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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.

不同振幅和频率的振荡温度作用下的双层圆柱壳模型

[1]Akbarzadeh, A.H., Chen, Z.T., 2012. Transient heat conduction in a functionally graded cylindrical panel based on the dual phase lag theory. International Journal of Thermophysics, 33:1100-1125.

[2]Barletta, A., Zanchini, E., 1995. The temperature field in a cylindrical electric conductor with annular section. International Journal of Heat and Mass Transfer, 38(15):2821-2832.

[3]Barletta, A., Zanchini, E., 1996. Hyperbolic heat conduction and thermal resonances in a cylindrical solid carrying a steady-periodic electric field. International Journal of Heat and Mass Transfer, 39(6):1307-1315.

[4]Bas, H., Keles, I., 2015. Novel approach to transient thermal stress in an annular fin. Journal of Thermophysics and Heat Transfer, 29(4):705-710.

[5]Chatterjee, D., Mondal, B., Halder, P., 2013. Unsteady forced convection heat transfer over a semicircular cylinder at low Reynolds numbers. Numerical Heat Transfer, Part A: Applications, 63:411-429.

[6]Chiu, C., Chen, C., 2002. Thermal stresses in annular fins with temperature-dependent conductivity under periodic boundary condition. Journal of Thermal Stresses, 25(5):475-492.

[7]Daneshjou, K., Bakhtiari, M., Alibakhshi, R., et al., 2015. Transient thermal analysis in 2D orthotropic FG hollow cylinder with heat source. International Journal of Heat and Mass Transfer, 89:977-984.

[8]Fazeli, H., Abdus, M.A., Karabi, H., et al., 2013. Analysis of transient heat conduction in a hollow cylinder using Duhamed theorem. International Journal of Thermophysics, 34(2):350-365.

[9]Jang, J., Chiu, T., 2007. Numerical and experimental thermal analysis for a metallic hollow cylinder subjected to step-wise electro-magnetic induction heating. Applied Thermal Engineering, 27(11-12):1883-1894.

[10]Keles, I., Conker, C., 2011. Transient hyperbolic heat conduction in thick-walled FGM cylinders and spheres with exponentially-varying properties. European Journal of Mechanics A/Solids, 30(3):449-455.

[11]Lu, X., Tervola, P., Viljanen, M., 2006. Transient analytical solution to heat conduction in composite circular cylinder. International Journal of Heat and Mass Transfer, 49(1-2):341-348.

[12]Malekzadeh, P., Haghighi, M.R., Golbahar, H.Y., 2012. Heat transfer analysis of functionally graded hollow cylinders subjected to an axisymetric moving boundary heat flux. Numerical Heat Transfer, Part A, 61(8):614-632.

[13]Rakopoulos, C.D., Rakopoulos, D.C., Mavropoulos, G.C., et al., 2004a. Experimental and theoretical study of the short term response temperature transients in the cylinder walls of a diesel engine at various operating conditions. Applied Thermal Engineering, 24(5-6):679-702.

[14]Rakopoulos, C.D., Antonopoulos, K.A., Rakopoulos, D.C., et al., 2004b. Investigation of the temperature oscillations in the cylinder walls of a diesel engine with special reference to the limited cooled case. International Journal of Energy Research, 28:977-1002.

[15]Razelos, P., Lazaridis, A., 1967. A lumped heat-transfer coefficient for periodically heated hollow cylinders. International Journal of Heat and Mass Transfer, 10(10):1373-1387.

[16]Roslan, R., Saleh, H., Hashim, H., et al., 2014. Natural convection in an enclosure containing a sinusoidally heated cylindrical source. International Journal of Heat and Mass Transfer, 70:119-127.

[17]Sun, Y., Zhang, X., 2015. Transient heat transfer of a hollow cylinder subjected to periodic boundary conditions. Journal of Pressure Vessel Technology, 137:1-10.

[18]Takabi, B., 2016. Thermomechanical transient analysis of a thick-hollow FGM cylinder. Engineering Solid Mechanics, 4:25-32.

[19]Talaee, M.R., Atefi, G., 2011. Non-Fourier heat conduction in a finite hollow cylinder with periodic surface heat flux. Archive of Applied Mechanics, 81(12):1793-1806.

[20]Talaee, M.R., Alizadeh, M., Bakhshandeh, S., 2014. An exact analytical solution of non-Fourier thermal stress in cylindrical shell under periodic boundary condition. Engineering Solid Mechanics, 2(4):293-302.

[21]Yan, Y., Malen, J.A., 2013. Periodic heating amplifies the efficiency of thermoelectric energy conversion. Energy & Environmental Science, 6(4):1267-1273.

[22]Zhang, J., Li, G., Li, S., 2015. Analysis of transient displacements for a ceramic-metal functionally graded cylindrical shell under dynamic thermal loading. Ceramics International, 41(9):12378-12385.