搜索结果: 16-30 共查到“工学 Mesh”相关记录144条 . 查询时间(0.103 秒)
提出了一种无线mesh网中最小网络编码代价低时延多播路由协议(MNCLDMR, minimal network coding and low delay multicast routing)。MNCLDMR的目标是选择合适的网络编码节点，最小化网络编码代价，降低网络时延。MNCLDMR主要思想是引入拓扑关键节点和网络编码关键节点的概念，以下一跳的节点是否是网络编码关键节点或拓扑关键节点作为路由判据...
Describing and Computing Model of the Topological Relation in Spherical Surface Quaternary Triangular Mesh
Spherical surface QTM Euler_number Topological relation
2015/12/3
Spherical surface QTM (Quaternary Triangular Mesh) is one of an efficient tool to deal with the global data because of its advantages of multi-resolution and hierarchy. Based on characters of spherica...
The Basic Topology Issues on Spherical Surface Quaternary Triangular Mesh
SGDM Manifold SQTM Spherical Surface Digital Topology Spherical Surface Topology Paradox
2015/10/9
SGDM (Sphere Grid Data Model) is an efficient method to deal with the global data because of the advantages of multi-resolution
and hierarchy. However, SGDM has no distinct descriptions and lack of ...
ON THE WAY TO WATER-TIGHT MESH
Modelling Laser scanning Cultural Heritage Robotics Automation
2015/10/8
This paper presents a new approach to generate water-tight surface mesh. In comparison with the two famous water-tight mesh
generation algorithms: Tight Cocone (Dey and Goswami, 2003) and Power Crus...
3D OCTREE BASED WATERTIGHT MESH GENERATION FROM UBIQUITOUS DATA
Surface reconstruction Octree Graph-cut Lidar
2015/9/21
Despite of the popularity of Delauney structure for mesh generation, octree based approaches remain an interesting solution for a first step surface reconstruction. In this paper, we propose a generic...
3D BUILDING FACADE RECONSTRUCTION UNDER MESH FORM FROM MULTIPLE WIDE ANGLE VIEWS
Surface Reconstruction Digital Facade Models Global Optimization Multi-Image Matching
2015/8/7
The
central idea is to create a 3D point cloud. After comparison between object-space and image-space techniques, we choose the latter and
compute the depths of the pixels in each image using a corr...
Combined Feature-Driven Richardson-Based Adaptive Mesh Refinement for Unsteady Vortical Flows
Combined Feature-Driven Richardson-Based Adaptive Mesh Unsteady Vortical Flows
2015/7/3
An adaptive mesh refinement strategy that couples feature detection with local error estimation is presented. The strategyfirst selects vortical regions for refinement using feature ...
A CONSERVATIVE MESH-FREE SCHEME AND GENERALIZED FRAMEWORK FOR CONSERVATION LAWS
conservation law advection equation mesh-free scheme fi nite diff erence fi nite volume
2015/7/3
We present a novel mesh-free scheme for solving partial differential equations. We first derive a conservative and stable formulation of mesh-free first derivatives. We then show tha...
Further Studies of Mesh Refinement: Are Shock-Free Airfoils Truly Shock Free?
Mesh Refi nement Are Shock-Free Airfoils Truly Shock Free
2015/7/3
The Garabedian-Korn airfoil is studied at its inviscid design condition and in the neighborhood thereof. This airfoil was designed with a hodograph method to be shock-free at M = 0.750 and Cl = 0.629....
Continuous Adjoint Approach for Adaptive Mesh Refinement
Continuous Adjoint Approach Adaptive Mesh Refi nement
2015/7/3
At present, all output-based mesh adaptation methods in the existing literature have adopted the discrete adjoint approach which, depending on the structure of the code,could be very complex to implem...
3D Flapping Wing Simulation with High Order Spectral Difference Method on Deformable Mesh
3D Flapping Simulation Spectral Diff erence Method Deformable Mesh
2015/7/3
In this paper we carry out computational studies of three-dimensional flow over flapping wings. The problems we have investigated include, firstly, three-dimensonal simulation of ...
Automated Off-Body Cartesian Mesh Adaption for Rotorcraft Simulations
Automated Off -Body Cartesian Mesh Adaption Rotorcraft Simulations
2015/7/3
A new adaptive mesh refinement strategy is presented that couples feature-detection with local error-estimation. The goal is to guide refinement to key vortical features using feature dete...
Dynamic Mesh Deformation for Adaptive Grid Refinement with Staggered Spectral Difference and Finite Volume Mesh
Dynamic Mesh Deformation Adaptive Grid Staggered Spectral Diff Finite Volume Mesh
2015/7/3
Better computational efficiency and reduced computational cost for high order CFD method are areas of active research. In this study, we investigate the potential of using dynamic deforming mesh ...
FLOW INDUCED CYLINDER OSCILLATION AND ITS CONTROL WITH HIGH ORDER SPECTRAL DIFFERENCE METHOD ON DEFORMABLE MESH
SPECTRAL DIFFERENCE METHOD DEFORMABLE MESH
2015/7/3
In the recent work by the authors, high order spectral difference (SD) method has been formulated in a framework with dynamic deformable meshes, and been demonstrated to preserve the design accuracy o...
Feature-Driven Cartesian Adaptive Mesh Refinement in the Helios Code
Feature-Driven Cartesian Adaptive Mesh Refinement Helios Code
2015/7/3
Feature-detection methods are applied to drive Cartesian-based adaptive mesh re nement for improved vortex resolution in aerodynamics ow elds. Several approaches such as the Q-criterion, the eigenvalu...