Sentence examples for unsteady fluctuation from inspiring English sources

The unsteady fluctuation behind the building was successfully reproduced by URANS computation using the k ω shear stress transport (SST) model.

Unsteady fluctuations of forces were predicted numerically.

Proper Orthogonal Decomposition is also used to characterise the wake in terms of unsteady fluctuations.

The low noise concepts are based on the principle of phase cancellation of coherent unsteady fluctuations.

In this last case, unsteady fluctuations of the surface flow were clearly visible.

Reynolds number, in fluid mechanics, a criterion of whether fluid (liquid or gas) flow is absolutely steady (streamlined, or laminar) or on the average steady with small unsteady fluctuations (turbulent).

The presence of the tower generates a complex wind field, consisting of an averaged velocity deficit, unsteady fluctuations from vortex shedding processes and turbulence.

These differences are mainly due to the inherent unsteady fluctuations in the wake of buildings which are not detectable by RANS.

Finally, the unsteady fluctuations of wind flow around the buildings with and without the elevated design are analyzed in terms of instantaneous wind velocity, lift coefficient, energy spectral density, and turbulence intensity.

Not only did the two-dimensional tangential control jet improve the time-averaged pressure recovery at the inlet exit plane (13.3% at the lower half of the aerodynamic interface plane), it essentially eliminated the energy content of the distinct unsteady fluctuations which characterized the baseline flow field.

It is shown that by suitably arranging the actuators with prescribed phase variations, active flow control actuators using pulsed jets can achieve very low levels of near-field unsteady fluctuations and far-field noise, while maintaining the same effectiveness in flow control as those conventional designs without the phase cancellation implementation.