pressure drag

Based on energy equation, it is proposed that thermal drag in non-viscous horizontal duct should be equal to total pressure loss of air flow passing through heating zone, and not equal to static pressure loss.

根据能量方程提出水平无粘管流的热阻力应等于气流经过加热区的全压力降，而非静压力降；

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The more the afterbody flatness, the more the pressure drag.

后体越扁平，其压差阻力系数越大；

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The IPSA model solves the Navier-Stokes equations of each phase with the interphase interactions between two phases of water and air, including the interphase drag forces, interphase lift forces, interphase pressure and virtual mass forces.

IPSA模型对每一相求解N-S方程，并考虑水-气体两相间的相间相互作用，包括相间阻力、相间升力、相间压力和虚质量力。

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The pressure drag between headstock and tailstock is calculated as well. Heat accumulation phenomenon is analyzed when the train moves at high speed by overcoming resistance.

计算了车头车尾的压差阻力，分析了列车克服阻力高速运行时的热积聚现象，得到了系统的经济运行参数。

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Calculation of internal and external flow field and cowl pressure drag in the SUPERSONIC AXISYMMETRIC NOSE INLETS

超音速轴对称头部进气道的内、外流场及外壳压阻计算

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Cavity length depth ratio strongly influences flow field, total pressure recovery, drag coefficient.

凹腔长深比对流场特性 、 总压恢复 、 燃烧室阻力影响显著.

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The theoretical analysis and experimental results show that boundary layer separation will produce pressure drag.

理论分析和实验的结果说明:边界层分离将引起压差阻力.

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