scholarly journals Numerical Study of Alternate Bars in Alluvial Channels With Nonuniform Sediment

2019 ◽  
Vol 55 (4) ◽  
pp. 2976-3003 ◽  
Author(s):  
F. Cordier ◽  
P. Tassi ◽  
N. Claude ◽  
A. Crosato ◽  
S. Rodrigues ◽  
...  
Keyword(s):  
Numerical Study ◽  
Alluvial Channels ◽  
Nonuniform Sediment ◽  
Alternate Bars

scholarly journals Experimental and numerical findings on the long-term evolution of migrating alternate bars in alluvial channels

2012 ◽  
Vol 48 (6) ◽  
Author(s):  
Alessandra Crosato ◽  
Frehiwot Beidmariam Desta ◽  
John Cornelisse ◽  
Filip Schuurman ◽  
Wim S. J. Uijttewaal
Keyword(s):  
Long Term Evolution ◽  
Alluvial Channels ◽  
Term Evolution ◽  
Alternate Bars

scholarly journals NUMERICAL STUDY ON THE FORMATION OF LOW-WATER COURSE IN A STRAIGHT CHANNEL WITH ALTERNATE BARS

2004 ◽  
Vol 48 ◽  
pp. 1027-1032 ◽  
Author(s):  
Yoshihiko SHIMIZU ◽  
Kengo OSADA ◽  
Tomoko TAKANASHI
Keyword(s):  
Numerical Study ◽  
Straight Channel ◽  
Alternate Bars

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

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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