争论
发表于 2025-3-23 11:33:53
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杂色
发表于 2025-3-23 14:02:02
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crescendo
发表于 2025-3-23 18:05:35
Experiments with a 1:4.2 model of a commuter aircraft with riblets in a large wind tunnelility, with deviations in the drag measurements of up to 3% of nominally identical conditions. This discrepancy was independent of the riblet film and was probably caused by lacking reliability of the wind tunnel balance. Nevertheless, the data show drag reductions by 1–6% with riblet film. The uppe
有权威
发表于 2025-3-24 00:38:19
High resolution conformal mesh computations for V, U or L groove riblets in laminar and turbulent botal data. Conformal mesh computations for semi-circular U, L, and intermediate form, riblets indicated a similar drag reduction in laminar flow, but also revealed important differences in the spanwise distribution of Cf across these riblets compared to the V-groove type. Subsequent turbulent computa
fibula
发表于 2025-3-24 04:53:40
Review: effect of the OLDs on near wall coherent structures; discussion and need for future worky decreasing the strength of the developing hairpins. Since the outer layer devices reduce the effect of a large scale structure by shedding vorticity of opposite sign, and the break up of the near wall structures depends to some extent on the outer layer disturbances, it is possible that there is a
Coronation
发表于 2025-3-24 08:31:24
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窒息
发表于 2025-3-24 11:35:33
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四牛在弯曲
发表于 2025-3-24 15:32:08
Book 1991 in this proceedings volume include riblets, LEBUs (Large Eddy Break-Up device), surface roughness, compliant surfaces and polymer additives. Riblets seem to be one of the most extensively studied devices in the past years. Reflecting this situation in the European community, there are six papers on
吗啡
发表于 2025-3-24 19:47:30
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不能根除
发表于 2025-3-25 01:40:56
E. Coustolshese lawscorrespond to the extended Pareto principle, a supreme, socioethicaldemocratic rule. According to this principle, progress is any increasein the indivi978-90-481-5842-3978-94-017-1504-1Series ISSN 0921-3384 Series E-ISSN 2352-2119