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Showing 1 to 7 of 7 for “"Flexible tubes"”.
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Wave propagation in flexible tubes
… dissipation of energy carried by the waves along flexible tubes. In this research, it is found that the degree of dissipation in flexible tube were not only affected by the mechanical properties of the wall property and viscosity of liquid but also by the other factors including initial pressure …
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Capillary flows in flexible structures
… we investigate capillary flows in extremely flexible, millimeter-scale cylindrical elastic tubes. We demonstrate that surface tension can cause sufficiently flexible tubes to collapse and coalesce spontaneously through non-axisymmetric buckling, and develop criteria for the initial …
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A Theory for Wheezing in Lungs
… oscillations observed when air flows through flexible tubes. In shell theory, the use of rotors from geometric algebra has enabled us to develop improved physical understanding of how changes of curvature, which are of direct importance to constitutive laws, come about. This has enabled a …
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Milk dispenser for variable fat content
… two, gallon-size milk jugs, each attached to a flexible tube at the cap interface. The flexible tubes passes through a ratio selection mechanism that the user can rotate to select the desired type of milk. The mechanism compresses the tubes to achieve the appropriate ratio, and finally the tubes …
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The effects of wall inertia and axial bending on instabilities in flow through an elastic-walled tube
In certain parameter regimes, steady flow through flexible tubes is unstable to self-excited oscillations. Whittaker et al. (2010, Proc. Roy. Soc. A 466) solved an asymptotic model for the onset of self-excited oscillations in a long, thin-walled,flexible tube clamped between two rigid tubes, with …
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Modeling Fluidelastic Instability of Tube Bundles Subjected to Two-Phase Flows
… model, discretizes the flow path between the tubes, known as flow channel, into stationary cells whose size varies with tube displacement. Each control volume is assigned a void fraction consistent with statistical distributions, and interphase slip is incorporated to capture differences in …
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Computational and experimental time domain, one dimensional models of air wave propagation in human airways
… velocity waveforms when air pulses propagate in flexible tubes with different mechanical and geometrical properties. The experiments have shown that the arrival of reflected air waves occurs in correspondence of the theoretical timing once the wave speed is known. Reflected backward compression …