Exact(5)
A flow acceleration of ~10 m/s, the equivalent of accelerating fluid from 0 to 10 mm/s in 1 ms, would be required to generate slip of ~1 μm/s.
Data from all employed sources give evidence of a flow acceleration (in some cases, rather sharp) above roof level.
The only correction needed to correctly predict flame speeds in this case is due to the finite aspect ratio of the slot used to inject the premixed gases which induces a flow acceleration in the measurement region (this correction can be evaluated from velocity measurement in the slot section or from an analytical solution).
For two years, this reproduction fell into a flow acceleration.
Settings for the rising time and the expiratory sensitivity were a support sensitivity of 0.2 s and an expiratory sensitivity of 25% for the NPB 840 ventilator, and a flow acceleration of 90% and an expiratory sensitivity of 25% for the DE4 ventilator.
Similar(3)
The other indirect signs of RVD, i.e., dilatation of the right PA, a systolic pressure gradient between the RV and right atrium (RA) >30 mmHg, and a PA flow acceleration time <80 ms, have also been used by several authors in defining RVD [15, 26, 30, 31, 32].
However, a purely morphologic classification of hillslope elements based on topographic attributes, such as the one proposed by Ruhe (1960) is preferred for hydrological applications because it provides an indication of flow acceleration on each hillslope element.
A dynamical imbalance leads to a mispecification of the initial flow acceleration, (dot {{mathbf u}}).
Related(1)
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