scholarly journals Transformed governing equations for triangular grid structure used in thermal-hydraulic subchannel analysis

1976 ◽  
Author(s):  
W.T. Sha ◽  
A.A. Szewczyk ◽  
E.I.H. Lin
Keyword(s):  
Triangular Grid ◽  
Grid Structure ◽  
Governing Equations ◽  
Subchannel Analysis

scholarly journals Managing Data Using Neighbor Replication on Triangular-Grid Structure

2006 ◽  
pp. 1071-1077 ◽  
Author(s):  
Ali Mamat ◽  
M. Mat Deris ◽  
J. H. Abawajy ◽  
Suhaila Ismail
Keyword(s):  
Triangular Grid ◽  
Grid Structure

scholarly journals Study on Structural Characteristics of Composite Smart Grille Based on Principal Component Analysis

2022 ◽  
Vol 2022 ◽  
pp. 1-11
Author(s):  
Kong Fanxiao ◽  
Yao Huazhong ◽  
Xie Weidong
Keyword(s):  
Principal Component Analysis ◽  
Structural Damage ◽  
Nearest Neighbor ◽  
Structural Characteristics ◽  
Principal Component ◽  
Composite Plates ◽  
Component Analysis ◽  
Triangular Grid ◽  
Grid Structure ◽  
Good Ability

In recent years, many scholars have conducted in-depth and extensive research on the mechanical properties, preparation methods, and structural optimization of grid structural materials. In this paper, the structural characteristics of composite intelligent grid are studied by combining theoretical analysis with experiments. According to the existing conditions in the laboratory, the equilateral triangular grid structure experimental pieces were prepared. In this paper, principal component analysis combined with nearest neighbor method was used to detect the damage of composite plates. On this basis, the multiobjective robustness optimization of the structure is carried out based on artificial intelligence algorithm, which makes the structure quality and its sensitivity to uncertain parameters lower. Particle swarm optimization (PSO) is used in neural network training. The damage characteristics of different grid structures, different impact positions, and different impact energies were studied. The results show that the structural damage types, areas, and propagation characteristics are very different when the structure is impacted at different positions, which verifies that the grid structure has a good ability to limit the damage diffusion and shows that the grid structure has a good ability to resist damage.

Coupled dam-break flow and bed load modelling using HLLC-WAF scheme

2015 ◽  
Vol 72 (7) ◽  
pp. 1155-1167 ◽  
Author(s):  
Alireza Hosseinzadeh-Tabrizi ◽  
Mahnaz Ghaeini-Hessaroeyeh
Keyword(s):  
Experimental Data ◽  
Weighted Average ◽  
Dam Break ◽  
Triangular Grid ◽  
Governing Equations ◽  
Mobile Bed ◽  
Dam Break Flow ◽  
Average Flux ◽  
Comparison Of The Results ◽  
Volume Method

A two-dimensional numerical model predicting flow over a mobile bed has been developed. Governing equations consist of the shallow water equations and the Exner equation. The finite volume method on an unstructured triangular grid was deployed to discretize the governing equations. The local Riemann problem is solved by the Harten, Lax and van Leer–contact (HLLC) method in the interface of the cells and the equations are solved using a fully coupled method. Then the flux modelling has been deployed by the total variation diminishing (TVD) version of the weighted average flux (WAF) scheme. The model was verified by comparison of the results and available experimental data for dam-break flow, in a laboratory test, via a channel with sudden enlargement and erodible bed conditions. Comparison of these two sets of results shows that increasing the accuracy of flux modelling caused the model results to have a reasonable agreement with the experimental data.

Managing data using neighbour replication on a triangular-grid structure

2009 ◽  
Vol 6 (1) ◽  
pp. 56 ◽  
Author(s):  
Mustafa Mat Deris ◽  
Jemal H. Abawajy ◽  
David Taniar ◽  
Ali Mamat
Keyword(s):  
Triangular Grid ◽  
Grid Structure

Independent Grid Structure-Based Routing Protocol in Wireless Sensor Networks

2013 ◽  
Vol E96.B (1) ◽  
pp. 309-312 ◽  
Author(s):  
Euisin LEE ◽  
Soochang PARK ◽  
Hosung PARK ◽  
Sang-Ha KIM
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Routing Protocol ◽  
Wireless Sensor ◽  
Grid Structure
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