Estimation of increased flow resistance in a narrow catheterized artery — a theoretical model

Dash, Ranjan K.; Jayaraman, Girija; Mehta, K.N.

doi:10.1016/0021-9290(95)00153-0

Cited by 77 publications

(37 citation statements)

References 15 publications

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“…al. [18] estimated the increased flow resistance in a narrow catheterized artery using the Casson fluid model. Banerjee et al [19] investigated the changes in flow and mean pressure gradient across a coronary artery using power law and Carreau model, a shearrate-dependent non-Newtonian fluid model.…”

Section: Introductionmentioning

confidence: 99%

Application of Nanofluids for Cooling Newtonian and Non-Newtonian Blood Mimicking Fluids Flow in Annular Space

Karamallah¹,

Jehhef²

2017

EAS

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Abstract:An experimental study performed to investigate the effect of nanofluid forced convection heat transfer and fluid flow characteristic. Three types of nanofluids {γAl 2 O 3 , CuO and ZrO 2 -DIW} flow under laminar or turbulent condition in inner pipe. The shear thinning behavior of blood is more accurately modeled by non-Newtonian Blood Mimic Fluids BMF. Here heat transfer and friction factor correlations developed for nonreactive Newtonian and non-Newtonian BMF fluids of (water: glycerol: xanthan gums) and heparinized bovine blood. The results show that the BMF Nussult number (Nu b ) increased as increasing Graetz number, and as flow index (n) decreasing. Bovine blood gives the temperatures distribution similar to (BMF6) but with lower Nusselt number by (31.2%). The BMF friction factor increases with decreasing (n), but the Bovine blood gives higher friction factor as compared with BMF6 by (25.6%). It was observed that all nanofluids types showed higher heat transfer characteristics than the base fluid DIW. It was also noted that in the γAl 2 O 3 shows higher enhancement than the other by (82.4%) at (Re nf =12670) and (ɸ=1 vol.%). Comparisons present experimental results with previously reported results it gives good agreement.

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Section: Introductionmentioning

confidence: 99%

Application of Nanofluids for Cooling Newtonian and Non-Newtonian Blood Mimicking Fluids Flow in Annular Space

Karamallah¹,

Jehhef²

2017

EAS

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“…Tandon et al [2] analyzed the blood flow in the arteries by assuming it as Casson model. Dash et al [3] have analyzed steady and pulsatile flow considering pressure gradient as a function of time in a narrow catheterized artery taking into account blood as Casson fluid. Ramesh Gupta [4] has considered a constant property of viscous fluid entering a conduit under appropriate intake conditions so that its velocity is practically constant over the entry cross-section.…”

Section: Introductionmentioning

confidence: 99%

Entrance Region Flow of Herschel-Bulkley Fluid in an Annular Cylinder

Pai¹,

Kandasamy²

2014

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The entrance region flow of a Herschel-Bulkley fluid in an annular cylinder has been investigated numerically without making prior assumptions on the form of velocity profile within the boundary layer region. This velocity distribution is determined as part of the procedure by cross sectional integration of the momentum differential equation for a given distance z from the channel entrance. Using the macroscopic mass and momentum balance equation, the entrance length at each cross section of the entrance region of the annuli and pressure distribution have been calculated for specific values of Herschel-Bulkley number and various values of aspect ratio and flow behavior index. The effects of non-Newtonian characteristics and channel width on the velocity profile, pressure distribution and the entrance length have been discussed.

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“…Blood is the major biofluid which behaves like Newtonian fluid when it flows through larger diameter arteries (arteries with diameter greater than 200 m) [2,3]. At low shear rates in small diameter arteries, the apparent viscosity of blood increases markedly and hence it exhibits remarkable nonNewtonian character [4,5]. Merrill [6] reported that flow may cease in the presence of measurable stress implying that there is yield stress.…”

Section: Introductionmentioning

confidence: 99%

Mathematical Analysis of Blood Flow in Porous Tubes: A Comparative Study

Sankar

Nagar

2013

Advances in Mechanical Engineering

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The steady flow of Herschel-Bulkley and Casson fluids for blood flow in tubes filled with homogeneous porous medium with (i) constant and (ii) variable permeability is analyzed. The expression for the shear stress is obtained first by general iteration method and then using numerical integration; the solutions for velocity and flow rate are obtained. It is noticed that the shear stress and plug core radius are considerably higher in the case of variable permeability than those of the constant permeability case. The velocity and flow rate of both the fluids increase considerably with the increase in the permeability factor and they decrease with the increase in the yield stress of the fluids. The velocity and flow rate of Herschel-Bulkley fluid are considerably higher than those of Casson fluid. Aforesaid flow quantities are significantly higher for flow in tubes with variable permeability than for flow in tubes with constant permeability.

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Estimation of increased flow resistance in a narrow catheterized artery — a theoretical model

Cited by 77 publications

References 15 publications

Application of Nanofluids for Cooling Newtonian and Non-Newtonian Blood Mimicking Fluids Flow in Annular Space

Application of Nanofluids for Cooling Newtonian and Non-Newtonian Blood Mimicking Fluids Flow in Annular Space

Entrance Region Flow of Herschel-Bulkley Fluid in an Annular Cylinder

Mathematical Analysis of Blood Flow in Porous Tubes: A Comparative Study

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