site stats

Longitudinal vortices in granular flows

Web11 de abr. de 2024 · Illustration of a major problem for natural laminar flow on swept surfaces: Crossflow Instability. For sweep >10deg, spanwise pressure gradients in BL lead to longitudinal corotating vortices. Even in favourable chordwise pressure gradients, amplification and transition can occur . 11 Apr 2024 11:00:21 WebA Vortex Generator Flow Model Based on Self-Similarity. ... in effect, that the stream-wise (uz, along the longitudinal vortex axis) and the rotational (uӨ) flows are inter ... Hansen, M. O. L., Okulov, V. L., “Helical structure of longitudinal vortices embedded in turbulent wall-bounded flow,” J. Fluid Mech., Vol. 619, 2009 ...

Symmetry Free Full-Text Flow Symmetry and Heat Transfer ...

Web23 de set. de 2004 · Nature - A Taylor vortex analogy in granular flows. Skip to main content. ... Forterre, Y. & Pouliquen, O. Longitudinal vortices in granular flows. Phys. … Web10 de abr. de 2024 · The experiments of Meng et al. [23], using oil as the working fluid, have shown that in the laminar flow regime, the multi-longitudinal vortices created by the alternating elliptical cross-section enhance the heat transfer with less friction increase compared with the existing enhanced tubes, such as twisted tape inserted tube and … gmail account won\u0027t update https://cdmestilistas.com

Longitudinal Vortices in Granular Flows - WordPress.com

Web30 de ago. de 2001 · Measurements of the surface velocities imply that this instability is associated with the formation of longitudinal vortices in the granular flow. From the … WebLongitudinal Vortices in Granular Flows Y. Forterre and O. Pouliquen Institut Universitaire des Systèmes Thermiques et Industriels (IUSTI), 5 rue Enrico Fermi, 13453 Marseille cedex 13, France (Received 20 December 2000; revised manuscript received 6 March 2001) We present a new instability observed in rapid granular flows down rough … Web21 de dez. de 2024 · Computer graphics visualization techniques for application on data from Computational Fluid Dynamics (CFD) simulations of the vortex rope, a phenomenon present in hydraulic turbines operating in off-design conditions, were devised. This included not only objects for visualization (what to visualize) but also methods of the visualization … gmail account zonder telefoonnummer

Longitudinal ridges imparted by high-speed granular flow …

Category:Cellular automata model of gravity-driven granular flows

Tags:Longitudinal vortices in granular flows

Longitudinal vortices in granular flows

Longitudinal ridges imparted by high-speed granular flow …

Web7 de ago. de 2007 · We outline an extension of the hydrodynamic equations for dense flows of identical, inelastic spheres that incorporates an additional length scale in the expression for the collisional rate of dissipation. This length … Webrotary filtration device with flow-through inner member专利检索，rotary filtration device with flow-through inner member属于·带有内装泵的过滤器专利检索，找专利汇即可免费查询专利，·带有内装泵的过滤器专利汇是一家知识产权数据服务商，提供专利分析，专利查询，专利检索等数据服务功能。

Longitudinal vortices in granular flows

Did you know?

Web10 de abr. de 2024 · Due to the shallowness of the coastal areas, the flow can be safely regarded as quasi-two-dimensional, and the typical macro-vortices can be regarded as two-dimensional flow structures. 33,34 33. I. Zhabin and N. Luk'yanova, “ Sub-mesoscale vortex streets in the region of the Shantar Islands (Sea of Okhotsk), according to satellite … Web30 de ago. de 2001 · Stability analysis of rapid granular chute flows: formation of longitudinal vortices. In a recent article (Forterre & Pouliquen 2001), we have reported a new …

WebIn a recent article ([Forterre & Pouliquen 2001]), we have reported a new instability observed in rapid granular flows down inclined planes that leads to the spontaneous formation of longitudinal vortices. From the experimental observations, we have proposed an instability mechanism based on the coupling between the flow and the granular temperature in … Web24 de out. de 2024 · The experimental work and stability analysis on rapid granular flows conducted by Forterre and Pouliquen 20,21 showed for the first time the spontaneous …

Web21 de dez. de 2006 · A cellular automata model is used to simulate a variety of granular chute flows. The model is tested against several case studies: flow down a chute, flow past an obstacle, chute flow in which complex, counter-rotating vortices result in streamwise surface stripes and flow near a boundary. WebThis paper reports experimental findings on the flow of sand down a steep chute. Nearly all granular flow models have a maximum value for the friction and therefore predict that …

Web30 de ago. de 2001 · We present a new instability observed in rapid granular flows down rough inclined planes. For high inclinations and flow rates, the free surface of the flow experiences a regular deformation in the transverse direction. Measurements of the surface velocities imply that this instability is associated with the formation of longitudinal …

Web1 de jun. de 2001 · This website requires cookies, and the limited processing of your personal data in order to function. By using the site you are agreeing to this as outlined in our privacy notice and cookie policy. bolo knife sheathWeb14 de abr. de 2024 · In view of the gas-liquid two-phase flow process in the oxygen-enriched side-blown molten pool, the phase distribution and manifold evolution in the … bolo law termWeb25 de jun. de 2001 · Measurements of the surface velocities imply that this instability is associated with the formation of longitudinal vortices in the granular flow. From the … gmail achat