Controlling chaos in the presence of noise
- Univ. of Virginia, Charlottesville (United States)
Although the presence of nonlinearity in real-world complex engineering systems is hardly a revelation, only recently has it been realized how ubiquitous and far-reaching its effects are. Important examples of oscillatory and chaotic behavior of complex, and even simple, nonlinear engineering systems abound. These are supplemented by an immense number of related scientific examples from pioneering laboratory experiments. Naturally, interest in engineering applications leads to the question of whether it is possible to control the nonlinear behavior of chaotic systems, and if so, whether it is difficult. Moreover, if controlling practical engineering systems is the objective, this question must be raised in the context of systems that operate in the presence of noise. Recently, some progress has been made on the control of simple nonlinear dynamical systems. And examples have been given of how a system that behaves chaotically when autonomous can be controlled by simple finite small-amplitude sinusoidal forcing so that it behaves periodically. Convective flows, both forced and natural, play important roles in numerous engineering applications. They also play crucial roles in many nuclear engineering applications: heat removal from pressurized water reactors and boiling water reactors (BWRs) by forced convection, decay heat removal from inherently safe liquid-metal-cooled reactors (LMRs) after emergency shutdown by natural convection in sodium pools and in some designs by the thermosyphons partially immersed in the pools.
- OSTI ID:
- 7168783
- Report Number(s):
- CONF-911107-; CODEN: TANSA; TRN: 92-030788
- Journal Information:
- Transactions of the American Nuclear Society; (United States), Vol. 63; Conference: 1991 Winter meeting of the American Nuclear Society (ANS) session on fundamentals of fusion reactor thermal hydraulics, San Francisco, CA (United States), 10-15 Nov 1991; ISSN 0003-018X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Neural network modeling of chaotic dynamics in nuclear reactor flows
Chaos, strange attractors, and fractal basin boundaries
Related Subjects
BWR TYPE REACTORS
REACTOR PHYSICS
LIQUID METAL COOLED REACTORS
PWR TYPE REACTORS
STOCHASTIC PROCESSES
BOUNDARY CONDITIONS
ENGINEERED SAFETY SYSTEMS
LA SALLE COUNTY-2 REACTOR
NONLINEAR PROBLEMS
OSCILLATIONS
REACTOR CORES
REACTOR NOISE
REACTOR PROTECTION SYSTEMS
REACTOR SHUTDOWN
REACTOR STABILITY
ENRICHED URANIUM REACTORS
PHYSICS
POWER REACTORS
REACTOR COMPONENTS
REACTORS
SHUTDOWN
STABILITY
THERMAL REACTORS
WATER COOLED REACTORS
WATER MODERATED REACTORS
220100* - Nuclear Reactor Technology- Theory & Calculation