پیوندهای مفید
آمار
| تعداد نشریات | 21 |
| تعداد شمارهها | 699 |
| تعداد مقالات | 10,094 |
| تعداد مشاهده مقاله | 71,295,240 |
| تعداد دریافت فایل اصل مقاله | 63,016,150 |
Numerical Investigation of Thermohydraulic Performance in Laminar Flow through Microchannels Equipped with Longitudinal Vortex Generators | ||
| Journal of Heat and Mass Transfer Research | ||
| دوره 13، شماره 3 - شماره پیاپی 27، آذر 2026، صفحه 261-272 اصل مقاله (798.43 K) | ||
| نوع مقاله: Full Length Research Article | ||
| شناسه دیجیتال (DOI): 10.22075/jhmtr.2025.36208.1655 | ||
| نویسندگان | ||
| Zoubir Belkacemi* 1؛ Zakaria Boumahrat2؛ Ahmed Dhiyaeddine Foul2 | ||
| 1Departement of Physics, Faculty of Matter Sciences, Applied Energetic Physics Laboratory (LPEA), University of Batna 1, 05000 Batna, Algeria | ||
| 2Department of Mechanical Engineering, Faculty of Technology Sciences, Constantine 1, Frères Mentouri University, Constantine 25000, Algeria | ||
| تاریخ دریافت: 20 آذر 1403، تاریخ بازنگری: 05 خرداد 1404، تاریخ پذیرش: 30 خرداد 1404 | ||
| چکیده | ||
| Vortex generators (VGs) are widely employed to enhance heat transfer in channel flows by inducing vortices, with their performance strongly influenced by geometric parameters and flow conditions. This study numerically investigates the thermohydraulic performance of laminar flow (Re = 200–1200) in a rectangular microchannel (H = 0.26 mm) equipped with longitudinal vortex generators (LVGs) of reduced height (0.75H). The objective is to assess the impact of reduced LVG height on pressure loss and heat transfer enhancement, using water as the working fluid. Numerical simulations were validated against existing data, with deviations remaining below 10%, and were subsequently conducted for three LVG orientation angles (30°, 135°, and 150°). The results indicate that at Re = 1200, the LVGs increased the friction factor by up to 6% for 30° and 150° and 8% for 135°, while increasing the Nusselt number by up to 18% for 30° and 150° and 24% for 135°. The highest thermal performance factor of 1.21 was achieved at the 135° orientation for Re=1200, identifying it as the optimal configuration among those tested. | ||
| کلیدواژهها | ||
| Fluid flow؛ Heat transfer؛ Laminar flow؛ Microchannels؛ Vortex generators | ||
| مراجع | ||
|
[1] Dharaiya, V. V. and Kandlikar, S. G., 2012. Numerical investigation of heat transfer in rectangular microchannels under H2 boundary condition during developing and fully developed laminar flow. Journal of Heat Transfer, 134, 020911. [2] Khoshvaght-Aliabadi, M., Hosseinirad, E., Farsi, M. and Hormozi, F., 2021. Heat transfer and flow characteristics of novel patterns of chevron minichannel heat sink: An insight into thermal management of microelectronic devices. International Communications in Heat and Mass Transfer, 122, 105044. [3] Ajeel, R. K., Salim, W. S. I. W. and Hasnan, K., 2020. Numerical investigations of heat transfer enhancement in a house-shaped corrugated channel: Combination of nanofluid and geometrical parameters. Thermal Science and Engineering Progress, 17, 100376. [4] Buschmann, M. H., Azizian, R., Kempe, T., Juliá, J. E., Martínez-Cuenca, R., Sundén, B., Wu, Z., Seppälä, A. and Ala-Nissila, T., 2018. Correct interpretation of nanofluid convective heat transfer. International Journal of Thermal Sciences, 129, pp. 504-531. [5] Chen, C., Teng, J.-T., Cheng, C.-H., Jin, S., Huang, S., Liu, C., Lee, M.-T., Pan, H.-H. and Greif, R., 2014. A study on fluid flow and heat transfer in rectangular microchannels with various longitudinal vortex generators. International Journal of Heat and Mass Transfer, 69, pp. 203–214. [6] Liu, C., Teng, J., Chu, J.-C., Chiu, Y.-L., Huang, S., Jin, S., Dang, T., Greif, R. and Pan, H.-H., 2011. Experimental investigations on liquid flow and heat transfer in rectangular microchannel with longitudinal vortex generators. International Journal of Heat and Mass Transfer, 54(13), pp. 3069-3080. [7] Wang, Q., Chen, Q., Wang, L., Zeng, M., Huang, Y. and Xiao, Z., 2007. Experimental study of heat transfer enhancement in narrow rectangular channel with longitudinal vortex generators. Nuclear Engineering and Design, 237(7), pp. 686–693. [8] Wang, J., He, Y., Zeng, L., Liu, Z., Li, C. and Dou, J., 2024. Thermohydraulic performance intensification in a rectangular channel using punched vortex generators. International Communications in Heat and Mass Transfer, 157, 107799. [9] Wang, J., Zeng, L. and He, Y., 2024. Thermal performance augmentation of microchannel using curved rectangular winglet vortex generators having rectangular perforation. Chemical Engineering Science, 24, pp. 01160-6. [10] Srivastava, K. and Sahoo, R. R., 2024. Experimental and numerical study on thermal performance of new envelope and triangular vortex generators with different pitch and angle of attack. Thermal Science and Engineering Progress, 49, 102459. [11] Sun, Z., Zhang K., Li, W., Chen, Q. and Zheng, N., 2020. Investigations of the turbulent thermal-hydraulic performance in circular heat exchanger tubes with multiple rectangular winglet vortex generators. Applied Thermal Engineering, 168, 114838. [12] Datta, A., Sanyal, D. and Das, A. K., 2016. Numerical investigation of heat transfer in microchannel using inclined longitudinal vortex generator. Applied Thermal Engineering, 108, pp. 1008–1019. [13] Fahad, M. K., Ifraj, N. F., Tahsin, S. H. and Hasan, M. J., 2023. Numerical investigation of the hydrothermal performance of novel vortex generators in a rectangular channel by employing inclination and rotational angles. International Journal of Thermofluids, 20, 100500. [14] Feng, Z., Zhou, C., Guo, F., Zhang, J., Zhang, Q. and Li, Z., 2023. The effects of staggered triangular ribs induced vortex flow on hydrothermal behavior and entropy generation in microchannel heat sink. International Journal of Thermal Sciences, 191, 108331. [15] Sun, H., Fu, H., Ma, H., Sun, T., Luan, Y. and Zunino, P., 2024. Heat transfer enhancement mechanism of elliptical cylinder for minichannels with delta winglet longitudinal vortex generators. International Journal of Thermal Sciences, 198, 108839. [16] Zhang, J.-F., Jia, L., Yang, W.-W., Taler, J. and Oclon, P., 2019. Numerical analysis and parametric optimization on flow and heat transfer of a microchannel with longitudinal vortex generators. International Journal of Thermal Sciences, 141, pp. 211-221. [17] Ebrahimi, A., Roohi, E. and Kheradmand, S., 2015. Numerical study of liquid flow and heat transfer in rectangular microchannel with longitudinal vortex generators. Applied Thermal Engineering, 75, pp. 576-583. [18] Ebrahimi, A., Rikhtegar, F., Sabaghan, A. and Roohi, E., 2016. Heat transfer and entropy generation in a microchannel with longitudinal vortex generators using nanofluids. Energy, 101, pp. 190-201. [19] Fu, H., Sun, H., Yang, L., Yan, L., Luan, Y. and Magagnato, F., 2023. Effects of the configuration of the delta winglet longitudinal vortex generators and channel height on flow and heat transfer in minichannels. Applied Thermal Engineering, 227, 120401. [20] Pérez, B, R., Menéndez Pérez, A. and Sacasas Suárez, D., 2022. Influence of the punched holes on thermohydraulic performance and flow pattern of rectangular channels with a pair of perforated vortex generators. International Journal of Heat and Mass Transfer, 184, 122191. [21] Reddy, P. N., Verma V., Kumar A. and Awasthi M. K., 2023. CFD Simulation and Thermal Performance Optimization of Channel Flow with Multiple Baffles. Journal of Heat and Mass Transfer Research, 20, pp. 257- 268. [22] Demirağ H. Z., 2025. The impact of vortex generator positioning and heated surface orientation on thermal performance and flow dynamics in asymmetrically heated duct. Case Studies in Thermal Engineering, 70, 106075. [23] Zhang, G., Liu, J. and Sundén, B., 2021. Combined experimental and numerical studies on flow characteristic and heat transfer in ribbed channels with vortex generators of various types and arrangements. International Journal of Thermal Sciences, 167, 107036. [24] Salamatbakhsh, E. and Bayer, Ö., 2024. Hydrothermal performance of a wavy minichannel heat sink with longitudinal vortex generators. Thermal Science and Engineering Progress, 50, 102506. [25] Bansode, V. H., Verma, M., Naik, C. K., Pandhare, A., Anjinappa, C. , Prakash, C., Mohammed, S. J., Majdi, H. S. and Majdi, A., 2024. Air-side heat transfer enhancement using vortex generators on heat transfer surfaces- A comprehensive review, Journal of Heat and Mass Transfer Research, 22, pp. 255-272. [26] Brackbill, T. P. and Kandlikar, S. G., 2007. Effect of sawtooth roughness on pressure drop and turbulent transition in micro-channels. Heat Transfer Engineering, 28(9), pp. 662-669. [27] Ferrouillat, S., Tochon, P., Peerhossaini, H. and Garnier, J., 2006. Intensification of heat-transfer and mixing in multifunctional heat exchangers by artificially generated streamwise vorticity. Applied Thermal Engineering, 26(16), pp. 1820-1829. [28] White, F. M. 2016. Fluid Mechanics (8th ed.). New York: McGraw-Hill. [29] Fu, H., Sun, H., Yang, L., Yan, L., Luan, Y. and Magagnato, F., 2023. Effects of the configuration of the delta winglet longitudinal vortex generators and channel height on flow and heat transfer in minichannels. Applied Thermal Engineering, 227, 120401. [30] Wu, X., Fu, T., Wang, J., Zeng, L. and Zhang, F., 2024. A comparative study of fluid flow and heat transfer in the tube with multi-V-winglets vortex generators. Applied Thermal Engineering, 236, 121448. [31] Kays, W. M. and London, A. L., 1984. Compact Heat Exchangers. McGraw-Hill, New York, NY, pp. 105, 112. [32] Webb, R. L., Eckert, E. R. G. and Goldstein, R. J., 1971. Heat transfer and friction in tubes with repeated-rib roughness. International Journal of Heat and Mass Transfer, 14(4), pp. 601-614. [33] Croce, G. and D’Agaro, P., 2004. Numerical analysis of roughness effect on micro-tube heat transfer. Superlattices and Microstructures, 35, pp. 601–616. [34] Bi, C., Tang, G. H. and Tao, W. Q., 2013. Heat transfer enhancement in mini-channel heat sinks with dimples and cylindrical grooves. Applied Thermal Engineering, 55(1–2), pp. 121–132. | ||
|
آمار تعداد مشاهده مقاله: 630 تعداد دریافت فایل اصل مقاله: 39 |
||