CLC number: O551
On-line Access: 2017-12-05
Received: 2016-10-03
Revision Accepted: 2017-05-06
Crosschecked: 2017-11-07
Cited: 0
Clicked: 4445
Shalom Sadik. A model of two cylindrical plane wall layers exposed to oscillating temperatures with different amplitudes and frequencies[J]. Journal of Zhejiang University Science A, 2017, 18(12): 974-983.
@article{title="A model of two cylindrical plane wall layers exposed to oscillating temperatures with different amplitudes and frequencies",
author="Shalom Sadik",
journal="Journal of Zhejiang University Science A",
volume="18",
number="12",
pages="974-983",
year="2017",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1600641"
}
%0 Journal Article
%T A model of two cylindrical plane wall layers exposed to oscillating temperatures with different amplitudes and frequencies
%A Shalom Sadik
%J Journal of Zhejiang University SCIENCE A
%V 18
%N 12
%P 974-983
%@ 1673-565X
%D 2017
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1600641
TY - JOUR
T1 - A model of two cylindrical plane wall layers exposed to oscillating temperatures with different amplitudes and frequencies
A1 - Shalom Sadik
J0 - Journal of Zhejiang University Science A
VL - 18
IS - 12
SP - 974
EP - 983
%@ 1673-565X
Y1 - 2017
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1600641
Abstract: A linear model of two cylindrical plane wall layers exposed to oscillating temperatures and frequencies was built using a physical superposition of two states. In the first state, the inner surface of a wall was exposed to oscillating temperature and the outer surface was exposed to a zero relative temperature. In the second state, the inner surface was exposed to a zero relative temperature while the outer surface was exposed to an oscillating temperature with different amplitude and frequency. Temperature distributions were derived for different amplitudes, frequencies, and thermal conductivities. Results show that increasing the frequency decreased the depth of temperature penetration. A high frequency led to extremum temperature values on the surface, while a low frequency allowed gradual temperature changes during the time period. Temperature distribution lines showing simultaneous heat flux entry and exit were not observed.
This paper 'A Two Cylindrical Plane Wall Layers Exposed to Oscillating Temperatures with Different Amplitudes and Frequencies' by Shalom Sadik is interesting and clearly presented with different cases in terms of amplitudes, frequencies and thermal conductivities for the temperature distributions. Findings, such as, increasing the frequency value decreases the temperature penetration length, high frequency leads to extremum temperature values on the surface while low frequency values allows gradually temperature changes during the time period, were obatined which will be of many practical applications in studying combustion engine.
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