Results 31 to 40 of about 132,472 (337)

Micropropulsion and microrheology in complex fluids via symmetry breaking

, 2012
Many biological fluids have polymeric microstructures and display non-Newtonian rheology. We take advantage of such nonlinear fluid behavior and combine it with geometrical symmetry-breaking to design a novel small-scale propeller able to move only in ...
Brandt, Luca, Lauga, Eric, Pak, On Shun, Zhu, Lailai   +3 more
core   +1 more source

A three-dimensional immersed boundary method for non-Newtonian fluids [PDF]

, 2018
Fluid-structure-interaction (FSI) phenomenon is common in science and engineering. The fluid involved in an FSI problem may be non-Newtonian such as blood. A popular framework for FSI problems is Peskin's immersed boundary (IB) method.
Zhu, Luoding
core   +2 more sources

Rheology of waxy oils: A critical review

Applications in Engineering Science
Waxy oil is a rheologically complex material presenting shear-rate-dependent viscosity, static and dynamic yield stresses, gel elasto-viscoplasticity, time/deformation-dependent gel structure, and irreversibility.
Diogo E.V. Andrade, Cezar O.R. Negrão
doaj   +1 more source

Modeling and numerical simulation of non-Newtonian arterial blood flow for mild to severe stenosis

Alexandria Engineering Journal, 2023
The fundamental cause of coronary heart disease is thought to be atherosclerosis. Blood flow in arteries under plaque formation is widely studied using both experimental and theoretical methods in literature.
Sohail Nadeem, Shahbaz Ali, Nevzat Akkurt, Mohamed Bechir Ben Hamida, Shahah Almutairi, Hassan Ali Ghazwani, Sayed M Eldin, Zareen A. Khan, A.S. Al-Shafay   +8 more
doaj   +1 more source

Impact of pseudoplastic and dilatants behavior of Reiner-Philippoff nanofluid on peristaltic motion with heat and mass transfer analysis in a tapered channel

AIMS Mathematics, 2023
The main goal of this article is to investigate the effects of pseudoplastic, and dilatants behavior of non-Newtonian based nanofluid on peristaltic motion in an asymmetric tapered channel.
Muhammad Tahir , Yasir Khan, Adeel Ahmad
doaj   +1 more source

Flow of Non-Newtonian Fluids

Nihon Reoroji Gakkaishi(Journal of the Society of Rheology, Japan), 1982
The present paper summarizes various problems on non-Newtonian fluid mechanics. Due to complex rheological behaviors of non-Newtonian fluids, constitutive equations have highly nonlinear character. As two approaches to obtain constitutive equations, continuum mechanics and molecular theory are described, and then a number of models are presented ...
openaire   +4 more sources

Characteristics of stratified flows of Newtonian/non-Newtonian shear-thinning fluids

, 2017
Exact solutions for laminar stratified flows of Newtonian/non-Newtonian shear-thinning fluids in horizontal and inclined channels are presented. An iterative algorithm is proposed to compute the laminar solution for the general case of a Carreau non ...
Brauner, Neima, Picchi, Davide, Poesio, Pietro, Ullmann, Amos   +3 more
core   +1 more source

Propulsion in a viscoelastic fluid

, 2007
Flagella beating in complex fluids are significantly influenced by viscoelastic stresses. Relevant examples include the ciliary transport of respiratory airway mucus and the motion of spermatozoa in the mucus-filled female reproductive tract. We consider
Bird R. B., Bird R. B., Blake J. R., Blake J. R., Bray D., Denton R., Doi M., Dunn P. F., Eliezer N., Eric Lauga, Gelman R. A., Gilboa A., Giordano A. M., Gray J., Gueron S., Gueron S., Hayat T., Ho H. C., James S. L., Katz D. F., Katz D. F., King M., Larson R. G., Larson R. G., Lillehoj E. P., Liron N., Litt M., Litt M., Meyer F. A., Meyer F. A., Ross S. M., Shake M. P., Suarez S. S., Suarez S. S., Suarez S. S., Suarez S. S., Tam P. Y., Tanner R. I., Wolf D. P., Wolf D. P., Wolf D. P., Wolf D. P., Wolf D. P., Yates G. T.   +43 more
core   +1 more source

Melting of non-Newtonian phase change material in a finned triple-tube: Efficacy of non-uniform magnetic field

Case Studies in Thermal Engineering, 2021
In this paper, a numerical study is presented on the melting process and heat transfer enhancement of a non-Newtonian phase change material (NPCM) in a double tube and a finned triple tube.
Somayeh Davoodabadi Farahani, Amir Davoodabadi Farahani, Fatemeh Tayebzadeh, Amir H. Mosavi   +3 more
doaj   +1 more source

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

Advanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source