Vortex-induced vibration of a cylinder in pulsating nanofluid flow

Amini, Y.; Akhavan, Setareh; Izadpanah, Ehsan

doi:10.1007/s10973-019-08980-5

Cited by 17 publications

(2 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This model has been constructed by considering a solid volume fraction of nanoparticles in the base fluid, and, later, the governing equations have been solved numerically by employing the finite volume method. As a result, this model has been widely considered by many scientists, engineers, and mathematicians, such as Benzema et al [3], Dero et al [4], Lund et al [5,6], Dogonchi, et al [7,8], Amini, et al [9], Zaib et al [10], Raza et al [11], Rasool et al [12,13], Dinarvand et al [14], and Roşca, et al [15] to investigate different types of flow. Furthermore, to keep the demand of the high heat transfer rate from industries and other sectors, researchers have introduced a new kind of the nanofluid by considering the two different types of the solid particles in the single convectional base fluid.…”

Section: Introductionmentioning

confidence: 99%

Dual Solutions and Stability Analysis of a Hybrid Nanofluid over a Stretching/Shrinking Sheet Executing MHD Flow

et al. 2020

View full text Add to dashboard Cite

In this paper, the unsteady magnetohydrodynamic (MHD) flow of hybrid nanofluid (HNF) composed of C u − A l 2 O 3 /water in the presence of a thermal radiation effect over the stretching/shrinking sheet is investigated. Using similarity transformation, the governing partial differential equations (PDEs) are transformed into a system of ordinary differential equations (ODEs), which are then solved by using a shooting method. In order to validate the obtained numerical results, the comparison of the results with the published literature is made numerically as well as graphically and is found in good agreements. In addition, the effects of many emerging physical governing parameters on the profiles of velocity, temperature, skin friction coefficient, and heat transfer rate are demonstrated graphically and are elucidated theoretically. Based on the numerical results, dual solutions exist in a specific range of magnetic, suction, and unsteadiness parameters. It was also found that the values of f ″ ( 0 ) rise in the first solution and reduce in the second solution when the solid volume fraction ϕ C u is increased. Finally, the temporal stability analysis of the solutions is conducted, and it is concluded that only the first solution is stable.

show abstract

Section: Introductionmentioning

confidence: 99%

Dual Solutions and Stability Analysis of a Hybrid Nanofluid over a Stretching/Shrinking Sheet Executing MHD Flow

et al. 2020

View full text Add to dashboard Cite

show abstract

“…To this end, technologies for harvesting energy, enhancing heat transfer and increasing thermal efficiency have attracted growing interest from various fields [1−7]. In particular, the phenomenon of vortex-induced vibration (VIV) has been extensively studied for the purpose of harvesting the kinetic energy in a free-stream flow and converting it into mechanical energy, which can then be converted to electrical energy via various mechanisms [8]. For example, placing a freely-moving airfoil in the unsteady supercritical wake of a cylinder can facilitate the harvesting of kinetic energy from the free-stream flow.…”

Section: Introductionmentioning

confidence: 99%

Lift characteristics of two tandem airfoils in the globally unstable wake of a heated cylinder

Zhai

Yin

Karimi

et al. 2020

J Therm Anal Calorim

View full text Add to dashboard Cite

In this numerical study, the effect of a globally unstable wake − generated by one or two rigid cylinders − on the lift characteristics of two tandem airfoils is investigated via two-dimensional scale-adaptive simulations at a Reynolds number of 10000, with and without cylinder heating. The two airfoils have NACA 0012 profiles and are at the same angle of attack ( =10˚). When the two airfoils are positioned behind a single cylinder, their lift characteristics depend strongly on the horizontal spacing between themselves and the cylinder. Both the fore and aft airfoils experience periodic limit-cycle oscillations in the lift coefficient (Cl) at a common natural frequency. Heating the cylinder to a temperature above that of the free-stream leads to monotonic decreases in the oscillation frequency and amplitude of Cl for both airfoils. When the single cylinder is replaced by two tandem cylinders, Cl oscillates less periodically, with broadband components appearing in the power spectra and with complex structures appearing in the attractors in phase space. The quantitative lift characteristics depend strongly on the horizontal spacing between the upstream and downstream cylinders. This study offers fresh insight into the effect of self-excited wake modes on the lift characteristics of tandem airfoils. Nomenclature c Chord length of airfoil Skin friction coefficient Lift coefficient D Diameter of cylinder f Frequency f1 Frequency of dominant flow instability G Gap height

show abstract

Numerical study on flow and heat transfer characteristics of square cylinder with lateral sides extension effect

Honymon

Varakhedkar

Kumar

2020

J Therm Anal Calorim

View full text Add to dashboard Cite

Vortex-induced vibration of a cylinder in pulsating nanofluid flow

Cited by 17 publications

References 40 publications

Dual Solutions and Stability Analysis of a Hybrid Nanofluid over a Stretching/Shrinking Sheet Executing MHD Flow

Dual Solutions and Stability Analysis of a Hybrid Nanofluid over a Stretching/Shrinking Sheet Executing MHD Flow

Lift characteristics of two tandem airfoils in the globally unstable wake of a heated cylinder

Numerical study on flow and heat transfer characteristics of square cylinder with lateral sides extension effect

Contact Info

Product

Resources

About