Dergiler / Journal of Thermal Engineering / 2021 / Cilt: 7 - Sayı: 6

Mixed convection heat transfer from a vertical flat plate subjected to periodic oscillations

Sayfa
1377–1391
Yayın Tarihi
2021-09-02
DOI
—
🏛️Bu makalenin bibliyografik verileri ve tam metin bağlantısı DergiPark üzerinden sağlanmıştır.
DergiPark Kaydı ↗
✨

Yapay Zeka Hızlı Bakış & Çıkarımlar

AI Insight
⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

The obtained results are presented as a function of dimensionless numbers.

📌 3 Maddede Bu Makale

🎯
Amaç & Hipotez:In this study, effects on mixed convection heat transfer of oscillation parameters on a vertical flat plate surface subjected to constant heat flux are experimentally and numerically investigated.
📊
Temel Bulgular & Veri:The effects of these parameters on the heat transfer performance are analyzed.
💡
Sonuç & Katkı:The obtained results are presented as a function of dimensionless numbers.
🔬Tür:Modelleme & Sayısal Simülasyon
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Heat transfer enhancement · Mixed convection · Oscillating vertical plate

Abstract

In this study, effects on mixed convection heat transfer of oscillation parameters on a vertical flat plate surface subjected to constant heat flux are experimentally and numerically investigated. The experimental setup includes a hanger–pulley system installed above a transparent enclosure contain a moving experimental model, flywheel-motor assembly generating the oscillating movement of the experimental model, power supply, and datalogger. The experimental model comprises two copper plates with attached thermocouples and Kapton heaters placed between the plates. In the study, heat flux applied to surface of the plates (q″), the Womersley number (Wo) and dimensionless oscillation amplitude (Ao) are varied. The effects of these parameters on the heat transfer performance are analyzed. This study is numerically solved using a control-volume based Computational Fluid Dynamics solver based on experimental data. The numerical results are compared with the experimental results and open literature. Instantaneous velocity and temperature profiles on the plate are obtained to explain the heat transfer mechanism. According to the numerical and experimental results, heat transfer performance is significantly affected by oscillation parameters and heat flux applied to the plate surface. The mixed convection heat transfer increases with the increase in oscillation parameters for all tested heat fluxes. The obtained results are presented as a function of dimensionless numbers.

🔖

Bu Makaleye Atıf Yap

AKCAY, S., AKDAG, U. (2021). Mixed convection heat transfer from a vertical flat plate subjected to periodic oscillations. Journal of Thermal Engineering, Cilt: 7 - Sayı: 6, 1377–1391. https://ajindex.com/articles/681976

📄 Tam Metin PDF Okuyucu

📄

PDF görüntüleyici hazırlanıyor...

Kaynakça (12)

  1. Cortell R. Flow and heat transfer in moving fluid over a moving flat surface. Theor. Comput. Fluid Dyn 2007; 21:435–446. doi:10.1007/s00162-007-0056-z
  2. Akdag U, Cetin O, Demiral D, Ozkul I. Experimental investigation of convective heat transfer on a flat plate subjected to a transversely synthetic jet. Int. Comm. Heat Mass Transfer 2013; 49: 96-103. doi:10.1016/j.icheatmasstransfer.2013.08.020
  3. Akdag U, Akcay S, Demiral D, Palancioglu H. Experimental investigation of heat transfer with a transversely pulsating jet on a flat plate. J. of Thermal Science and Technology 2018;8:2,63-74
  4. Khonakdar DR, Raveshi MR. Mixed convection on a vertical plate in supercritical fluids by selecting the best equation of state. J. of Supercritical Fluids. 2016;107:549–559. doi:10.1016/j.supflu.2015.07.013
  5. Akcay S, Akdag U. Parametric investigation of effect on heat transfer of pulsating flow of nanofluids in a tube using circular rings. Pamukkale University, Journal of Engineering Sciences 2018;24:4,597-604. doi: 10.5505/pajes.2017.70120
  6. Akdag U, Akcay S, Demiral D. The investigation of the heat transfer characteristics of a cross-flow pulsating jet in a forced flow. Computational Thermal Sciences: An International Journal 2017;9:6,567–582. doi: 10.1615/ComputThermalScien.2017019765
  7. Sayar E. Experimental development of a Nusselt correlation for forced reciprocating oscillated vertical annular glycerol flow through a porous domain. Heat and Mass Transfer 2017;53: 2351–2361. doi:10.1007/s00231-017-1987-6
  8. Ellahi R, Alamri SZ, Basit A, Majeed A. Effects of MHD and slip on heat transfer boundary layer flow over a moving plate based on specific entropy generation. Journal of Taibah University for Science 2018;12:4,476-482. doi: 10.1080/16583655.2018.1483795
  9. Kareem AK, Gao S, Ahmed AQ. Unsteady simulations of mixed convection heat transfer in a 3D closed lid-driven cavity. International Journal of Heat and Mass Transfer 2016;100:121–130. doi: 10.1016/j.ijheatmasstransfer.2016.04.073
  10. Chen TS, Strobel FA. Buoyancy effects on heat and mass transfer in boundary layer on a continuous, moving horizontal plate. Journal Numerical Heat Transfer 1980;3:1,115-130. doi.10.1080/01495728008961750
  11. Calmidi VV, Mahajan RL. Mixed convection over a heated horizontal surface in a partial enclosure. International Journal of Heat and Fluid Flow 1998;19:358-367. doi:10.1016/S0142-727X(98)00002-2
  12. Souza JA, Vargas JVC, Bianchi MVA. Friction and heat