Modeling/simulation electrical analog models

Electric analog models are a class of lumped models and are often used to simulate flow through Ae network of blood vessels. These models are useful in assessmg Ae overall performance of a system or a subsystem. Integration of Ae fluid momentum equation (longitudinal direction, in cy-... 

FIGURE 1.8 Electrical analog model to simulate atrial and ventricular pumping. Variable capacitances simulate the muscle contractions, and the filling and emptying through the ventricle can be simulated by a series of inductance and... 

The experimental data for a were compared with theoretical values calculated by means of analogy considerations to electric flow (Ohm s law) [112]. Simple circuit models based on a network of resistors were applied to simulate the cross-type configuration chosen. It could be shown that the calculated values for amin and am3X were in excellent agreement with the experimental data. 

In an early work by Kottke and Niiler (1988), a cellular model was used to simulate the combustion wave initiation and propagation for the TH-C model system. The interactions between neighboring cells were described by the electrical circuit analogy to heat conduction. At the reaction initiation temperature (i.e., melting point of titanium), the cell is instantly converted to the product, TiC, at the adiabatic combustion temperature. The cell size was chosen to be twice as large as the Ti particles (44 /xm). Experimentally determined values for the green mixture thermal conductivity as a function of density were used in the simulations. As a result, the effects of thermal conductivity of the reactant mixture on combustion wave velocity were determined (see Fig. 21). Advani et al. (1991) used the same model, and also computed the effects of adding TiC as a diluent on the combustion velocity. 

Simulation of a kinetic model using analog electric circuits... 

A physical model in different physical system to the real one, for example, colored water in tubes has been used to simulate the flow of coal in a mine. More common in the use of electrical circuits-analog computers are based on this idea [18],... 

A first set of simulations was executed to determine the variation of the electric potential with the distance perpendicular to the tip of a stimulating electrode in a single-electrode setup. A three-dimensional simulation model, as shown in Fig. 16, was developed from the diagram of the experimental configuration. Simulation results were later contrasted with experimental measurements from the single-electrode analog setup to verify the model and determine if the presence of the measurement electrode affected the electric potential at the probe points. 

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