Closed System
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Closed System
1. In thermodynamics, a system so chosen that no transfer of mass takes
place across its boundaries; for example, a fluid parcel undergoing a
saturation-adiabatic process, as opposed to a pseudoadiabatic expansion. See
open
system.
2. In mathematics, a system of differential equations and supplementary
conditions such that the values of all the unknowns (dependent variables) of
the system are mathematically determined for all values of the independent
variables (usually space and time) to which the system applies.
3. = closed
ecological system.
4. A system which constitutes a feedback loop
so that the inputs and controls depend on the resulting output. For example,
an automatic radar-controlled tracking system.
References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use
