Ripple Formation through an Interface Instability from Moving Growth and Erosion Sources

Friedrich, R.; Radons, Günter; Ditzinger, Thomas; Henning, Axel

doi:10.1103/physrevlett.85.4884

Cited by 41 publications

(22 citation statements)

References 22 publications

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“…13 They assumed that the surface profile evolves according to a generalized Kuramoto-Sivashinsky equation, which takes into account the inhomogeneity of the disturbance. The competition between a negative surface tension , which tends to increase the area of the surface, and a positive coefficient , which accounts for the surface diffusion, leads to a periodic structuring of the surface with wavelength ϳͱ/.…”

Section: Discussionmentioning

confidence: 99%

Ripple formation induced in localized abrasion

et al. 2003

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Section: Discussionmentioning

confidence: 99%

Ripple formation induced in localized abrasion

et al. 2003

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“…For example, the investigation of pattern formation processes occurring in semiconductor gasdischarge devices used for the conversion of infrared images into the visible has led to the improvement of the technical characteristics of the device [19]. Another example is the successful suppression of undesired patterns occurring by abrasive waterjet cutting [20]. Finally, we want to mention works on control of the traffic flow.…”

Section: Introductionmentioning

confidence: 98%

Rotating hexagonal pattern in a dielectric barrier discharge system

et al. 2004

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Here, we report on the experimental observation of a rotating hexagonal pattern in a continuous dissipative medium. The system under investigation is a planar dielectric barrier gas-discharge cell. The pattern consists of a set of current filaments occupying the whole discharge area and rotating as a rigid body. The symmetry of the rotating hexagons is lower than the symmetry of the stationary hexagonal pattern. We study the dynamics of the pattern, especially peculiarities of its rotational velocity. The temperature of the gas is found to be an important quantity influencing the rotating hexagons.

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“…Microscopic analysis showed that the eroded surface of target materials 1Cr9Mo1VNbN, 1Cr11MoCo3W2, and 1Cr11MoV had some regular erosion ripples as previously seen in the literature, 14,18,19,21,22 while the eroded surface of target materials 2Cr11MoVNbN and 2Cr12NiMo1W1V had only random concaveconvex scars, which is shown in Figure 4. Apparently, not all plastic materials can produce erosion ripples.…”

Section: Single-angle Erosion and Ripple Formationmentioning

confidence: 66%

Surface ripple and erosion rate of stainless steel under elevated temperature erosion by angular solid particles

Wang

Cai

Mao

et al. 2013

Proceedings of the Institution of Mechanical Engineers, Part J:

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The actual industrial erosion caused by the impingement of particles swarming from different perspectives is often different from the single-angle impingement of solid particle in the erosion test. In order to predict the erosion problems in practical engineering more reasonably, a series of elevated temperature erosion tests were conducted to study the surface ripple and enduring erosion behavior of heat-resistance stainless steel suffering from the single-angle impingement or multiangle alternative impingement of angular particles. The test results indicated that the surface of target materials with good ductility produced large-scaled transverse ripples and small-scaled longitudinal ripples after experienced a long-time single-angle impingement of angular solid particles under a 773-873-K high-temperature environment. The longitudinal ripples could accelerate the emergence and development of large-scaled transverse ripples. Initial erosion scars caused the differentiation of material deformability and plastic flow in the different locations of concave-convex scars, which further drove the evolution of the surface morphology from disordered scars to coherent ripples under the sustained attack of high-velocity particles. The more dimples the eroded surface of target material produced, it was easier for the target materials to produce coherent ripple. However, the interactions among the erosion behaviors with different attack angles made initial concave-convex scars difficult to evolve to coherent ripples under the multiangle alternative erosion. Further statistical results of erosion tests indicated that it can basically satisfy the practical engineering need by taking the erosion rate of initial surface layer as the erosion rate of the target material within the whole life cycle.

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Ripple Formation through an Interface Instability from Moving Growth and Erosion Sources

Cited by 41 publications

References 22 publications

Ripple formation induced in localized abrasion

Ripple formation induced in localized abrasion

Rotating hexagonal pattern in a dielectric barrier discharge system

Surface ripple and erosion rate of stainless steel under elevated temperature erosion by angular solid particles

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