百度试题 结果1 题目The figure shows the relationship between shear stress and velocity gradient for two fluids, A and B. Which of the following is a true statement?()。 相关知识点: 试题来源: 解析 A
Determining shear rate and/or shear stress from sonar based velocity profiles and differential pressureThe present invention provides a new method and apparatus for receiving signals containing information about a plurality of velocity profiles of a flow in a pipe and about a pressure gradient of the...
b.Also called:absolute viscositya measure of this resistance, equal to the tangential stress on a liquid undergoing streamline flow divided by its velocity gradient. It is measured in newton seconds per metre squared. Symbol:ηSee alsokinematic viscosity,specific viscosity ...
average actual fluid velocity [m/s; cm/s; ft/s] Greek Letters γ˙ shear rate [s−1] γ˙a apparent shear rate [s−1] ηo intrinsic viscosity [cp] θ contact angle [°] μj fluid j viscosity [cp], j o, w, p μapp0 apparent polymer viscosity at zero shear rate [cp] λ...
However, the stabilizing effect arises from the velocity shear, which, in combination with the horizontal density gradient, tends to create a stable stratification within the ML. The non-dimensional equilibrium ML depth and the velocity shear are shown to depend on LE/LA (=vbb/χ| ∥2). [...
“stick” phase of shear banding, where the band moves in a velocity much slower than the loading rate (v ≪ v0), while the sudden stress drop part corresponds to the rapid shear band operation with the sliding velocity is much larger than the loading rate (v ≪ v0)40,44...
The ratio of fluid flow rate to strain rate (which governs the dilation rate) determines the specific value of shear strength of shear bands. Note that the influence of the competition between dilatancy and fluid flow on shear strength is strongly pronounced for shear bands that are surrounded ...
The nine-components of the velocity gradient tensor reveal basic structure shapes in the forms of sheets, tubes and spherical blobs. Similarly, the reconstructed vorticity and strain rate structures also present shapes in the forms of tubes and sheets. More importantly, they appear to be within ...
To model the effects of simple shear, a linear actuator was used to apply shear to the top plane of a 3D neuronal-astrocytic co-culture and established that neurons are sensitive to shear strain magnitude and rate [57]. In mechanics, shearing deformation is a deformation mode consisting of ...
Incorporation and succeeding advection of this high-momentum fluid enhances the mixing rate along the edge of the cavity. After the pressure of the cavity sufficiently raises and recirculation zones form, the fluid ejected along with deflection of the shear layer. When the closeout angle is less ...