Study of Vortex Breakdown in a Cylindrical Cavity with a Rotating Endwall

Yalagach, Akash; Salih, A.

doi:10.1615/interjfluidmechres.v43.i3.10

Cited by 2 publications

(2 citation statements)

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“…2 depicts a comparison based on the axial velocity along the z-axis in an enclosure with H/R = 1.5 and Re = 990 and 2180. As it can be seen, there is a good agreement with the present-CFD results and the CFD and experimental measurement of Yalagach and Salih [18], for both Reynolds number. In conclusion, the CFD model developed in this study can simulate the flow behavior with good adequacy to the realty.…”

Section: Numerical Resolution Mesh Stability and Validationsupporting

confidence: 85%

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Flow patterns of non-Newtonian nanofluid flow in cylindrical enclosure with rotating endwall: Effects of nanoparticles concentration

et al. 2021

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In this paper, a numerical study on the flow structure of non-Newtonian nanofluid in cylindrical enclosure with rotating end wall. The considered nanofluid, MWCNT-water, exhibits a strong power-law shear-thinning behavior with the increase in nanoparticles loading. The main focus in this study is the effect of nanoparticles concentration on the vortex breakdown phenomenon. The simulation results showed that adding a small amount of nanoparticle eliminate the vortex breakdown which is considered as a positive in mixing process. However, the increase in nanoparticles concentration as well as the enclosure aspect ratio promotes the apparition of secondary recirculation zone and stagnation zone.

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Section: Numerical Resolution Mesh Stability and Validationsupporting

confidence: 85%

“…2. Comparison of the axial velocity with literature (blue line: present study; dashed red line: CFD done by [18]; black circles: experiment done by [18]). both fluids (Newtonian and non-Newtonian).…”

Section: Numerical Resolution Mesh Stability and Validationmentioning

confidence: 95%