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Radial distributions of turbulent kinetic energy k in the tank with different geometrical jet flows was predicted based on CFD method adopted RNG k - ε turbulent model. Some detailed information about turbulence kinetic energy and pressure was obtained. The results showed that at the plane of z=0, pressure did not change significantly and the value was small. With the increase of the distance x, the...
The turbulent flow characteristic in jet mixer was predicted based on CFD method adopted RNG k - ε turbulent model. Some detailed information about the velocity and turbulence kinetic energy was obtained. The results show that normalized centerline velocities at different jet velocities have the similar distribution. With the distance increasing, it gradually decreases and the curve is to be smoother...
Pressure-flow relationships were measured in a cast of human upper and central airways at high-frequency and low stroke volume. In a dimensionless Moody plot of peak pressure and peak flow, data obtained at various frequencies and stroke volumes fell along a single curve, but diverged from the quasisteady flow behavior. Plotted against Re/ beta (ratio between Reynolds and Womersley numbers), the normalized...
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