total drag

The speed distribution curves of the drag reducing fluid at the near wall surface will tend to approximate to the laminar speed curves of a Newtonian fluid, but there lacks a total congruence of these two curves.

减阻流体的速度分布曲线在近壁面处与牛顿流体层状速度曲线趋近，但二者并不完全重合；

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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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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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