Numerical Study of the Mutual Influence of Nearby Buried Structures Under Seismic Influences

2020 ◽  
pp. 37-46
Author(s):  
Valentin G. Bazhenov ◽  
Nadezhda S. Dyukina
Keyword(s):  
Mutual Influence ◽  
Numerical Study ◽  
Buried Structures

scholarly journals Effect of structural interaction on the aerodynamic properties

2020 ◽  
Vol 17 (3) ◽  
pp. 79-86
Author(s):  
R. N. Guzeev ◽  
◽  
E. S. Goloviznina ◽  
Keyword(s):  
Cross Sections ◽  
Mutual Influence ◽  
Numerical Study ◽  
Vortex Method ◽  
Discrete Vortex ◽  
Discrete Vortex Method ◽  
Structural Interaction ◽  
Cable Stayed Bridge ◽  
Aspect Ratios ◽  
Aerodynamic Properties

Effect of structural interaction on drag coefficient is considered. Numerical study is performed using discrete vortex method. There have been obtained dependences of the mutual influence of rectangular cross sections with different aspect ratios depending on the reduced distance between the cross sections, on their aerodynamics. The effect of structural interaction of cable-stayed bridge pylon legs is investigated on the examples of Golden Bridge and Russian Bridge in Vladivostok.

scholarly journals Numerical study of the acoustic efficiency of a group of Helmholtz resonators of various configurations

2018 ◽  
Vol 243 ◽  
pp. 00018 ◽  
Author(s):  
Pavel Pisarev ◽  
Aleksandr Anoshkin
Keyword(s):  
Mutual Influence ◽  
Numerical Study ◽  
Single Layer ◽  
Acoustic Properties ◽  
Mutual Arrangement ◽  
Resonant Frequencies ◽  
Helmholtz Resonators ◽  
Layer Composite ◽  
Model Channel ◽  
Physical And Mathematical Models

In this work the physical and mathematical models of predicting the effective acoustic properties of sound absorbing structures (Helmholtz resonators) in joint operation were formulated. Numerical simulation has been performed on the modeling of an acoustic wave in a model channel with resonators of various configurations. Research was carried out to optimize the mutual arrangement of Helmholtz cells (resonators) in sound-absorbing structures of resonant type. According to the results of the research, the mutual influence of closely located prismatic resonators in the model channel of rectangular shape was revealed. The most effective combinations of prismatic resonators were determined. Schemes and recommendations for the placement of composite and base resonators in sound-absorbing structures were developed. Unique single-layer composite sound-absorbing structures, working at several resonant frequencies, were developed.

Numerical study of the low-frequency atomic dynamics in a Lennard-Jones glass

1998 ◽  
Vol 77 (2) ◽  
pp. 473-484 ◽  
Author(s):  
M. Sampoli, P. Benassi, R. Dell'Anna,
Keyword(s):  
Numerical Study ◽  
Low Frequency ◽  
Lennard Jones

The codevelopment of group relationships: The role of individual group member’s and other group members’ mutual influence and shared group environment.

2019 ◽  
Vol 66 (5) ◽  
pp. 640-649 ◽  
Author(s):  
Gianluca Lo Coco ◽  
Salvatore Gullo ◽  
Gabriele Profita ◽  
Chiara Pazzagli ◽  
Claudia Mazzeschi ◽  
...  
Keyword(s):  
Mutual Influence ◽  
Individual Group ◽  
Group Environment ◽  
Group Members ◽  
Group Relationships

Experimental and numerical study of the response of steel sheet Hopkinson specimens

2006 ◽  
Vol 134 ◽  
pp. 541-546 ◽  
Author(s):  
P. Verleysen ◽  
J. Degrieck
Keyword(s):  
Steel Sheet ◽  
Numerical Study

Numerical simulation of the tree higro-thermal response in forest fire environment

2020 ◽  
pp. 57-65
Author(s):  
Eusébio Conceiçã ◽  
João Gomes ◽  
Maria Manuela Lúcio ◽  
Jorge Raposo ◽  
Domingos Xavier Viegas ◽  
...  
Keyword(s):  
Forest Fire ◽  
Numerical Study ◽  
Thermal Response ◽  
View Factor ◽  
Tree Model ◽  
Pine Tree ◽  
Surface Temperatures ◽  
Fire Environment ◽  
Fire Front ◽  
Heat Exchanges

This paper refers to a numerical study of the hypo-thermal behaviour of a pine tree in a forest fire environment. The pine tree thermal response numerical model is based on energy balance integral equations for the tree elements and mass balance integral equation for the water in the tree. The simulation performed considers the heat conduction through the tree elements, heat exchanges by convection between the external tree surfaces and the environment, heat exchanges by radiation between the flame and the external tree surfaces and water heat loss by evaporation from the tree to the environment. The virtual three-dimensional tree model has a height of 7.5 m and is constituted by 8863 cylindrical elements representative of its trunks, branches and leaves. The fire front has 10 m long and a 2 m high. The study was conducted taking into account that the pine tree is located 5, 10 or 15 m from the fire front. For these three analyzed distances, the numerical results obtained regarding to the distribution of the view factors, mean radiant temperature and surface temperatures of the pine tree are presented. As main conclusion, it can be stated that the values of the view factor, MRT and surface temperatures of the pine tree decrease with increasing distance from the pine tree in front of fire.

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