Download Fire Dynamics Simulator (Version 5) Technical Reference by McGrattan, Kevin; Hostikka, Simo; Floyd, Jason; Baum, PDF

By McGrattan, Kevin; Hostikka, Simo; Floyd, Jason; Baum, Howard; Rehm, Ronald; Mell, William; McDermott, Randall

This 2010 rfile presents the theoretical foundation for the fireplace Dynamics Simulator (FDS), together with the governing equations and the numerical equipment used to unravel them. The equations are the low Mach quantity type of the Navier-Stokes equations, solved utilizing huge eddy simulation innovations. The advisor additionally describes thermal radiation, droplet delivery and evaporation, fire-specific detection units, and different details with regards to the numerics of the version.

Show description

Read or Download Fire Dynamics Simulator (Version 5) Technical Reference Guide, Volume 1 - Mathematical Model PDF

Similar dynamics books

IUTAM Symposium on Nonlinear Stochastic Dynamics and Control: Proceedings of the IUTAM Symposium held in Hangzhou, China, May 10-14, 2010

Non-linear stochastic platforms are on the middle of many engineering disciplines and growth in theoretical learn had ended in a greater figuring out of non-linear phenomena. This publication offers details on new primary effects and their purposes that are starting to look around the whole spectrum of mechanics.

Newton-Euler dynamics

In contrast to different books in this topic, which are inclined to pay attention to 2-D dynamics, this article specializes in the appliance of Newton-Euler how to advanced, real-life three-D dynamics difficulties. it really is hence excellent for optional classes in intermediate dynamics.

Dynamics and Randomness II

This ebook comprises the lectures given on the moment convention on Dynamics and Randomness held on the Centro de Modelamiento Matem? tico of the Universidad de Chile, from December 9-13, 2003. This assembly introduced jointly mathematicians, theoretical physicists, theoretical machine scientists, and graduate scholars drawn to fields regarding chance concept, ergodic conception, symbolic and topological dynamics.

Nonequilibrium Carrier Dynamics in Semiconductors: Proceedings of the 14th International Conference, July 25–29, 2005, Chicago, USA

Foreign specialists assemble each years at this validated convention to debate contemporary advancements in thought and test in non-equilibrium shipping phenomena. those advancements were the driver in the back of the mind-blowing advances in semiconductor physics and units over the past few many years.

Extra info for Fire Dynamics Simulator (Version 5) Technical Reference Guide, Volume 1 - Mathematical Model

Sample text

Heat conduction is assumed only in the direction normal to the surface. This section describes the single mass and energy conservation equation for solid materials, plus the various coefficients, source terms, and boundary conditions. 2 describes the component-averaged material properties, ks and ρs cs . 3 describes the term q˙s,c , which is essentially the heat production (loss) rate given by the pyrolysis models for different types of solid and liquid fuels. 4 describes the term q˙s,r , the radiative absorption and emission in depth.

2. If a reaction occurs, Z1 is converted to Z2 representing the conversion of fuel to products. The heat release rate of the fire is obtained by multiplying the fuel consumption rate by the heat of combustion. We expand upon this by allowing for the fuel stream to be diluted with an inert gas (nitrogen) and we note that since we are using our extra parameter to determine extinction, that the yields of CO and soot are still fixed. Thus we can restate Eq. 39) and Eq. 42) where YFI is the fuel mass fraction at the burner surface (YNI2 would be the diluent mass fraction at the burner surface).

The temperature integrals of the latent heat contents are computed in advance for all the reactions of each material and the values of q˙s,c are tabulated between T0 and T0 + 2000 K. During the pyrolysis calculation, the values are found from a “look-up” table. 35 Liquid Fuels The rate at which liquid fuel evaporates when burning is a function of the liquid temperature and the concentration of fuel vapor above the pool surface. 94) where hv is the heat of vaporization, W f is the molecular weight, Ts is the surface temperature, and Tb is the boiling temperature of the fuel [36].

Download PDF sample

Rated 4.48 of 5 – based on 14 votes