Numerical Investigation of the Thermal Performance of Corrugated Channel Heat Exchangers in Laminar Evaporation

Year 2025, Volume: 45 Issue: 2, 285 - 295, 30.10.2025

Sellami Karima

https://doi.org/10.47480/isibted.1665488

Abstract

Channels with wavy walls are commonly used to improve heat transfer in heat exchangers by enhancing fluid mixing and increasing surface area. This study looks at heat and mass transfer during evaporation in sinusoidal and triangular channels compared to straight ones. The goal is to better understand how geometric parameters impact thermal-hydraulic efficiency for heat exchanger optimization. The study uses the finite volume method to solve equations for momentum, energy, and mass conservation, with SIMPLER algorithm for accurate results. Key parameters like wave amplitude, wavelength, and mass flow rate were analyzed to assess their effects on heat and mass transfer. Results show that sinusoidal channels have the best performance, with a 25-40% improvement over triangular ones. This is because sinusoidal channels create more turbulence, enhance fluid mixing, and offer a larger surface area. Performance also increases with wave amplitude, as stronger undulations result in better convective heat transfer. However, longer wavelengths lead to decreased performance due to reduced flow disturbance and thermal gradients.

Keywords

evaporation , wet wall , corrugated channel , wavy , heat exchanger , thermal-hydraulic performance

References

• Abed, A. M., Jawad, H. M., & Hussain, A. A. (2020). Numerical investigation of heat and fluid flow in wavy microchannels using the SIMPLER algorithm. International Journal of Heat and Mass Transfer, 158, 119950.
• Akbarzadeh, M., Rashidi, S., & Esfahani, J. A. (2017). Influences of corrugation profiles on entropy generation, heat transfer, pressure drop, and performance in a wavy channel. Applied Thermal Engineering, 116, 278–291.
• Chaudhury, M. D., & Bhatia, R. (2020). Numerical simulation of heat transfer and fluid flow characteristics of triangular corrugated wavy channel. In Advances in Applied Mechanical Engineering: Select Proceedings of ICAMER 2019 (pp. 251–260).
• Cherif, A. S., Kassim, M. A., Benhamou, B., Harmand, S., Corriou, J. P., & Ben Jabrallah. (2011). Experimental and numerical study of mixed convection heat and mass transfer in a vertical channel with film evaporation. International Journal of Thermal Sciences, 50, 942–953.
• Fares, M. N., Al-Saad, M., Fazilati, M. A., Almutter, H. J., Jasim, D. J., Salahshour, S., & Baghae, S. (2024). Two-phase analysis of heat transfer of nanofluid flow in a wavy channel heat exchanger: A numerical approach. International Journal of Thermo-fluid, 23, 100786.
• Ghule, K., & Soni, M. S. (2017). Numerical heat transfer analysis of wavy microchannels with different cross sections. Energy Procedia, 109, 471–478.
• Gonda, A., Lancereau, P., Bandelier, P., Luo, L., Fan, Y., & Benezech, S. (2014). Water falling film evaporation on a corrugated plate. International Journal of Thermal Sciences, 81, 29–37.
• Jang, J.-H., & Yan, W.-M. (2004). Mixed convection heat and mass transfer along a vertical wavy surface. International Journal of Heat and Mass Transfer, 47, 419–428.
• Jang, J.-H., Yan, W.-M., & Liu, H.-C. (2003). Natural convection heat and mass transfer along a vertical wavy surface. International Journal of Heat and Mass Transfer, 46, 1075–1083.
• Laaroussi, N., Lauriat, G., & Desrayaud, G. (2009). Effects of variable density for film evaporation on laminar mixed convection in a vertical channel. International Journal of Heat and Mass Transfer, 52, 151–164.
• Lin, J., Huang, C. Y., & Su, C. C. (2007). Dimensional analysis for the heat transfer characteristics in the corrugated channels of plate heat exchangers. International Communications in Heat and Mass Transfer, 34, 304–312.
• Lin, L., Zhao, J., Lu, G., Wang, X. D., & Yan, W. M. (2017). Heat transfer enhancement in microchannel heat sink by wavy channel with changing wavelength/amplitude. International Journal of Thermal Sciences, 118, 423–434.
• Liu, Y., Wu, C., Li, M., & Zhang, Y. (2024). Optimization of heat transfer and pressure drop in corrugated channels with arc-shaped obstacles. International Journal of Heat and Mass Transfer, 219, 135943.
• Mills, Z. G., Warey, A., & Alexeev, A. (2016). Heat transfer enhancement and thermal–hydraulic performance in laminar flows through asymmetric wavy-walled channels. International Journal of Heat and Mass Transfer, 97, 450–460.
• Monssif, N., Feddaoui, M’barek, Nait Alla, A., & Charef, A. (2019). Channel wall cooling by evaporative falling water–ethanol and water–methanol films. Heat Transfer Engineering. https://doi.org/10.1080/01457632.2019.1661688
• Najim, M., Feddaoui, M., Nait Alla, A., & Charef, A. (2018). Computational study of liquid film evaporation along a wavy wall of a vertical channel. Mathematical Problems in Engineering, 2018(1), 4208059.
• Noui, Z., Si-Ameur, M., Ibrahim, A., Al-Tarabshehd, A., Djebara, A., Fazlizan, A., Ahmad Ludin, N., Bessanan, N., Azeez, H. L., & Imad ud Din, S. (2025). Advanced thermo-hydraulic analysis of wavy mini-channel heat sinks for enhanced photovoltaic cooling applications. Case Studies in Thermal Engineering, 72, 106382.
• Patankar, S. V. (1980). Numerical heat transfer and fluid flow. Hemisphere.
• Pati, S., Kumar, S., & Borah, A. (2017). Numerical investigation of thermo-hydraulic transport characteristics in wavy channels: Comparison between raccoon and serpentine channels. International Communications in Heat and Mass Transfer, 88, 171–176.
• Pazarlıoğlu, H. K., Gürsoy, E., Gürdal, M., Said, Z., Arslan, K., & Gedik, E. (2024). Numerical simulation of sudden expansion tubes with Ag-MgO nanofluid and innovative fin structure: A thermo-fluidic analysis. International Journal of Heat and Fluid Flow, 108, 109448.
• Sellami, K., Feddaoui, M., Labsi, N., Najim, M., Oubella, M., & Benkahla, Y. K. (2019). Direct evaporative cooling performance of ambient air using a ceramic wet porous layer. Chemical Engineering Research and Design, 142, 225–236.
• Sellami, K., Feddaoui, M’barek, Labsi, N., Najim, M., & Benkahla, Y. K. (2019). Numerical simulations of heat and mass transfer process of a direct evaporative cooler from a porous layer. Journal of Heat Transfer, 141(7), 071501. https://doi.org/10.1115/1.4043302
• Sharma, D., & Chamoli, S. (2017). Heat transfer analysis in a sinusoidal corrugated channel using SIMPLE and SIMPLER algorithms. Applied Thermal Engineering, 123, 393–404.
• Sui, Y., Teo, C. J., & Lee, P. S. (2012). Direct numerical simulation of fluid flow and heat transfer in periodic wavy channels with rectangular cross-sections. International Journal of Heat and Mass Transfer, 55, 73–88.
• Tanda, G., & Vittori, G. (1996). Fluid flow and heat transfer in a two-dimensional wavy channel. Heat and Mass Transfer, 31, 411–418.
• Wang, C. C., & Chen, C. K. (2002). Forced convection in a wavy-wall channel. International Journal of Heat and Mass Transfer, 45, 2587–2595. https://doi.org/10.1016/S0017-9310(01)00335-0
• Wang, G., & Vanka, S. P. (1995). Convective heat transfer in periodic wavy passages. International Journal of Heat and Mass Transfer, 38(17), 3219–3230. https://doi.org/10.1016/0017-9310(95)00051-A
• Yan, Y. Y., & Lin, T. F. (1999). Evaporation heat transfer and pressure drop of refrigerant R-134a in a plate heat exchanger. Journal of Heat Transfer, 121, 118–127.
• Yu, T., Guo, X., Tang, Y., Zhang, X., Wang, L., & Wu, T. (2023). Numerical investigation of fluid flow and heat transfer in high-temperature wavy microchannels with different shaped fins cooled by liquid metal. Micromachines, 14(7), 1366. https://doi.org/10.3390/mi14071366
• Zhu, Q., Liu, X., Zeng, J., Zhao, H., He, W., Deng, H., & Chen, G. (2025). Numerical study of heat transfer and fluid flow in a symmetric wavy microchannel heat sink reinforced by slanted secondary channels. Case Studies in Thermal Engineering, 65, 105605.