Dynamic and kinematic viscosity measurements with a resonating microtube

Sparks, D.; Smith, R.; Cruz, V.; Tran, Nam Nghiep; Chimbayo, A.; Riley, D. S.; Najafi, Nader

doi:10.1016/j.sna.2008.09.013

Cited by 36 publications

(20 citation statements)

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“…In a recent paper by Rinaldi et al (2010), the inside diameter of the circular microtubes considered ranged from 1 to 100 mm. It was reported that microtubes/ microbeams containing an internal fluid flow exist in a class of microresonators [see, e.g., Najmzadeh et al (2007), Enoksson et al (1997), Sparks et al (2009)]. It is not surprising, therefore, that the topic of fluid transport through beams (or tubes) is now of considerable interest for potential micro-and nano-fluidic device applications (Whitby and Quirke, 2007).…”

Section: Introductionmentioning

confidence: 99%

Size-dependent vibration characteristics of fluid-conveying microtubes

Wang

2010

Journal of Fluids and Structures

174

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Section: Introductionmentioning

confidence: 99%

Size-dependent vibration characteristics of fluid-conveying microtubes

Wang

2010

Journal of Fluids and Structures

174

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“…property is necessary in almost all the fields related to fluid flow [7]. For this reason, numerous works can be found in open literature on its numerical and experimental determination.…”

Section: Introductionmentioning

confidence: 99%

“…The experimental methods found for the viscosity determination use rheometer [8], resonating tubes [7], commercial capillary and falling-body viscometer [9]- [11], optical methods [12]. They are mainly indirect methods and the kinematic viscosity is often deduced from the dynamic one by using the density [7], [10], [12].…”

Section: Introductionmentioning

confidence: 99%

“…They are mainly indirect methods and the kinematic viscosity is often deduced from the dynamic one by using the density [7], [10], [12]. Nevertheless, most of the studies are related to pure fluid [7], obviously to single phase flow [7], [8] and to standard conditions. The temperatures are generally lower than the boiling point and pressure around atmosphere except for petroleum related studies.…”

Section: Introductionmentioning

confidence: 99%

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Novel viscosity determination method: Validation and application to fuel flow

Gascoin

Fau

Gillard

2011

Flow Measurement and Instrumentation

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“…As reported by Rinaldi et al (2010), the design parameters of microstructures would meet requirements of several aspects, such as the material properties, size, geometry, boundary conditions, and modal properties. In this article, we focus on a class of microstructures that may be characterized as micromachined pipes containing internal fluid flow (see, e.g., Enoksson et al 1995Enoksson et al , 1997Westberg et al 1999;Burg et al 2007;Najmzadeh et al 2007;Sparks et al 2009). …”

Section: Introductionmentioning

confidence: 99%

Microfluid-induced vibration and stability of structures modeled as microscale pipes conveying fluid based on non-classical Timoshenko beam theory

Xia

Wang

2010

Microfluid Nanofluid

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The problem of microfluid-induced vibration and instability in the walls of the micro-channels containing internal fluid is now of considerable interest for potential micro-fluidics device applications. In this article, we have studied a non-viscous and incompressible fluid through microstructures. Based on a modified couple stress theory, a non-classical Timoshenko beam model is developed for the free vibration of microstructures containing internal fluid flow, modeled as micromachined pipes conveying fluid. Compared with the classical pipe models, this new model contains a material length scale parameter which can describe the microstructure-dependent vibration characteristics of the microscale pipes. By considering the effect of the microfluid flow, the equations of motion are derived using Hamiltonian approach. Based on the newly developed Timoshenko model, the effects of material length scale parameter and Poisson ratio on the vibration characteristics and the critical flow velocity are discussed. When the outside diameter of the pipe becomes comparable to the material length scale parameter, it is found that the natural frequencies increase remarkably and that the critical flow velocities predicted by the non-classical Timoshenko beam theory are much higher than that predicted by the classical beam theory. The size effects, however, are almost diminishing as the diameter of the pipe is far greater than the material length scale parameter. This study might be helpful to characterize the dynamical behavior of microscale pipes conveying fluid or design microfluidic and nanofluidic devices in a wide range of applications.Keywords Microscale pipes conveying fluid Á Vibration Á Non-classical Timoshenko beam model Á Size effect Á Microfluidic device 1 Introduction

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Dynamic and kinematic viscosity measurements with a resonating microtube

Cited by 36 publications

References 5 publications

Size-dependent vibration characteristics of fluid-conveying microtubes

Size-dependent vibration characteristics of fluid-conveying microtubes

Novel viscosity determination method: Validation and application to fuel flow

Microfluid-induced vibration and stability of structures modeled as microscale pipes conveying fluid based on non-classical Timoshenko beam theory

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