We experimentally investigated the development and vertical movement of isothermal lines in cooling columns of confined water. The isothermal line develops spontaneously whenever the bottom of the column cools to before the top. The width of these lines was typically less than 1 cm, with up to a thermal gradient across these lines. The velocity was inversely proportional to the diameter of the column. The velocity was when the column diameter was 2.2 cm, and decreases to when the diameter was increased to 12.5 cm. Data presented here also raise serious questions about the claim of new phase transitions in water made by Esposito et al. (2008, “Mpemba Effect and Phase Transitions in the Adiabatic Cooling of Water Before Freezing,” Physica A, 387, pp. 757–763).
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Vertical Movement of Isothermal Lines in Water
William R. Gorman,
William R. Gorman
Department of Physics, Applied Physics, and Astronomy,
State University of New York at Binghamton
, Binghamton, NY 13902-6000
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Gregory J. Parks,
Gregory J. Parks
Department of Physics, Applied Physics, and Astronomy,
State University of New York at Binghamton
, Binghamton, NY 13902-6000
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James D. Brownridge
James D. Brownridge
Department of Physics, Applied Physics, and Astronomy,
e-mail: jdbjdb@binghamton.edu
State University of New York at Binghamton
, Binghamton, NY 13902-6000
Search for other works by this author on:
William R. Gorman
Department of Physics, Applied Physics, and Astronomy,
State University of New York at Binghamton
, Binghamton, NY 13902-6000
Gregory J. Parks
Department of Physics, Applied Physics, and Astronomy,
State University of New York at Binghamton
, Binghamton, NY 13902-6000
James D. Brownridge
Department of Physics, Applied Physics, and Astronomy,
State University of New York at Binghamton
, Binghamton, NY 13902-6000e-mail: jdbjdb@binghamton.edu
J. Heat Transfer. Jun 2009, 131(6): 064501 (3 pages)
Published Online: April 2, 2009
Article history
Received:
January 10, 2008
Revised:
December 3, 2008
Published:
April 2, 2009
Citation
Gorman, W. R., Parks, G. J., and Brownridge, J. D. (April 2, 2009). "Vertical Movement of Isothermal Lines in Water." ASME. J. Heat Transfer. June 2009; 131(6): 064501. https://doi.org/10.1115/1.3084120
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