Removal of gas bubbles from highly viscous non-Newtonian fluids using controlled vibration

Zhan, Xueying; He, Yu; Shen, Baojun; Sun, Zhuang; Shi, Tielin; Li, Xiwen

doi:10.1016/j.ces.2018.04.012

Cited by 13 publications

(2 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Non-Newtonian fluids have a huge range of industrial applications, such as high molecular weight systems, most multiphase mixtures, foods, and solutions. When air is involved in such procedures as agitation, mixing, dispersion, and kneading, then gas bubbles are isolated and assorted in fluids given by Zhan et al [27]. Materials displaying non-Newtonian flow characteristics include natural products, food products, magmas and lavas, biological fluids, dairy wastes, and agricultural wastes, building materials, soap solutions, polymer melts and solutions, multiphase mixtures, and personal care products including cosmetics and toiletries, given by Ijaz et al [28].…”

Section: Introductionmentioning

confidence: 99%

Slip Effects on Unsteady Oblique Stagnation Point Flow of Nanofluid in a View of Inclined Magnetic Field

Rizwana

Hussain

Nadeem

2020

Mathematical Problems in Engineering

View full text Add to dashboard Cite

This study may be applicable in heavy power engine and cooling of a nuclear reactor, insulation for buildings, petroleum reservoir operations, and magnetic material processing solar energy collectors. In this manuscript, the slip results are evaluated for the non-Newtonian fluid on the oblique stagnation point flow of induced magnetic field over the oscillating surface. The valuation of heat flux is examined through the Fourier law of heat transfer. The metallic nanoparticle Copper Cu is within the base fluid, and water is utilized in the analysis. Nanofluids have benefits such as steadiness of the working fluid, decreasing blockage, clogs, decreasing prices, decreasing the friction coefficient, and decreasing the size of the heat transfer system. Similarity variables are utilized to convert the developed flow into higher nonlinear coupled ordinary differential equations (ODE) which are tackled numerically using a mathematical technique such as the bvp4c method in Maple and Matlab software. According to the present geometry, the flow behavior of the operating nanofluid has analyzed by stream lines. Disparities in velocity and temperature profile are demonstrated by graphs to describe the effects of controlling parameters. The Casson fluid parameter enhances the velocity of the fluid. The system heats up by the impact of Joule heating and dissipation.

show abstract

Section: Introductionmentioning

confidence: 99%

Slip Effects on Unsteady Oblique Stagnation Point Flow of Nanofluid in a View of Inclined Magnetic Field

Rizwana

Hussain

Nadeem

2020

Mathematical Problems in Engineering

View full text Add to dashboard Cite

show abstract

“…[5][6][7][8] The air brought by the synthesis and injection of fluids can easily form gas bubbles when the fluids flow in open containers. 9) In some applications, bubbles are beneficial. The flow of thermal bubbles contributes to fluid mixing, 10) air-filled microbubbles can be used as echocontrast agents for sonographic applications in clinical settings, 11) and bubble flotation can also remove inclusions from liquid steel.…”

Section: Introductionmentioning

confidence: 99%

Mechanism study of bubble removal in narrow viscous fluid by using ultrasonic vibration

Wang¹,

Chen²,

Chen³

et al. 2019

Jpn. J. Appl. Phys.

View full text Add to dashboard Cite

The mechanism of bubble removal in a narrow viscous fluid by using ultrasonic vibration is analyzed in this study. Experimental studies were performed on the adhesive bonding between a carbon fiber reinforced plastic (CFRP) laminate and an aluminum plate. After applying ultrasonic vibration on the CFRP laminate, it was found that the high-frequency vibration could induce an oscillating flow of the adhesive in the narrow bonding layer. Such a flow caused the entrapped bubbles to move and break until all of them were eliminated from the viscous adhesive. A fluid–solid coupling simulation and fluid tracer analysis were performed to analyze the underlying principle of bubble motion. The results reveal that because of the internal pressure of the bubble and the asymmetric characteristic of the fluid resistance around the bubble, the oscillating fluid induced by ultrasonic vibration drove the bubble to move in the direction closest to the edge. The reduction of the gas volume fraction in the adhesive resulted in an improved bonding between the CFRP laminate and aluminum plate.

show abstract

Numerical Investigation of Degassing Behavior of Highly Viscous Non‐Newtonian Fluids under Stirring

Shang²,

Zhang³

et al. 2019

Chem Eng & Technol

View full text Add to dashboard Cite

A method for accelerating bubble removal in non‐Newtonian liquids by forced stirring is proposed. Numerical simulations based on an Eulerian‐Eulerian multiphase model are performed to test its feasibility for various liquids including shear‐thickening, shear‐thinning, and Newtonian ones. Effects of the rotating speed of the stirrer and rheological properties of liquids on the degassing efficiency are evaluated, and the influencing mechanisms are analyzed in detail. The feasible regions of degassing in shear‐thinning liquids covering a certain range of viscosities are determined, from which one can easily decide the optimal rotating speed given the viscosity of liquids. The results provide a new idea of efficient degassing in shear‐thinning liquids for researchers and engineers.

show abstract

Removal of gas bubbles from highly viscous non-Newtonian fluids using controlled vibration

Cited by 13 publications

References 26 publications

Slip Effects on Unsteady Oblique Stagnation Point Flow of Nanofluid in a View of Inclined Magnetic Field

Slip Effects on Unsteady Oblique Stagnation Point Flow of Nanofluid in a View of Inclined Magnetic Field

Mechanism study of bubble removal in narrow viscous fluid by using ultrasonic vibration

Numerical Investigation of Degassing Behavior of Highly Viscous Non‐Newtonian Fluids under Stirring

Contact Info

Product

Resources

About