Issue |
MATEC Web Conf.
Volume 240, 2018
XI International Conference on Computational Heat, Mass and Momentum Transfer (ICCHMT 2018)
|
|
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Article Number | 01003 | |
Number of page(s) | 6 | |
Section | Heat, Mass and Momentum Transfer | |
DOI | https://doi.org/10.1051/matecconf/201824001003 | |
Published online | 27 November 2018 |
Numerical investigation for convective heat transfer and friction factor under pulsating flow conditions
1
Mechanical Engineering Department, Istanbul University-Cerrahpasa, Avcilar Campus, 34320 Avcilar, Istanbul, Turkey
2
Mechanical Engineering Department, Recep Tayyip Erdogan University, Zihni Derin Campus, 53100 Merkez, Rize, Turkey
3
Mechanical Engineering Department, Istanbul Arel University, Tepekent Campus, 34537 Buyukcekmece, Istanbul, Turkey
* Corresponding author: erman.aslan@istanbul.edu.tr
For pulsating flow, the behaviours of the convective heat transfer and friction factor for a periodic corrugated channel are investigated numerically. The finite volume method is used in the numerical study. Three different Reynolds Averaged Numerical Simulation based turbulence models, namely the k-ω model, the Shear Stress Transport (SST) model and the transition SST model are used and compared. The results are also compared with the previous experiments for non-pulsating flow. Analyses are conducted for air flow through a corrugated channel which has sharp corrugation peaks with an inclination angle of 30° and a 5mm minimum channel height. Reynolds number is changed in the range 6294 to 7380, while keeping the Prandtl number constant at 0.70. A sinusoidal pulsatile flow condition which is F=400 and uA*=0.5 is used. Variations of the Nusselt number and the friction factor with the Reynolds number are studied. Non-pulsating flow results and pulsating flow results are compared with each other.
© The Authors, published by EDP Sciences, 2018
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