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On the deterministic and chaotic flow in a thermal convection loop

Technical Report:

Abstract

The fractal dimension and Lyapunov exponent are measured for the chaotic flow in a thermal convection loop. With a one dimensional map of the flow, it is demonstrated that the dynamics of the thermosyphon is similar to that of an NH{sub 3} ring laser. Various characteristics of the thermosyphon are measured, such as temperature and frequencies of the flow versus heating. Attempts to stabilize the no-motion state with a feedback controller is described, and the effect of time delay in the controller is analyzed. 32 refs, 69 figs
Authors:
Publication Date:
Sep 01, 1993
Product Type:
Technical Report
Report Number:
TRITA-MEK-TR-93-10
Reference Number:
SCA: 420400; PA: SWD-93:007426; EDB-94:020523; NTS-94:008815; ERA-19:007180; SN: 94001129806
Resource Relation:
Other Information: PBD: Sep 1993
Subject:
42 ENGINEERING; THERMOSYPHONS; FLUID FLOW; LYAPUNOV METHOD; TEMPERATURE DEPENDENCE; FEEDBACK; NONLINEAR PROBLEMS; 420400; HEAT TRANSFER AND FLUID FLOW
OSTI ID:
10117257
Research Organizations:
Royal Inst. of Tech., Stockholm (Sweden). Dept. of Mechanics
Country of Origin:
Sweden
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0348-467X; Other: ON: DE94730445; TRN: SE9307426
Availability:
OSTI; NTIS
Submitting Site:
SWD
Size:
75 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Fiedler, G. On the deterministic and chaotic flow in a thermal convection loop. Sweden: N. p., 1993. Web.
Fiedler, G. On the deterministic and chaotic flow in a thermal convection loop. Sweden.
Fiedler, G. 1993. "On the deterministic and chaotic flow in a thermal convection loop." Sweden.
@misc{etde_10117257,
title = {On the deterministic and chaotic flow in a thermal convection loop}
author = {Fiedler, G}
abstractNote = {The fractal dimension and Lyapunov exponent are measured for the chaotic flow in a thermal convection loop. With a one dimensional map of the flow, it is demonstrated that the dynamics of the thermosyphon is similar to that of an NH{sub 3} ring laser. Various characteristics of the thermosyphon are measured, such as temperature and frequencies of the flow versus heating. Attempts to stabilize the no-motion state with a feedback controller is described, and the effect of time delay in the controller is analyzed. 32 refs, 69 figs}
place = {Sweden}
year = {1993}
month = {Sep}
}