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ISSN Druckformat: 1044-5110
ISSN Online: 1936-2684
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IMPACT OF COMPOUND DROPS ON A PLANE SOLID: ROLE OF THE CORE DIAMETER
ABSTRAKT
The impact of water-in-Jatropha biodiesel compound drops on a solid surface is examined. The effects of variation of the core drop diameter (or the volume fraction, α) and the impact velocity (or Weber number, We) of the compound drops on the outcomes of the impact are reported. With an increase in α, there is a change in the interaction of inertia, viscous and surface forces resulting in interesting changes in the impact dynamics. The maximum spreading factor (βmax), the average spreading rate, and the receding are observed to depend on the volume fraction. βmax increases with the rise in α due to reduced viscous dissipation in the drop. The low volume fraction compound drops do not show any significant receding after βmax. However, significant receding is observed at higher α as water has very high surface tension. The water core recedes over the Jatropha biodiesel shell film deposited on the solid, resulting in double lamella formation. The compound drops of very high α show breakup of the core drop during receding at high We, resulting in deposition of small secondary core droplets on the shell film. The normal average spreading rate first decreases with the rise in α and then increases again when α rises to very high values.
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Blanken, N., Saleem, M.S., Antonini, C., and Thoraval, M.J., Rebound of Self-Lubricating Compound Drops, Sci. Adv., vol. 6, no. 11, Article ID eaay3499, 2020.
-
Blanken, N., Saleem, M.S., Thoraval, M.J., and Antonini, C., Impact of Compound Drops: A Perspective, Curr. Opin. Colloid Interface Sci, vol. 51, Article ID 101389, 2021.
-
Chen, R.H., Chiu, S.L., and Lin, T.H., Resident Time of a Compound Drop Impinging on a Hot Surface, Appl. Therm. Eng., vol. 27, pp. 2079-2085,2007a.
-
Chen, R.H., Kuo, M.J., Chiu, S.L., Pu, J.Y., and Lin, T.H., Impact of a Compound Drop on a Dry Surface, J. Mech. Sci. Technol., vol. 21, pp. 1886-1891, 2007b.
-
Chiu, S.L. and Lin, T.H., Experiment on the Dynamics of a Compound Drop Impinging on a Hot Surface, Phys. Fluids, vol. 17, Article ID 122103,2005.
-
Delcea, M., Mohwald, H., and Skirtach, A.G., Stimuli-Responsive LbL Capsules and Nanoshells for Drug Delivery, Adv. DrugDeliv. Rev, vol. 63, no. 9, pp. 730-747,2011.
-
Gao, P. and Feng, J.J., Spreading and Breakup of a Compound Drop on a Partially Wetting Substrate, J Fluid Mech., vol. 682, pp. 415-433, 2011.
-
Jadidbonab, H., Malgarinos, I., Karathanassis, I., Mitroglou, N., and Gavaises, M., We-T Classification of Diesel Fuel Droplet Impact Regimes, Proc. Roy. Soc. A, vol. 474, no. 2215, Article ID 20170759,2018.
-
Kumar, A. and Mandal, D.K., Impact of Emulsion Drops on a Solid Surface: The Effect of Viscosity, Phys. Fluids, vol. 31, Article ID 102106, 2019.
-
Kumar, A. and Mandal, D.K., Influence of the Surface Temperature on the Spreading and Receding Dynamics of an Impacting Biodiesel Drop, Heat Mass Transf., vol. 56, pp. 445-457, 2020.
-
Kumar, A. and Mandal, D.K., Residence Time of Emulsion Drops on an Inclined Surface above Leidenfrost Temperature, Atomiz. Sprays, vol. 31, no. 1, pp. 1-10, 2021.
-
Kumar, V., Kumar, A., and Mandal, D.K., Receding Dynamics of Jatropha Straight Vegetable Oil Drops Impacting a Heated Surface, Heat Transf. Eng., 2021. DOI: 10.1080/01457632.2021.1919974.
-
Li, J.X., Zhang, H., Liu, Q.F., and Bo, H.L., Dynamics of a Single Droplet with Different Viscosity Impact onto a Stainless-Steel Surface, IOP Conf. Series: Earth Environ. Sci., vol. 188, Article ID 012028,2018.
-
Liu, D. and Tran, T., Emergence of Two Lamellas during Impact of Compound Droplets, Appl. Phys. Lett., vol. 112, Article ID 203702, 2018.
-
Liu, D. and Tran, T., The Ejecting Lamella of Impacting Compound Droplets, Appl. Phys. Lett., vol. 115, Article ID 073702, 2019.
-
Liu, H.R., Zhang, C.Y., Gao, P., Lu, X.Y., and Ding, H., On the Maximal Spreading of Impacting Compound Drops, J. Fluid Mech, vol. 854, Article ID R6,2018.
-
Murphy, S.V. and Atala, A., 3D Bio-Printing of Tissues and Organs, Nat. Biotechnol., vol. 32, pp. 773-785, 2014.
-
Otsu, N., A Threshold Selection Method from Gray-Level Histograms, IEEE Transact. Syst, Man., Cy- bern., vol. 9, pp. 62-66, 1979.
-
Prunet-Foch, B., Legay, F., Vignes-Adler, M., and Delmotte, C., Impacting Emulsion Drop on a Steel Plate: Influence of the Solid Substrate, J. Colloid Interf. Sci., vol. 199, pp. 151-168, 1998.
-
Tang, C., Qin, M., Weng, X., Zhang, X., Zhang, P., Li, J., and Huang, Z., Dynamics of Droplet Impact on Solid Surface with Different Roughness, Int. J. Multiphase Flow, vol. 96, pp. 56-69,2017.
-
Tian, J.M. and Chen, B., Dynamic Behavior of Non-Evaporative Droplet Impact on a Solid Surface: Com-parative Study of R113, Water, Ethanol and Acetone, Exp. Therm. Fluid Sci., vol. 105, pp. 153-164, 2019.
-
Tasoglu, S., Kaynak, G., Szeri, A.J., Demirci, U., and Muradoglu, M., Impact of a Compound Droplet on a Flat Surface: A Model for Single Cell Epitaxy, Phys. Fluids, vol. 22, Article ID 082103, 2010.
-
Zhang, J.M., Li, E.Q., and Thoroddsen, T., Fine Radial Jetting during the Impact of Compound Drops, J. Fluid Mech, vol. 883, Article ID A46,2020.
-
Zhu, S., Kherbeche, A., Feng, Y., and Thoraval, M.J., Impact of an Air-in-Liquid Compound Drop onto a Liquid Surface, Phys. Fluids, vol. 32, Article ID 041705, 2020.
-
Nguyen Hoe D., Vu Truong V., Nguyen Phan H., Pham Binh D., Nguyen Vinh T., Vu Hung V., Nguyen Cuong T., Tran Duong K., A numerical study of an impacting compound droplet undergoing thermocapillary convection, Acta Mechanica, 233, 7, 2022. Crossref
-
Wang Lei, Thoraval Marie-Jean, Air-in-liquid compound drop impact onto a pool, Physics of Fluids, 34, 10, 2022. Crossref