Heat Transfer Enhancement for Drag-Reducing Surfactant Fluid Using Photo-Rheological Counterion

Wang, Y.; Shi, Haifeng; Fang, Bo; Zakin, J. L.; Yu, Bo

doi:10.1080/08916152.2011.582569

Cited by 13 publications

(6 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this investigation, it has been observed that the strength of the thermal energy transfer rises with an increase in the Rayleigh number. A few other significant contributions using nanofluids to enhance heat transfer can be found in Xue et al [7], Wang et al [8], Qi et al [9], Wang et al [10], and Ge et al [11]. Additionally, important investigations related to the cavity flow can be found in Chen et al [12] and Luo and Yang [13].…”

Section: Introductionmentioning

confidence: 99%

Free Convection in a Square Ternary Hybrid Nanoliquid Chamber with Linearly Heating Adjacent Walls

Rajesh,

Sheremet

2023

Nanomaterials

View full text Add to dashboard Cite

In this study, mathematical modeling of the energy transfer and flow characteristics of ternary nanoliquid in a square enclosure is performed. In the cavity considered, the left and bottom borders are warmed uniformly or non-uniformly when the rest of the borders are cooled. The robust finite element method with quads and triangles as elements is used to work out the control equations of the problem. The current study is validated against previously published works, and good agreement is shown. The isolines are investigated for various Rayleigh numbers at uniform and non-uniform thermal boundary conditions. The impact of ternary hybrid nanofluids on the mean Nusselt number at hot borders is explored in dependence on the Rayleigh number and nanoparticle concentration. A comparative study of different fluids for the mean Nusselt number at heated borders is also conducted and analyzed with appropriate graphs and tables. It has been shown that ternary nanofluids can be more effective compared to mono- and hybrid nanofluids, with a more essential growth of the energy transport rate with nanoadditives concentration.

show abstract

Section: Introductionmentioning

confidence: 99%

Free Convection in a Square Ternary Hybrid Nanoliquid Chamber with Linearly Heating Adjacent Walls

Rajesh,

Sheremet

2023

Nanomaterials

View full text Add to dashboard Cite

show abstract

“…Light control offers several advantages, including high resolution and precision in time and space, ease of access, low cost, cleanliness, pollution‐free properties, and safety in operation (Abdollahi et al, 2019; Liu & Abbott, 2009). Furthermore, photorheological fluids have shown great potential for applications in drag reduction, heat transfer, and other areas (Shi et al, 2011), which has sparked broad interest among researchers (Shi et al, 2013; Wang et al, 2012; Wang et al, 2021). Photosensitive surfactant micellar solutions, as a type of photorheological fluid, can change the molecular structures of photosensitive groups, such as azobenzene groups and cinnamate groups, in solutions under different light conditions through photoisomerization (Guo et al, 2019), photopolymerization (Kumar & Raghavan, 2009), or photodegradation (Sakai et al, 2012), resulting in the transition of micellar self‐assembly morphologies and variation in rheological properties (Eastoe & Vesperinas, 2005; Liu et al, 2019; Pereira et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Rheology of novel photosensitive viscoelastic trimeric cationic surfactant/trans‐ortho‐methoxycinnamic acid micellar solutions

He,

Han,

Fang

et al. 2023

J Surfact & Detergents

View full text Add to dashboard Cite

Photosensitive micellar solutions of mixed surfactants and photosensitive additives have gained much interest. However, there are no reports on photosensitive micellar solutions containing trimeric cationic surfactant. In the study, novel photosensitive viscoelastic micellar solutions consisting of trimeric cationic surfactant (TEC) and trans‐ortho‐methoxycinnamic acid (trans‐OMCA) were investigated. This study utilized rheology, UV–vis spectroscopy, and cryo‐TEM to investigate the photo‐responsive behavior and mechanism of the TEC/trans‐OMCA micellar solutions. Rheological studies revealed that the concentration of TEC and trans‐OMCA, as well as temperature, significantly affected the viscoelastic properties of the micellar solutions. Furthermore, the Carreau and Maxwell models might be used to characterize the flow curves and viscoelasticity of the micellar solutions, respectively. Notably, TEC/trans‐OMCA micellar solutions exhibited excellent light‐induced thinning characteristic, with the optimal performance at a mass ratio of φ = 0.5. After UV irradiation, the zero‐shear viscosity of TEC/trans‐OMCA (0.6/0.3 wt%) micellar solution was reduced by 352 times, while the viscoelasticity and the area of hysteresis loops were significantly reduced. This drastic change in the rheological characteristics of the micellar solutions could be attributed to the photoisomerization of trans‐OMCA and the resulting changes in the internal microstructure of the solutions. Moreover, the viscosity of the micellar solutions diminished as the temperature increased, with the remaining viscosity of the TEC/trans‐OMCA (1.0/0.5 wt%) micellar solution at 36.4 mPa s at 95°C. This study expands on the potential utilization of oligomeric surfactants in the construction of photorheological viscoelastic fluids.

show abstract

“…Moreover, there are also many studies on the turbulent drag reduction performance and mechanism of surfactant solutions. Wang et al 18 reported that the drag reduction performance of surfactant solution was lower at a low Reynolds number (Re < 10,000), due to the lower shear stress and the weaker shear-induced structures, which limited the application of surfactant solutions in the field of low-speed. Furthermore, Ma et al 16 and Tsukahara et al 17 both reported that the drag reduction and heat transfer performance of surfactant restrain each other, which limited its application in the field of heat transfer.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, Ma et al 16 and Tsukahara et al 17 both reported that the drag reduction and heat transfer performance of surfactant restrain each other, which limited its application in the field of heat transfer. Wang et al 18 reported that the drag reduction performance of surfactant solution was lower at a low Reynolds number (Re < 10,000), due to the lower shear stress and the weaker shear-induced structures, which limited the application of surfactant solutions in the field of low-speed. In the aspect of the numerical simulation of turbulent drag reduction by surfactant, Yu et al 19,20 have made several detailed works.…”

Section: Introductionmentioning

confidence: 99%

Direct numerical simulation of surfactant solution flow in the wide‐rib rectangular grooved channel

et al. 2018

View full text Add to dashboard Cite

The turbulent flow of surfactant solution in the wide‐rib rectangular grooved channels was studied by direct numerical simulation. Moreover, the variations of near‐wall streamwise vortices with time were discussed and the distributions of streamwise vortex radius, swirling strength and density were quantitatively investigated. It was found that the influence of microgrooves on the fluid mainly occurred within the buffer layer and microgrooves could induce numerous streamwise vortices with small size and swirling strength within the grooved valleys. The drag‐reducing enhancement mechanism of microgroove in the surfactant solution could be mainly considered as the competing results between the “restriction effect” and “tip effect” of microgroove, and the essential factor should be the numerous secondary streamwise vortices with small size and swirling strength within the grooved valleys. Furthermore, a predicted method for the optimal drag‐reducing size of microgroove was proposed, and the prediction values agreed well with the numerical results. © 2018 American Institute of Chemical Engineers AIChE J, 64: 2898–2912, 2018

show abstract

Heat Transfer Enhancement for Drag-Reducing Surfactant Fluid Using Photo-Rheological Counterion

Cited by 13 publications

References 13 publications

Free Convection in a Square Ternary Hybrid Nanoliquid Chamber with Linearly Heating Adjacent Walls

Free Convection in a Square Ternary Hybrid Nanoliquid Chamber with Linearly Heating Adjacent Walls

Rheology of novel photosensitive viscoelastic trimeric cationic surfactant/trans‐ortho‐methoxycinnamic acid micellar solutions

Direct numerical simulation of surfactant solution flow in the wide‐rib rectangular grooved channel

Contact Info

Product

Resources

About