3 edition of **Interactive solution-adaptive grid generation procedure** found in the catalog.

Interactive solution-adaptive grid generation procedure

- 357 Want to read
- 27 Currently reading

Published
**1992**
by National Aeronautics and Space Administration in Washington, DC
.

Written in English

- Fluid dynamics.,
- Numerical grid generation (Numerical analysis)

**Edition Notes**

Other titles | Interactive solution adaptive grid generation procedure. |

Statement | Todd L. Henderson, Yung K. Choo, and K.D. Lee. |

Series | NASA technical memorandum -- 105432., NASA technical memorandum -- 105432. |

Contributions | Choo, Yung K., Lee, Ki D., United States. National Aeronautics and Space Administration. |

The Physical Object | |
---|---|

Format | Microform |

Pagination | 1 v. |

ID Numbers | |

Open Library | OL15360963M |

A NAS Multidimensional Wave Models for Solution-Adaptive Grid Generation Vigyan, Inc. 30 Research Drive Hampton, VA Paresh Parikh () Abstract: This project will develop a solution-adaptive unstructured grid generation methodology for two-dimensional flow, using wave orientation information derived. SIAM Journal on Numerical Analysis , () A solution-adaptive lattice Boltzmann method for two-dimensional incompressible viscous flows. () A survey of grid generation techniques in computational fluid dynamics. 21st Aerospace Sciences by:

56 PLASMAS AND FLUIDS It has been known for some time that the aerodynamic designs that operate at high subsonic Mach numbers are most efficient if they can avoid the generation of shock waves. But such flows are mathemati- cally isolated from one another and . Algebraic grid generation a grid generation method in which the mesh is interpolated from the bounding, geometry-constrained edges. See also differential grid generation. Algebraic multigrid a technique for speeding up the solution of an iterative technique by reducing the number of iterations necessary for convergence.

Md. Asif Nashiry, M. H. A. Khan, and J. Rice, “Controlled and uncontrolled SWAP gates in reversible logic synthesis,” in Proc. 9th Conference on Reversible Computation (RC), July , Kolkata, India. Mozammel H A Khan and Jacqueline E. Rice, “Improved Synthesis of Reversible Sequential Circuits,” IEEE International Symposium on Circuits and Systems (ISCAS), 22 – 25 May, In this paper, a new grid generation system is presented for the parallel generation of unstructured triangular surface grids. The object-oriented design and implementation of the system, the internal components and the parallel meshing process itself are described. Initially in a rasterisation stage, the geometry to be meshed is analysed and a smooth distribution of local element sizes in 3-D.

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Get this from a library. Interactive solution-adaptive grid generation procedure. [Todd L Henderson; Yung K Choo; Ki D Lee; United States. National Aeronautics and Space Administration.]. Solution adaptive Cartesian grid methods for aerodynamic flows with complex geometries Michael J.

Aftosmis Wright-Laboratory / NASA Ames Mail Stop TB-2 NASA Ames Research Center Moffett Field, CA Cartesian methods for CFD offer an accurate and robust approach for simulating aerodynamic ﬂows around geometrically complex bodies. A Solution-Adaptive Grid Generation Scheme for Atmospheric Flow Simulations N.

Ahmad D. Bacon Z. Boybeyi T. Dunn M. Hall P. Lee D. Mays R. Sarma M. Turner. Science Applications International Corporation Goodridge Drive, MS T McLean, Virginia. The Fundamentals of Grid Generation. [Show full abstract] the grid at a boundary, while the solution adaptive weights are used to make the grid spacing inversely proportional to the gradient.

Grid generation equations formulated as hyperbolic partial differential equations are solved numerically to generate body conforming meshes.

This grid generation procedure can be Interactive solution-adaptive grid generation procedure book used to generate smoothly varying grids in which the user has good control of the grid by: A philosophy for construction of solution adaptive grids Man Mohan Rai Rai, Man Mohan, "A philosophy for construction of solution adaptive grids " ().Retrospective Theses and Dissertations.

The advantage of using an algebraic grid generation procedure lies in the amount of control that the. A universal elliptic method for adaptive grid generation as applied to the numerical solution of theoretical and applied problems is described.

the solution. Techniques utilizing unstructured grid topologies and/or solution-adaptive grids can be used to speed the grid generation process and to automatically cluster mesh points in regions of interest. Im-portant global ﬂow features can be signiﬁcantly a•ected by.

The grid generation algorithm starts with a very coarse initial grid. In the inviscid region, isotropic cells of excellent quality are produced using a combination of point insertion and cell subdivision techniques. Simultaneously, a directional grid refinement strategy is used to construct highly stretched triangular cells in viscous : Seyed Saied Bahrainian, Zahra Mehrdoost.

The appeal of the solution-adaptive Cartesian Grid approach to CFD is the degree to which the grid-generation procedure can be automated. In most grid-generation approaches, the starting point is a discretized surface geometry, and the quality of the volume grid that is ultimately generated is highly dependent on the discretization of the.

The solution adaptive grid generated for the inviscid channel flow is shown in Fig. The adaptation procedure does a good job of clustering grid points in the regions near the initial and reflected shocks as well as the expansion.

Points on the lower and upper boundaries were held fixed during the grid generation by: “ A Solution-Adaptive Unstructured Grid Method by Grid Subdivision and Local Remeshing,” Journal of Aircraft, Vol. 37, No. 5,pp. – Pirzadeh, S., “Vortical Flow Prediction Using an Adaptive Unstructured Grid Method,” Symposium on Advanced Flow Management.

For example, orthogonality of grid lines and grid density in the regions of large solution gradients. A desired grid may be an orthogonal grid with high grid density in the areas of sharp solution gradients. Variational methods has been used for improving quality of a given grid [1].

In the variational methods, a grid functional is defined. Keywords: Grid Generation; Adaptation; Quadrilateral Mesh. 1 Introduction Accuracy of numerical solutions of partial diﬀerential equations on a grid is very much depend on the quality of the underlying grid.

There are various parameters for measuring grid quality. For example, orthogonality of grid lines and grid density in the regions of. Accuracy of a simulation is strongly depend on the grid quality. Here, quality means orthogonality at the boundaries and quasi-orthogonality within the critical regions, smoothness, bounded aspect ratios, solution adaptive behavior, etc.

We review various functionals for generating high quality. A grid generation method for an aft-fuselage mounted capped-nacelle/pylon configuration with an actuator disk. A solution adaptive grid procedure for an upwind parabolized flow solver.

ALBERT HARVEY, Multiple block grid generation in the interactive environment. JOHN STEINBRENNER, JOHN CHAWNER and. A review of adaptive grid generation is presented with an emphasis on the basic concepts and the interrelationship between the various methods.

The concepts are developed in a multifaceted progressive sense with enough detail so as to instill an operative spirit for the methods. The operational capabilities come from an explicit display of the Cited by: Close Drawer Menu Close Drawer Menu Menu.

Home; Journals. AIAA Journal; Journal of Aerospace Information Systems; Journal of Air Transportation; Journal of Aircraft; Journal of. Adaptivity with moving grids - Volume 18 - Chris J.

Budd, Weizhang Huang, Robert D. Russell M. (), The use of solution adaptive grids in solving partial differential equations, in Numerical Grid Generation (Thompson, J. H., ‘ Grid generation for fluid mechanics computation ’, Cited by: The Kitakyushu Smart Community Creation Project was selected by the Ministry of Economy, Trade and Industry of Japan in April as a project in one of four areas where the Next Generation Energy and Social System Demonstration Program, which aims at creating a Japanese-style Smart Grid and its overseas deployment, is to be implemented.

SIAM Journal on Numerical Analysis() h, r, and hr adaptivity with applications in numerical ocean modelling. Ocean ModellingCited by: "A Procedure for Efficient Generation of Solution Adapted Unstructured Grids," 4 th International Conference on Numerical Grid Generation in Computational Fluid Dynamics and Related Fields, Swansea, UK, April Full text of "Surface Modeling, Grid Generation, and Related Issues in Computational Fluid Dynamic (CFD) Solutions" See other formats.