A CFD study on the evaporative cooling of a water droplet located in a duct
DOI:
https://doi.org/10.31181/rme200102149kKeywords:
Heat transfer, Droplet, Air-water contact, Evaporation, CoolingAbstract
The current numerical study aimed for analayzing heat transfer of a spherical water droplet placed in a rectangular duct. The problem particularly deals with air-cooling of the droplet. The computational fluid dynamic technique is used to treat the problem. In order to study the problem, the effect of evaporation on the droplet's heat transfer is taken into consideration to make the problem more realistic. Moreover, various parameters like the inlet velocity and the temperature of the upstream are numerically checked. It is found out that with involving evaporation, the mean temperature of the droplets increases in comparison with the case that there is no evaporation involved. The outcomes of the current study offer useful and deep insight into the evaporative cooling of a water droplet.
References
Abdolnezhad, H., Nourozi, M., & Emamian, A. (2018). 'Numerical investigation of a sedimenting droplet's falling dynamics and evaporation in a viscous fluid flow.' Internationa conference on applied research in science and engineering, 215-219.
Abed, A., Shcheklein, S., & Pakhaluev, V. (2020a). Comparative study on steady and unsteady heat transfer analysis of a spherical element using air/water mist two-phase flow. Thermal Science, 20, 55-55.
Abed, A., Shcheklein, S., & Pakhaluev, V. (2020b). An experimental investigation on the transient heat transfer characteristics using air/water droplets two-phase flow, in IOP Conference Series: Materials Science and Engineering, 791(1), 012001.
Arpaci, V.S., & Larsen, P.S. (1984). Convection heat transfer. Prentice Hall.
Betelin, V., Smirnov, N., Nikitin, V., Dushin, V., Kushnirenko, A., & Nerchenko, V. (2012). Evaporation and ignition of droplets in combustion chambers modeling and simulation. Acta Astronautica, 70, 23-35.
Chen, J.-N., Zhang, Z., Xu, R.N., Ouyang, X.L., & Jiang, P.X. (2016). Numerical investigation of the flow dynamics and evaporative cooling of water droplets impinging onto heated surfaces: an effective approach to identify spray cooling mechanisms. Langmuir, 32(36), 9135-9155.
Chuck, W., & Sparrow, E.M. (1987). Evaporative mass transfer in turbulent forced convection duct flows. International journal of heat and mass transfer, 30(2), 215-222.
Fan, S., Lakshminarayana, B., & Barnett, M. (1993). Low-Reynolds-number k-epsilon model for unsteady turbulent boundary-layer flows. AIAA journal, 31(10), 1777-1784.
Fisenko, S. P. & Khodyko, J. A. (2009). Low pressure evaporative cooling of micron-sized droplets of solutions and its novel applications. International journal of heat and mass transfer, 52(16), 3842-3849.
Jia, W., & Qiu, H.H. (2003). Experimental investigation of droplet dynamics and heat transfer in spray cooling. Experimental Thermal and Fluid Science, 27(7), 829-838.
Liu, Y., Liu, S., & Zhang, H. (2017). Numerical simulation of heat and moisture transfer in deep air buried. Procedia Engineering, 205, 1927-1933.
Mahdavi, M., Sharifpur, M. & Meyer, J. P. (2020). Fluid flow and heat transfer analysis of nanofluid jet cooling on a hot surface with various roughness. International Communications in Heat and Mass Transfer, 118, 104842.
Norouzi, M., Abdolnezhad, H., & Mandani, S. (2019). An experimental investigation on inertia motion and deformation of Boger drops falling through Newtonian media. Meccanica, 54(3), 473-490.
Pan, Z., Dash, S., Weibel, J.A., & Garimella, S.V. (2013). Assessment of water droplet evaporation mechanisms on hydrophobic and superhydrophobic substrates. Langmuir, 29(51), 15831-15841.
Pan, Z., Weibel, J.A., & Garimella, S.V. (2014). Influence of surface wettability on transport mechanisms governing water droplet evaporation. Langmuir, 30(32), 9726-9730.
Schlesinger, D., Sellberg, J.A., Nilsson, A., & Pettersson, L.G. (2016). Evaporative cooling of microscopic water droplets in vacuo: Molecular dynamics simulations and kinetic gas theory. The Journal of Chemical Physics, 144(12), 124-135.
Semenov, S., Starov, V., Velarde, M., & Rubio, R. (2011). Droplets evaporation: Problems and solutions. The European Physical Journal Special Topics, 197(1), 265-271.
Wei, X., Duan, B., Zhang, X., Zhao, Y., Yu, M., & Zheng, Y. (2017). Numerical simulation of heat and mass transfer in air-water direct contact using computational fluid dynamics. Procedia Engineering, 205, 2537-2544.
Yang, K., Hong, F., & Cheng, P. (2014). A fully coupled numerical simulation of sessile droplet evaporation using Arbitrary Lagrangian–Eulerian formulation. International Journal of Heat and Mass Transfer, 70, 409-420.
