Abstract
We experimentally study the dynamical states of a freely moving, floating heat blanket that is coupled with a thermally convecting fluid. This floating boundary modifies the large-scale flow pattern in the bulk and destabilizes the coupled system, leading to spontaneous oscillations. As the moving boundary exceeds a critical size, the system makes a transition from an oscillatory state to a weakly confined state, in which the moving boundary executes only small excursions in response to random bypassing thermal plumes. To explain the observed states and transition, we provide a low-dimensional model that appears to capture the underlying mechanism of this coupled system.
| Original language | English (US) |
|---|---|
| Article number | 055301 |
| Journal | Physical Review E |
| Volume | 75 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 9 2007 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics
- Statistical and Nonlinear Physics
- Mathematical Physics
Cite this
Dynamical states of a mobile heat blanket on a thermally convecting fluid. / Zhong, Jin Qiang; Zhang, Jun.
In: Physical Review E, Vol. 75, No. 5, 055301, 09.05.2007.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Dynamical states of a mobile heat blanket on a thermally convecting fluid
AU - Zhong, Jin Qiang
AU - Zhang, Jun
PY - 2007/5/9
Y1 - 2007/5/9
N2 - We experimentally study the dynamical states of a freely moving, floating heat blanket that is coupled with a thermally convecting fluid. This floating boundary modifies the large-scale flow pattern in the bulk and destabilizes the coupled system, leading to spontaneous oscillations. As the moving boundary exceeds a critical size, the system makes a transition from an oscillatory state to a weakly confined state, in which the moving boundary executes only small excursions in response to random bypassing thermal plumes. To explain the observed states and transition, we provide a low-dimensional model that appears to capture the underlying mechanism of this coupled system.
AB - We experimentally study the dynamical states of a freely moving, floating heat blanket that is coupled with a thermally convecting fluid. This floating boundary modifies the large-scale flow pattern in the bulk and destabilizes the coupled system, leading to spontaneous oscillations. As the moving boundary exceeds a critical size, the system makes a transition from an oscillatory state to a weakly confined state, in which the moving boundary executes only small excursions in response to random bypassing thermal plumes. To explain the observed states and transition, we provide a low-dimensional model that appears to capture the underlying mechanism of this coupled system.
UR - http://www.scopus.com/inward/record.url?scp=34347330052&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34347330052&partnerID=8YFLogxK
U2 - 10.1103/PhysRevE.75.055301
DO - 10.1103/PhysRevE.75.055301
M3 - Article
VL - 75
JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
SN - 1539-3755
IS - 5
M1 - 055301
ER -