2O3 and aqueous CMC solution as a single phase with an average particle size of 25 nm and four particle concentration of 0.0, 0.5, 1.0, and 1.5% were used. Effects of volume concentration on convective heat transfer coefficient were investigated in different Reynolds number for different vibration parameters. The results showed that in a steady flow, with Reynolds number, dispersion of nanoparticles causes the thermal boundary layer to grow rapidly than that of base fluid in axial direction and vibration act as a catalyst; at a given concentration much enhancement results than steady state. The ratio of convective heat transfer coefficient of unsteady state to a steady state flow of nanofluid with an increase of Reynolds number and increases with concentration. Vibration effects reduce in significance as frequency increases, and that they are more sensitive to amplitude to frequency. The largest increase of about 300% was observed under the condition of vibrational flow of nanofluid compared with a steady flow of base fluid.

">

Numerical Investigation of the Effects of Velocity and Particle Concentration on Heat Transfer of Vibrational Flow of Non-Newtonian Nanofluid

Santosh Kumar Mishra*, H. Chandra**, Arun Arora***
*_***Bhilai Institute of Technology, Durg, Chhattisgarh, India.
Periodicity:January - March'2019
DOI : https://doi.org/10.26634/jmat.8.1.16239

Abstract

In this paper, the effect of solid particle concentration and flow velocity of nanofluid with and without superimposed vibration at the wall were numerically investigated. For this purpose, non-newtonian nanofluid containing Al2O3 and aqueous CMC solution as a single phase with an average particle size of 25 nm and four particle concentration of 0.0, 0.5, 1.0, and 1.5% were used. Effects of volume concentration on convective heat transfer coefficient were investigated in different Reynolds number for different vibration parameters. The results showed that in a steady flow, with Reynolds number, dispersion of nanoparticles causes the thermal boundary layer to grow rapidly than that of base fluid in axial direction and vibration act as a catalyst; at a given concentration much enhancement results than steady state. The ratio of convective heat transfer coefficient of unsteady state to a steady state flow of nanofluid with an increase of Reynolds number and increases with concentration. Vibration effects reduce in significance as frequency increases, and that they are more sensitive to amplitude to frequency. The largest increase of about 300% was observed under the condition of vibrational flow of nanofluid compared with a steady flow of base fluid.

Keywords

CFD; Heat transfer coefficient; Vibrational flow; non-Newtonian Nanofluid; Laminar flow

How to Cite this Article?

Mishra, S. Kr., Chandra, H., Arora, A. (2019). Numerical investigation of the effects of velocity and particle concentration on heat transfer of Vibrational flow of non-Newtonian nanofluid. i-manager's Journal on Mathematics, 8(1), 35-47 https://doi.org/10.26634/jmat.8.1.16239

References

[1]. Carezzato, A., Alcantara, M. R., Romero, J., Gut, J., & Tadini, C. (2007). Non-Newtonian Heat Transfer on a plate heat exchanger with generalized configurations. Chemical Engineering Technology, 30(1), 21-26.
[2]. Chen , R., Lin, Y., & Lai, C. (2013). The Influence of Horizontal Longitudinal vibrations and the condensation section temperature on heat transfer performance of heat pipe. Heat Transfer Engineering, 34(1), 45-53.
[3]. Chhabra, R. P., & Richardson, J. F. (1999). Non-Newtonian Flow in the Process Industries: Fundamentals and Engineering Applications. Butterworth Heinemann.
[4]. Choi, S. (1995). Enhancing thermal conductivity of fluids with nanoparticle. ASME FEM, 231, 99.
[5]. Chou, C., Kihm, K., Lee, S., & Choi, S. (2005). Empirical correlation finding the role of temperature and particle size for nanofluid (Al2O3) thermal conductivity enhancement. Appl. Phys. Lett., 87(15).
[6]. Davarnejad, R., Barati, S., & Kooshki, M. (2013). CFD Simulation of the effect of particle size on the nanofluids convective heat transfer in the develop region in a circular tube. Springer Plus, 2, 192.
[7]. Deshpande, N. S., & Barigou, M. (2001). Vibrational flow of non-newtonian fluids. Chemical Engineering Science, 56, 3845-3853.
[8]. Easa, M., & Barigou, M. (2010). Enhancing radial temperature uniformity and boundary layer development in viscous Newtonian and non-Newtonian flow by Transverse oscillations: A CFD study. Chemical Engineering Science, 65(6), 2199- 2212.
[9]. Easa, M., & Barigou, M. (2011). CFD simulation of transverse vibration effects on radial temperature profile and thermal entrance length in laminar flow. AIChE Journal, 57(1), 51-56.
[10]. Fox, R. W., McDonald, A. T., & Pritchard, P. J. (2004). Introduction to Fluid Mechanics (6th Ed.). New York: Wiley.
[11]. Heyhat, M., Kowsary, F., Rashidi, A., Momenpour, M., & Amrollahi, A. (2013). Experimental investigation of laminar convective heat transfer and pressure drop of water based Al2O3 nanofluids in fully developed flow regime. Experimental Thermal and Fluid Science, 44, 483-490.
[12]. Hojjat, M., Etemad, S. G., & Bagheri, R. (2010). Laminar heat transfer of non-Newtonian nanofluid in circular tube. korean Journal of Chemical Engineering, 27(5), 1391-1396.
[13]. Hojjat, M., Etemad, S. G., Bagheri, R., & Thibault, J. (2011a). Convective heat transfer of non-Newtonian nanofluids through a uniformly heated circular tube. International Journal of Thermal Sciences, 50, 525-531.
[14]. Hojjat, M., Etemad, S. G., Bagheri, R., & Thibault, J. (2011b). Pressure Drop of Non-Newtonian nanofluids flowing through a horizontal circular tube. Journal of Dispersion and Technology, 33(7), 1066-1070.
[15]. Hojjat, M., Etemad, S. G., Bagheri, R., & Thibault, J. (2011c). Rheological characteristics of non-Newtonian nanofluids: Experimental investigation. International Communications in Heat and Mass Transfer, 38, 144-148.
[16]. Illbeigi, M., & Nazar, A. S. (2017). Numerical simulation of laminar convective heat transfer and pressure drop of water based Al2O3 nanofluid as a nanofluid by CFD. Trans Phenom Nano Micro Scales, 5(2), 130-138. 
[17]. Jiyuan, T., Guan-Heng, Y., & Chaoqun, L. (2015). Computational Fluid Dynamics- A practical approach. Waltham USA: Elsevier.
[18]. Klaczak, A. (1997). Report from experiments on heat transfer by forced vibrations of exchangers. Heat and Mass Transfer, 32, 477-480.
[19]. Kwant, P. B., Fierens, R., & Van Der Lee, A. (1973). Non-isothermal laminar flow - II. Experimental. Chemical Engineering Science, 28(6), 1317-1330.
[20]. Lee, Y. H., & Chang, S. (2003). The effect of vibration on critical heat flux in a vertical round tube. Journal of Nuclear Science and Technology, 40(10), 734-743.
[21]. Prasad, P. D., & Gupta, A. (2016). Experimental investigation on enhancement of heat transfer using Al2O3/water nanofluid in a tube with twisted tape inserts. Int. Commun. Heat Mass Transfer, 75, 154-161.
[22]. Sharma, K., Sunder, L. S., & Sarma, P. (2009). Estimation of heat transfer coefficient and friction factor in the transition flow with the with low volume concentration of Al2O3 nanofluid flowing in a circular tube with twisted tape insert. Int. Commun Heat Mass Transfer, 36, 503-507.
[23]. Tian, S., & Barigou, M. (2015). An improved vibration technique for enhancing temperature uniformity and heat transfer in viscous fluid flow. Chemical Engineering Science, 123, 606-619.
[24]. Yu, K., Park, C., Kim, S., Song, H., & Jeong, H. (2017). CFD analysis of nanofluid forced convection heat transport in laminar flow through a compact pipe. IOP Conf. Series: Journal of Physics, 885, 1-7.
[25]. Zhang, L., Lv, J., Bai, M., & Guo, D. (2014). Effect of vibration on forced convection heat transfer for SiO2 -Water nanofluids. Heat Transfer Engineering, 36(5), 452-461. https://doi.org/:10.1080/01457632.2014.935214
If you have access to this article please login to view the article or kindly login to purchase the article

Purchase Instant Access

Single Article

North Americas,UK,
Middle East,Europe
India Rest of world
USD EUR INR USD-ROW
Pdf 35 35 200 20
Online 35 35 200 15
Pdf & Online 35 35 400 25

Options for accessing this content:
  • If you would like institutional access to this content, please recommend the title to your librarian.
    Library Recommendation Form
  • If you already have i-manager's user account: Login above and proceed to purchase the article.
  • New Users: Please register, then proceed to purchase the article.