Translation of "Unsteady flow" in German

The rolling process is assumed to be thermodynamically an unsteady flow process in an open system.

In the case of unsteady flow conditions, however, mixing of the components is substantially better than with laminar flow conditions.

In addition to an unsteady flow field, the multiscale nature of the problem poses further practical challenges.

Assuming that the fluid is at rest at infinity and that the pressure is defined to be zero there, this constant is zero, and thus:formula_4which is the Bernoulli equation for unsteady potential flow.

Wake modes are characterized by strong unsteady flow with chaotic behavior caused by the interaction being clearly more pronounced between the free shear layer and the cavity flow.

For unsteady flow states, the unknown entities are time-dependent and are therefore indicated by the subscript index k in the following.

Consequently, the heat accumulator is capable of serving as a type of “buffer” which can always compensate for the fluctuations in the quantity of heat in the unsteady waste heat flow (from the primary circuit) by liquid heat accumulator fluid being evaporated or gaseous heat accumulator fluid being condensed, wherein, nevertheless, a gaseous heat accumulator fluid which is more or less in equilibrium with the liquid phase is always available in the gas chamber of the heat accumulator and can be transferred to the expansion machine.

It has been found that the conversion of laminar flow conditions into unsteady flow conditions also depends, in addition to the Reynolds number, substantially on the geometry of the mixing chamber.

In addition, this more compact shape of the outlet cross-section having a substantially rectangular shape, by comparison with the narrower cross-section along a circular line, is favorable for the feeding back of disruptive variables in the outlet to the flow conditions in the mixing chamber, which in turn has a favorable effect on the conversion of a substantially laminar flow into unsteady flow conditions in the mixing chamber.

Matthias F. Neef has examined in his dissertation Analysis of the flapping flight by numeric flow design engineering the unsteady flow at a moved wing.

As a consequence of this steady or unsteady thermal flow-structure interaction distortions or damage of the wall material may occur.

Typical flow features are: detached flow, unsteady flow phenomena, interaction with separation related flow phenomena, for example, shock-boundary layer interaction and laminar-turbulent transition and its interaction with separation.

For the calculation of the pressure coefficient of unsteady flows, the temporal change in the velocity potential has to be considered.

Since, as a rule, these are unsteady flows, it may be sensible or necessary to simplify the relationships by averaging.

Furthermore, the technology known with regard to lorry engines is transferable at best to a limited extent to engines of passenger vehicles because, in contrast to lorries, passenger vehicles are generally operated with very different and frequently changing engine powers, and therefore the useable waste heat from the internal combustion engine greatly varies, wherein such unsteady heat flows are scarcely controllable by regulation technology for realizing the abovementioned Rankine cycles according to the prior art.

Take two cups, one Sheng to be oil check, another empty on the table will be filled with lubricating oil cup held high 30-40 cm away from the desktop and tilt, let oil flow slowly onto the empty cup, to observe the flow of lubricating oil, good quality flow should be slender even if without stop, oil flow unsteadiness and large flow, said lubricating oil has deteriorated.