Considerations on the spring analogy

Blom, F. J.

doi:10.1002/(sici)1097-0363(20000330)32:6<647::aid-fld979>3.0.co;2-k

Cited by 256 publications

(146 citation statements)

References 14 publications

Supporting

Mentioning

139

Contrasting

Unclassified

Order By: Relevance

“…Another approach within the framework of a linear spring system is the ball-vertex method [11], where additional springs are added that resist the motion of a vertex to its opposite face. For more work on the stabilization of spring systems and other self-adaptive mesh motion methods, we refer the reader to [3,7,12] and references therein.…”

Section: Itm Web Of Conferencesmentioning

confidence: 99%

“…For a review on mesh spring systems and their numerical solution, see eg. [3]. In the approach discussed here, the parameters k, l 0 , are treated as independent fields, and t is a constant.…”

Section: The Spring Analogymentioning

confidence: 99%

“…For unstructured triangular meshes around airfoils this idea was first studied by Batina [2], and revisited by many authors ever since (for a review see for example [3]). Often the main interest lies in the moving boundary problem, where during run-time of the simulation the geometry or its relative position with respect to the flow mesh changes.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Dynamic mesh optimization based on the spring analogy

Schmidt

Stoevesandt

2014

ITM Web of Conferences

View full text Add to dashboard Cite

Abstract. We present an implementation of the spring analogy for three dimensional meshes in OpenFOAM. All parameters of the spring system are treated as fields that can either be pre-defined by the user, or updated at each time step according to specified geometrical regions or diffusion equations. The purpose of the method is to provide a preprocessing tool for mesh optimization. We study three simple test cases, a deformed block, an airfoil and a hill, and we analyze the evolution of skewness, non-orthogonality and aspect ratio during the approach of dynamic equilibrium.

show abstract

Section: Itm Web Of Conferencesmentioning

confidence: 99%

Section: The Spring Analogymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dynamic mesh optimization based on the spring analogy

Schmidt

Stoevesandt

2014

ITM Web of Conferences

View full text Add to dashboard Cite

show abstract

“…As the velocity of the material interface node is known, the moving grid system is employed to avoid the negative grid volumes near the material interface. In this paper, the spring analogy (Blom, 2000) is applied to obtain other grids' velocities so that the whole fluid's grid nodes are moving together with the material interface. Then the motion of the material interface is tracked at any time.…”

Section: One Dimensionmentioning

confidence: 99%

“…First, the interface's location is obtained with all of these methods by solving some special formulations, which cannot show directly the motion of the interface. Second, these methods are all based on the stationary grids, where the state vectors near the interface are obtained through interpolation, and even a small error may lead to collapse or meaningless computation (Fedkiw, Marquina and Merriman, 1999;Blom, 2000) unless some special method is introduced at the interface, such as "Ghost Fluid Method" . Lastly, it is difficult for all of these methods to solve the multi-material flows accurately with a micro-deforming interface.…”

Section: Introductionmentioning

confidence: 99%

A Method Based on Riemann Problem in Tracking Multi-Material Interface On Unstructured Moving Grids

Wang

Hou-qian

2007

Engineering Applications of Computational Fluid Mechanics

View full text Add to dashboard Cite

ABSTRACT:The material interface is tracked by solving the arbitrary Lagrangian-Eulerian (ALE) formulation during the simulation of the compressible multi-material flow. The material interface is looked upon as a Lagrangian interface which can move freely and is composed of a number of edges of the unstructured grids and the state vectors of the points on the interface have two different definitions corresponding to the two different fluids. Then, Riemann problem is solved by the two-shock approximation method for general form of equation of state on both sides of the interface to track the interface accurately and the grids are moving automatically with the motion of the interface. The 1D spherically symmetric underwater explosion model is computed by using ALE method and the numerical results agree well with the experimental data, which indicates that the interface tracking method is reasonable. Furthermore, interaction between shock and water surface is also simulated to show that this method is suitable for solving microdeforming interface problem.

show abstract

Methylation ofp15 andp16 genes in adult acute leukemia

Chim

Tam

Liang

et al. 2001

Cancer

View full text Add to dashboard Cite

Providing a context for learning information and requiring learners to teach specific content has been demonstrated to enhance knowledge retention. To enhance students' appreciation of the role of science and specifically histology in clinical reasoning, disease diagnosis, and treatment, a new teaching format was created to provide clinical context, promote integration and application of science knowledge, and to foster peer teaching and learning: the Clinico‐Histologic Conference (CHC) for the Mount Sinai School of Medicine Histology course. Teams of six students were each assigned specific disease processes and were charged with creating oral presentations and handouts that taught their classmates about the clinical manifestations, etiopathogeneses, diagnoses, and treatments of the assigned processes, along with comparisons of normal histology to the pathology of the disease. Each team also created four questions, some of which were used on Histology written examinations. The physician facilitator evaluated the presentation and handouts. About two‐thirds of students agreed the CHC enhanced appreciation of the importance of histology, provided a context for integration and application of basic science to patient care and enhanced their ability to teach their peers. Student feedback demonstrated that the CHCs were successful in promoting teamwork, peer teaching, and the application of histology to diagnose diseases. The authors believe that teaching basic science content in this new format enhanced student learning and application of medical knowledge, and that this new teaching format can be adopted by other medical school courses. Anat Sci Educ. © 2011 American Association of Anatomists.

show abstract

Considerations on the spring analogy

Cited by 256 publications

References 14 publications

Dynamic mesh optimization based on the spring analogy

Dynamic mesh optimization based on the spring analogy

A Method Based on Riemann Problem in Tracking Multi-Material Interface On Unstructured Moving Grids

Methylation ofp15 andp16 genes in adult acute leukemia

Contact Info

Product

Resources

About