Euleruv-Lagrangeuv model simulující dynamiku dopravy a její vliv na provozní větrání tunelu

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F05%3APU48054" target="_blank" >RIV/00216305:26210/05:PU48054 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Eulerian-Lagrangian model for traffic dynamics and its impact on operational ventilation of road tunnels

Popis výsledku v původním jazyce

The contribution deals with a computational Eulerian-Lagrangian model that simulates movement of cars inside a road tunnel and its impact on operational ventilation. The model simulates moving cars as a discrete objects that "fly" through the tunnel. Theobjects are treated with Lagrangian momentum equation and their velocity is solved along their trajectories that are determined by the shape of the roadway. The ambient air is solved with a commercial CFD code StarCD. Due to drag force, the cars virtuallly change their velocity, but this latter is continuously re-set to its original value. Momentum equation for continuous phase contains an additional source term that results from the net efflux of momentum of cars when they enter and leave a particularcontrol volume of the solution domain. The model [1] can simulate cars moving with different speed and traffic rate in individual traffic lanes. As a result we obtain flow rate generated by moving vehicles as a function of traffic speed an

Název v anglickém jazyce

Eulerian-Lagrangian model for traffic dynamics and its impact on operational ventilation of road tunnels

Popis výsledku anglicky

The contribution deals with a computational Eulerian-Lagrangian model that simulates movement of cars inside a road tunnel and its impact on operational ventilation. The model simulates moving cars as a discrete objects that "fly" through the tunnel. Theobjects are treated with Lagrangian momentum equation and their velocity is solved along their trajectories that are determined by the shape of the roadway. The ambient air is solved with a commercial CFD code StarCD. Due to drag force, the cars virtuallly change their velocity, but this latter is continuously re-set to its original value. Momentum equation for continuous phase contains an additional source term that results from the net efflux of momentum of cars when they enter and leave a particularcontrol volume of the solution domain. The model [1] can simulate cars moving with different speed and traffic rate in individual traffic lanes. As a result we obtain flow rate generated by moving vehicles as a function of traffic speed an

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BJ - Termodynamika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2005

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Wind Engineering & Industrial Aerodynamics

ISSN

0167-6105

e-ISSN

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Svazek periodika

2005

Číslo periodika v rámci svazku

93

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

17

Strana od-do

61-77

Kód UT WoS článku

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EID výsledku v databázi Scopus

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