Academic literature on the topic 'Fluid dynamics Viscous flow Viscoelasticity'

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Journal articles on the topic "Fluid dynamics Viscous flow Viscoelasticity"

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Luo, Zheng Yuan, and Bo Feng Bai. "Dynamics of capsules enclosing viscoelastic fluid in simple shear flow." Journal of Fluid Mechanics 840 (February 14, 2018): 656–87. http://dx.doi.org/10.1017/jfm.2018.88.

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Previous studies on capsule dynamics in shear flow have dealt with Newtonian fluids, while the effect of fluid viscoelasticity remains an unresolved fundamental question. In this paper, we report a numerical investigation of the dynamics of capsules enclosing a viscoelastic fluid and which are freely suspended in a Newtonian fluid under simple shear. Systematic simulations are performed at small but non-zero Reynolds numbers (i.e. $Re=0.1$) using a three-dimensional front-tracking finite-difference model, in which the fluid viscoelasticity is introduced via the Oldroyd-B constitutive equation.
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Yang, Jie, Li Xin Mao, and Liang Hua Xu. "Rheological Behavior of Polyacrylonitrile Solution." Advanced Materials Research 11-12 (February 2006): 403–6. http://dx.doi.org/10.4028/www.scientific.net/amr.11-12.403.

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The rheological properties and viscoelasticity of PAN/DMSO solutions were studied by means of revolving rheometer under the scan modes of steady shear rate and dynamic frequency. The effects of shear rate and temperature of PAN/DMSO solution on its Non-Newtonian viscous index, zero shear viscosity, activation energy of viscous flow and modulus of the solutions were studied. It was found that PAN/DMSO solution is a kind of pseudoplastic fluid. And the more temperature of solution, the less Non-Newtonian viscous index at steady experiment curve, the less the loss modulus and storage modulus of s
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Yang, Qiang, and Lisa Fauci. "Dynamics of a macroscopic elastic fibre in a polymeric cellular flow." Journal of Fluid Mechanics 817 (March 20, 2017): 388–405. http://dx.doi.org/10.1017/jfm.2017.66.

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We study the dynamics and transport of an elastic fibre in a polymeric cellular flow. The macroscopic fibre is much larger than the infinitesimal immersed polymer coils distributed in the surrounding viscoelastic fluid. Here we consider low-Reynolds-number flow using the Navier–Stokes/Fene-P equations in a two-dimensional, doubly periodic domain. The macroscopic fibre supports both tensile and bending forces, and is fully coupled to the viscoelastic fluid using an immersed boundary framework. We examine the effects of fibre flexibility and polymeric relaxation times on fibre buckling and trans
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Hassan, A. Abu-El. "Spherical Couette flow of Oldroyd 8-constant model Part I. Solution up to the second-order approximation." Canadian Journal of Physics 84, no. 5 (2006): 345–64. http://dx.doi.org/10.1139/p06-053.

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The steady flow of an incompressible Oldroyd 8-constant fluid in the annular region between two spheres, or so-called spherical Couette flow, is investigated. The inner sphere rotates with anangular velocity Ω about the z-axis, which passes through the center of the spheres, while the outer sphere is kept at rest. The viscoelasticity of the fluid is assumed to dominate the inertia such that the latter can be neglected in the momentum equation. An analytical solution is obtained through the expansion of the dynamical variables in a power series of the dimensionless retardation time. The leading
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Kumitsky, B. M., N. A. Savrasova, A. V. Nikolaichik, and E. S. Aralov. "RHEOLOGICAL MODELING OF THE STRESS-STRAIN STATE IN FLAT COMPACTION OF COMPOSITE MATERIALS." Russian Journal of Building Construction and Architecture, no. 4(48) (January 6, 2021): 21–30. http://dx.doi.org/10.36622/vstu.2020.48.4.003.

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Statement of the problem. The article investigates the deformation behavior of a composite material in the process of its flat pressing. To solve this problem, a rheological model is proposed, which is based on the phenomena occurring in a viscous (Newtonian) incompressible fluid, which occupies the volume between two absolutely rigid parallel planes of finite dimensions of rectangular shape approaching at a low speed. Within the framework of mechanics of a continuous medium under conditions of a plane deformed state, the problem is solved in two dimensions about a slow flow in the absence of
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Kumitsky, B. M., N. A. Savrasova, A. V. Nikolaichik, and E. S. Aralov. "RHEOLOGICAL MODELING OF THE STRESS-STRAIN STATE IN FLAT COMPACTION OF COMPOSITE MATERIALS." Russian Journal of Building Construction and Architecture, no. 4(48) (January 6, 2021): 21–30. http://dx.doi.org/10.36622/vstu.2020.48.4.003.

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Statement of the problem. The article investigates the deformation behavior of a composite material in the process of its flat pressing. To solve this problem, a rheological model is proposed, which is based on the phenomena occurring in a viscous (Newtonian) incompressible fluid, which occupies the volume between two absolutely rigid parallel planes of finite dimensions of rectangular shape approaching at a low speed. Within the framework of mechanics of a continuous medium under conditions of a plane deformed state, the problem is solved in two dimensions about a slow flow in the absence of
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Leurer, Klaus C., and Jack Dvorkin. "Viscoelasticity of precompacted unconsolidated sand with viscous cement." GEOPHYSICS 71, no. 2 (2006): T31—T40. http://dx.doi.org/10.1190/1.2187795.

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The elastic properties of sand strongly depend on the grains’ contact stiffness, which can be increased significantly by solid matter and, depending on frequency, viscous fluid acting as contact cement. To calculate seismic velocities in precompacted fluid-cemented sand, we examine how a small amount of viscous fluid at the grain contacts influences their normal and tangential stiffnesses as a function of effective pressure. Using the Hertz-Mindlin approach and considering oscillatory loading in addition to precompaction of a combination of two elastic spheres, we extend the dry-contact elasti
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Кумицкий, Б. М., Н. А. Саврасова, А. В. Николайчик, and Е. С. Аралов. "RHEOLOGICAL MODELING OF THE STRESS-STRAIN IN FLAT COMPACTION OF COMPOSITE MATERIALS." НАУЧНЫЙ ЖУРНАЛ СТРОИТЕЛЬСТВА И АРХИТЕКТУРЫ, no. 4(60) (December 29, 2020): 78–86. http://dx.doi.org/10.36622/vstu.2020.60.4.008.

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Постановка задачи. В статье исследуется деформационное поведение композиционного материала в процессе его плоского прессования. Для решения этой проблемы предложена реологическая модель, в основе которой лежат явления, протекающие в вязкой (ньютоновской) несжимаемой жидкости, занимающей объем между двумя сближающимися с малой скоростью абсолютно жесткими параллельными плоскостями конечных размеров прямоугольной формы. В рамках механики сплошной среды в условиях плоского деформированного состояния решается задача в двух измерениях о медленном течении в отсутствии объемных сил и инерционных эффе
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AGGARWAL, NISHITH, and KAUSIK SARKAR. "Effects of matrix viscoelasticity on viscous and viscoelastic drop deformation in a shear flow." Journal of Fluid Mechanics 601 (April 25, 2008): 63–84. http://dx.doi.org/10.1017/s0022112008000451.

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The deformation of a Newtonian/viscoelastic drop suspended in a viscoelastic fluid is investigated using a three-dimensional front-tracking finite-difference method. The viscoelasticity is modelled using the Oldroyd-B constitutive equation. Matrix viscoelasticity affects the drop deformation and the inclination angle with the flow direction. Numerical predictions of these quantities are compared with previous experimental measurements using Boger fluids. The elastic and viscous stresses at the interface, polymer orientation, and the elastic and viscous forces in the domain are carefully invest
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Repetto, Rodolfo, Jennifer H. Siggers, and Julia Meskauskas. "Steady streaming of a viscoelastic fluid within a periodically rotating sphere." Journal of Fluid Mechanics 761 (November 25, 2014): 329–47. http://dx.doi.org/10.1017/jfm.2014.546.

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AbstractMotivated by understanding mass transport processes occurring in the vitreous chamber of the eye, we consider the steady streaming component of the flow generated in a viscoelastic fluid contained within a hollow, rigid sphere performing small-amplitude, periodic, torsional oscillations about an axis passing through its centre. The problem is solved semi-analytically, assuming that the amplitude of the oscillations is small. The paper extends the work by Repetto et al. (J. Fluid Mech., vol. 608, 2008, pp. 71–80), in which the case of a purely viscous fluid was analysed. However, in rea
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Dissertations / Theses on the topic "Fluid dynamics Viscous flow Viscoelasticity"

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Le, Roux Mélanie. "Simulation numérique du mouvement et de la déformation des neutrophiles : influence de la rhéologie et du type d'écoulement." Phd thesis, Toulouse, INPT, 2012. http://oatao.univ-toulouse.fr/8868/1/Leroux.pdf.

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La faible déformabilité et l'accumulation des neutrophiles (globules blancs) dans les capillaires pulmonaires peuvent entraîner des syndromes de détresse respiratoire. Nous étudions le comportement des neutrophiles grâce à un code numérique diphasique de type Volume Of Fluid dans différentes configurations confinées. Les cellules sont représentées successivement par quatre modèles différents : dans un premier temps, nous les modélisons par un fluide newtonien caractérisé par sa viscosité et sa tension de surface. Le noyau très visqueux qu'elles contiennent est pris en compte dans un second tem
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Pienaar, Veruscha. "Viscous flow through sudden contractions." Thesis, Cape Technikon, 2004. http://hdl.handle.net/20.500.11838/929.

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Thesis (DTech (Chemical Engineering))--Cape Technikon, Cape Town, 2004<br>Despite efforts since the 1950s, laminar flow through pipe fittings is still a topic that needs investigation (Jacobs, 1993). Most experimental studies on this topic include fittings such as contractions, expansions, elbows, valves and orifices (Edwards et aI., 1985; Turian et al., 1998; Pal & Hwang, 1999). Although sudden contractions are not often found in industry, most researchers included these fittings as part of their experimental investigation. The volume of work done on flow through sudden contracti
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Harries, Alun M. "Investigating viscous fluid flow in an internal mixer using computational fluid dynamics." Thesis, Aston University, 2000. http://publications.aston.ac.uk/13261/.

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This thesis presents an effective methodology for the generation of a simulation which can be used to increase the understanding of viscous fluid processing equipment and aid in their development, design and optimisation. The Hampden RAPRA Torque Rheometer internal batch twin rotor mixer has been simulated with a view to establishing model accuracies, limitations, practicalities and uses. As this research progressed, via the analyses several 'snap-shot' analysis of several rotor configurations using the commercial code Polyflow, it was evident that the model was of some worth and its predictio
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Kobine, James Jonathan. "Bifurcations and symmetries in viscous flow." Thesis, University of Oxford, 1992. http://ora.ox.ac.uk/objects/uuid:1a1a45bb-0d5a-4553-a93d-b0fa6814fc56.

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The results of an experimental study of phenomena which occur in the flow of a viscous fluid in closed domains with discrete symmetries are presented. The purpose is to investigate the role which ideas from low-dimensional dynamical systems have to play in describing qualitative changes that take place with variation of the governing parameters. Such a descriptive framework already exists for the case of the Taylor-Couette system, where the domain possesses a continuous azimuthal symmetry group. The present investigation is aimed at establishing the typicality of previously reported behaviour
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Liu, Hongwei. "Gas-kinetic methods for viscous fluid flows /." View abstract or full-text, 2007. http://library.ust.hk/cgi/db/thesis.pl?MATH%202007%20LIU.

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Shola, Peter Bamidele. "Numerical solution of a free-boundary viscous flow." Thesis, University of Essex, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.256393.

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Eichler, Brett I. "Evolution of a finite disturbance in a viscous fluid." Thesis, Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/12230.

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Fried, Jeremy. "Numerical Simulation of Viscous Flow: A Study of Molecular Dynamics and Computational Fluid Dynamics." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/34661.

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Molecular dynamics (MD) and computational fluid dynamics (CFD) allowresearchers to study fluid dynamics from two very different standpoints. From a microscopic standpoint, molecular dynamics uses Newton's second law of motion to simulate the interatomic behavior of individual atoms, using statistical mechanics as a tool for analysis. In contrast, CFD describes the motion of a fluid from a macroscopic level using the transport of mass, momentum, and energy of a system as a model. This thesis investigates both MD and CFD as a viable means of studying viscous flow on a nanometer scale. Specifica
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Blount, Maurice John. "Bending and buckling of a falling viscous thread." Thesis, University of Cambridge, 2010. https://www.repository.cam.ac.uk/handle/1810/252208.

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Park, Warn-Gyu. "A three-dimensional multigrid technique for unsteady incompressible viscous flows." Diss., Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/12097.

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Books on the topic "Fluid dynamics Viscous flow Viscoelasticity"

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IUTAM Symposium on Numerical Simulation of Non-Isothermal Flow of Viscoelastic Liquids (1993 Kerkrade, Netherlands). IUTAM Symposium on Numerical Simulation of Non-Isothermal Flow of Viscoelastic Liquids: Proceedings of an IUTAM symposium held in Kerkrade, the Netherlands, 1-3 November 1993. Kluwer Academic Publishers, 1995.

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Viscous flow. McGraw-Hill, 1990.

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Frank, Chorlton, and O'Neill M. E. 1938-, eds. Viscous and compressible fluid dynamics. Ellis Horwood, 1989.

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Huilgol, R. R. Fluid mechanics of viscoelasticity: General principles, constitutive modelling, analytical, and numerical techniques. Elsevier, 1997.

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Guzʹ, Aleksandr Nikolaevich. Dinamika szhimaemoĭ vi︠a︡zkoĭ zhidkosti: Dynamics of compressible viscous fluid. "A.S.K.", 1998.

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Dynamics of viscous compressible fluids. Oxford University Press, 2004.

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Joseph, Daniel D. Fluid dynamics of viscoelastic liquids. Springer-Verlag, 1990.

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Cherrett, M. A. Unsteady viscous flow in a high speed core compressor. Procurement Executive, Ministry of Defence, 1990.

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Stern, Frederick. Viscous-inviscid interaction with higher-order viscous-flow equations. Iowa Institute of Hydraulic Research, The University of Iowa, 1986.

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Constantinescu, Virgiliu Niculae. Dinamica fluidelor vîscoase: Stabilitatea mișcărilor laminare. Editura Academiei Române, 1993.

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Book chapters on the topic "Fluid dynamics Viscous flow Viscoelasticity"

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Pedlosky, Joseph. "Friction and Viscous Flow." In Geophysical Fluid Dynamics. Springer New York, 1987. http://dx.doi.org/10.1007/978-1-4612-4650-3_4.

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Fletcher, Clive A. J. "Incompressible Viscous Flow." In Computational Techniques for Fluid Dynamics. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-97071-9_7.

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Fletcher, Clive A. J. "Compressible Viscous Flow." In Computational Techniques for Fluid Dynamics. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-97071-9_8.

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Mehta, Unmeel B., U. Ghia, K. N. Ghia, and Saad Ragab. "Computational Methods for Viscous Flow." In Handbook of Fluid Dynamics and Fluid Machinery. John Wiley & Sons, Inc., 2009. http://dx.doi.org/10.1002/9780470172643.ch21.

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Rizzi, Arthur. "Computation of Viscous Transonic Flow Around the F5 Wing." In Computational Fluid Dynamics. Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-79440-7_9.

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Bellout, Hamid, and Frederick Bloom. "Incompressible Multipolar Fluid Dynamics." In Incompressible Bipolar and Non-Newtonian Viscous Fluid Flow. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-00891-2_1.

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Isogai, Koji. "Numerical Simulation of Unsteady Viscous Flow Around a Flapping Wing." In Computational Fluid Dynamics 2002. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-59334-5_106.

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Shende, Nikhil Vijay, and N. Balakrishnan. "A Matrix-Free Viscous Linearization Procedure for Implicit Compressible Flow Solvers." In Computational Fluid Dynamics 2010. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17884-9_92.

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Wang, Z. J., Yuzhi Sun, C. Liang, and Yen Liu. "Extension of the SD Method to Viscous Flow on Unstructured Grids." In Computational Fluid Dynamics 2006. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-92779-2_16.

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Hui, Wai-How, and Kun Xu. "Viscous Flow Computation Using Navier-Stokes Equations." In Computational Fluid Dynamics Based on the Unified Coordinates. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-25896-1_11.

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Conference papers on the topic "Fluid dynamics Viscous flow Viscoelasticity"

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Chotpattananont, Datchanee, and Anuvat Sirivat. "Electrorheological Properties of Suspensions Prepared From Polythiophene Conductive Polymer." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-79491.

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Electrorheological (ER) fluids are typically composed of polarizable particles dispersed in a non-conducting fluid. Upon the application of an electric field, chain-like or fibrillar aggregates of the suspended particles are oriented along the direction of the electric field, thereby inducing viscoelasticity and a drastic increase in viscosity. In our study, Poly(3-thiophene acetic acid), PTAA, has been developed for using as ER material. The rheological properties of this PTAA suspension upon the application of electric field were investigated under various deformations; oscillatory shear flo
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Buldakov, E., V. Sychev, I. Yetgorov, E. Buldakov, V. Sychev, and I. Yetgorov. "Viscous core of tornado-like flow." In 28th Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics, 1997. http://dx.doi.org/10.2514/6.1997-1786.

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Sharov, Dmitri, and Kazuhiro Nakahashi. "Hybrid prismatic/tetrahedral grid generation for viscous flow applications." In Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics, 1996. http://dx.doi.org/10.2514/6.1996-2000.

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Bhaskaran, R., and A. Rothmayer. "Instabilities in the viscous flow past airfoil leading edges." In Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics, 1996. http://dx.doi.org/10.2514/6.1996-2017.

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Moschetta, J. M., and D. Pullin. "Computation of hypersonic viscous flow - Are robustness and accuracy compatible?" In Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics, 1996. http://dx.doi.org/10.2514/6.1996-2087.

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NAKAHASHI, KAZUHIRO. "Viscous flow computations using a composite grid." In 8th Computational Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics, 1987. http://dx.doi.org/10.2514/6.1987-1128.

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Peraire, J., and K. Morgan. "Unstructured mesh generation for 3D viscous flow." In 29th AIAA, Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics, 1998. http://dx.doi.org/10.2514/6.1998-3010.

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Kleb, Bil, Bram van Leer, and Bill Wood. "Matching Multistage Schemes to Viscous Flow." In 17th AIAA Computational Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics, 2005. http://dx.doi.org/10.2514/6.2005-4708.

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Smith, Rick, and Wei Shyy. "Coupled computations of a flexible membrane wing and unsteady viscous flow." In Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics, 1995. http://dx.doi.org/10.2514/6.1995-2261.

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HASSAN, O., K. MORGAN, E. PROBERT, J. PERAIRE, and R. THAREJA. "Adaptive unstructured mesh methods for steady viscous flow." In 10th Computational Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics, 1991. http://dx.doi.org/10.2514/6.1991-1538.

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