steady-state model


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Related to steady-state model: Steady state cosmology

steady-state model

[′sted·ē ¦stāt ′mäd·əl]
(petroleum engineering)
Electric or electrolytic analogs of a reservoir formation used to study the steady-state flow of fluids through porous media; includes gel, blotter, liquid, potentiometric, and similar models.
References in periodicals archive ?
The steady-state models are simple to implement, yet are generally only applicable to the hourly-averaged data, such as solar irradiance, wind velocity and ambient temperature or cases when these parameters do not change over a long time interval.
This facilitated visual validation of both the proportion of grade 1 greenlip in the catch and the landed revenue derived from the fishery logbooks with those generated from the steady-state model.
The response when using these initial conditions with the steady-state model (given in Section 3) and transient model (Section 4) are compared in Figure 9 and Figure 10.
Ignoring depreciation, therefore, we see that the capital-labor ratio that maximizes capitalist income is the same as between the current-period model and the long-term steady-state model. Since (as we saw above) the steady-state [k.sup.**] is larger than the current-period [k.sup.**], while at the same time the steady-state [k.sup.*] is the same as the current-period [k.sup.*], this suggests that it is more likely that [k.sup.*] will be less than [k.sup.**] (growth retardation will hold) in a long-term steady-state situation than in a current-period situation.
The objective is to critically analyze the potential of this approach for system understanding and management and to adapt existing steady-state models of the Peruvian system for use in (future) dynamic simulations.
From the field-scale intermittent water application experiment of this study and the analysis of the data, it can be said that a steady-state model that is based on cumulative drainage instead of time for simulating transient non-reactive solute transport seems to be justified.
All groundwater intakes were deactivated in the calibrated steady-state model and a corresponding distribution of the heads h((x, y, z) was simulated.
Model simulations in which environmental conditions are held constant (steady-state model) indicate a [TABULAR DATA FOR TABLE 1 OMITTED] marked effect of body size on equilibrium body temperature, and suggest that during the day, evaporative water loss, convective cooling from wind, and shortwave solar inputs represent the dominant sources and sinks of heat to the mussel's thermal budget (in terms of percentage total heat flux).
What differentiates the dynamic model from the steady-state model is the use of holdups.
Confining the field in this way allows an evolving universe - a significant departure from the old steady-state model, notes Peebles.
Loop modeling includes the steady-state model and the AC small signal model.