Aufsatz in einer Fachzeitschrift
Numerical simulation of tunnel fires using preconditioned finite volume schemes



Details zur Publikation
Autor(inn)en:
Birken, P.
Publikationsjahr:
2008
Zeitschrift:
Zeitschrift für Angewandte Mathematik und Physik
Seitenbereich:
416-433
Jahrgang/Band:
59
Erste Seite:
416
Letzte Seite:
433
ISSN:
0044-2275

Zusammenfassung, Abstract
This article is concerned with the numerical simulation of flows at low Mach numbers which are subject to the gravitational force and strong heat sources. As a specific example for such flows, a fire event in a car tunnel will be considered in detail. The low Mach flow is treated with a preconditioning technique allowing the computation of unsteady flows, while the source terms for gravitation and heat are incorporated via an operator splitting. It is shown that a first order discretization in space is not able to compute the buoyancy forces properly on reasonable grids. The feasibility of the method is demonstrated on several test cases.


Autor(inn)en / Herausgeber(innen)

Zuletzt aktualisiert 2019-01-11 um 16:03