Impact jetting by a solid sphere
Witryna13 kwi 2024 · The jet impact from a collapsing bubble is an important mechanism of structural damage in underwater explosions and cavitation erosion. The Boundary Integral Method (BIM) is widely used to ... Witryna4 cze 2015 · Solid Surface Planets; Policy and Funding . Policy Sciences ... 2007], despite this being one of the important benchmarks to constructing a jetting model for spherical projectiles during oblique impacts [e.g., Vickery ... the pressure decays. Impact jetting begins when the deflection angle is greater than a critical value, which …
Impact jetting by a solid sphere
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WitrynaWe use a novel ultra-high-speed video camera to study the initial stage of the impact of a solid sphere onto a liquid surface, finding a high-speed horizontal jet which emerges immediately following the intial contact. For Re > 2 × 10 4 the jet emerges when the horizontal contact between the sphere and the liquid is only 12% of its diameter ... Witryna23 wrz 2024 · A small spherical bubble of high internal pressure is inserted into water at constant ambient pressure as a model of a laser-induced bubble. Its subsequent dynamics near a flat solid boundary is studied in dependence on the distance of the bubble to the boundary by numerically solving the Navier-Stokes equations with the …
Witryna1 maj 2024 · Impacts with low-blockage ratio, where a solid sphere drops into a liquid pool, are studied experimentally by Thoroddsen et al. (2004), who focused on the relationship of the impact jetting with Reynolds number and observed differences with high-blockage cases of drop impacts on wall (Field, Lesser, Dear, 1985, Lesser, …
Witryna13 kwi 2024 · The jet impact from a collapsing bubble is an important mechanism of structural damage in underwater explosions and cavitation erosion. The Boundary Integral Method (BIM) is widely used to simulate nonspherical bubble dynamic behaviors due to its high accuracy and efficiency. However, conventional BIM cannot simulate … Witryna12 sty 2024 · Thoroddsen, T. G. Etoh, K. Takehara, and Y. Takano, “ Impact jetting by a solid sphere,” J. Fluid Mech. 499, 139 ... “ Influence of an upper layer liquid on the phenomena and cavity formation associated with the entry of solid spheres into a stratified two-layer system of immiscible liquids,” Phys. Fluids 30(6), ...
WitrynaJetting during oblique impacts of spherical impactors Shigeru Wakitaa,, Brandon Johnson a, C. Adeene Denton , Thomas M. Davisonb aDepartment of Earth, Atmospheric, and Planetary Sciences, Purdue University, West Lafayette, IN, 47907, USA bDepartment of Earth Science and Engineering, Imperial College London, …
Witryna15 maj 2024 · While these estimates are based on thin plate theory, which does not accurately describe the jetting physics during impact of spherical bodies (Yang and Ahrens, 1995, Kurosawa et al., 2015), oblique impacts should produce more jetted material than head-on collisions as experimental results of the spherical impactor … flutter text auto new lineWitryna1 sie 2024 · Furthermore, by systematically varying the tank size and sphere diameter, we examine the influence of increasing wall effects on these guarded impact cavities and note the formation of surface ... greenheck group minneapolis addressWitrynaAt the beginning of the last century Worthington and Cole discovered that the high-speed jets ejected after the impact of an axisymmetric solid on a liquid surface are … flutter textarea new lineWitryna14 sie 2024 · As the sphere penetrates, the fabric is drawn inward, providing a fabric funnel through which a Worthington jet subsequently passes. We show that the presence of fabric increases the drag at entry and enables air-entraining cavities otherwise unattainable by hydrophilic spheres for the impact speeds tested. flutter text auto wrapWitrynaWe use a novel ultra-high-speed video camera to study the initial stage of the impact of a solid sphere onto a liquid surface, finding a high-speed horizontal jet which emerges immediately following the intial contact. For Re > 2 x 10(4) the jet emerges when the horizontal contact between the sphere and the liquid is only 12% of its diameter. flutter text animationWitryna12 kwi 2024 · An interpretation is that at the beginning of the event, the directional jetting and sustained finite extended source produces a directional acoustic wavefield. Then, as the jet flow decelerates (signal amplitude decreases), the extended/directional source effects correspondingly diminish and the infrasound source is mostly localized at the … greenheck heater controlWitryna27 sty 2004 · We use a novel ultra-high-speed video camera to study the initial stage of the impact of a solid sphere onto a liquid surface, finding a high-speed horizontal jet which emerges immediately following the intial contact. flutter text background color