force remains small and the ball will really fly.

    如果踢球的力量足够大,使得表面气流形成湍流阻力很小可能踢成高射炮。

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  • However, when the airflow is turbulent, the boundary layer sticks to the ball for longer.

    然而气流湍流时边界层维持时间较

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  • According to the law of conservation in the state of turbulent flow, the differential equation describing the airflow temperature distribution in drifting tunnel is derived.

    根据紊流状态守恒原理导出描述掘进巷道风流紊流流动温度分布微分方程

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  • According to the principle of conservation, differential equation which can describe airflow temperature distribution in state of turbulent flow in mine working face is deduced.

    守恒原理出发,导出描述矿井回采工作面风流紊流流动温度分布微分方程

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  • Airflow in underground railway station platforms is turbulent. Boundary conditions and proper turbulence model are required to determine when adopting CFD to simulate platform ventilation.

    地铁站台气流流动属湍流流动,采用CFD对站台通风方式进行模拟需要确定相关的边界条件适用的湍流模型

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  • The airflow in subway station is complicated three-dimensional unsteady turbulent flow.

    地铁车站空气流动极其复杂三维非稳态湍流流动。

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  • This paper analyzes and simulates the effect of the air change rate per hour (ACH) on contamination diffusion airflow field in turbulent clean-room of hole-board ventilation by using CFD.

    针对孔板送风乱流洁净室,运用C FD软件对不同换气次数条件下的气流组织污染物扩散进行数值模拟分析

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  • This paper analyzes and simulates the effect of the air change rate per hour (ACH) on contamination diffusion airflow field in turbulent clean-room of hole-board ventilation by using CFD.

    针对孔板送风乱流洁净室,运用C FD软件对不同换气次数条件下的气流组织污染物扩散进行数值模拟分析

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