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  Subjects -> PHILOSOPHY (Total: 365 journals)
'Ilu. Revista de Ciencias de las Religiones     Open Access   (Followers: 2)
Agone     Open Access  
Aisthesis     Open Access  
Aisthesis. Pratiche, linguaggi e saperi dell’estetico     Open Access   (Followers: 1)
Al-Jami'ah : Journal of Islamic Studies     Open Access   (Followers: 3)
Alpha (Osorno)     Open Access  
American Journal of Theology & Philosophy     Full-text available via subscription   (Followers: 25)
American Society for Aesthetics Graduate E-journal     Open Access   (Followers: 2)
Analecta Hermeneutica     Open Access  
Anales del Seminario de Historia de la Filosofía     Open Access  
Analysis     Hybrid Journal   (Followers: 11)
Analytic Philosophy     Hybrid Journal   (Followers: 7)
Annales UMCS. Sectio I (Filozofia, Socjologia)     Open Access  
Annali del Dipartimento di Filosofia     Open Access   (Followers: 1)
Annuaire du Collège de France     Open Access  
Anthropological Measurements of Philosophical Research     Open Access  
Apuntes Universitarios     Open Access   (Followers: 1)
Araucaria. Revista Iberoamericana de Filosofía, Política y Humanidades     Open Access   (Followers: 1)
Archai : revista de estudos sobre as origens do pensamento ocidental     Open Access  
Archiv fuer Rechts- und Sozialphilosphie     Full-text available via subscription   (Followers: 2)
Archiv für Geschichte der Philosophie     Full-text available via subscription   (Followers: 3)
Areté : Revista de Filosofia     Open Access  
Argos     Open Access   (Followers: 1)
Assuming Gender     Open Access   (Followers: 3)
Astérion     Open Access   (Followers: 2)
Australasian Catholic Record, The     Full-text available via subscription   (Followers: 6)
Australasian Journal of Philosophy     Hybrid Journal   (Followers: 161)
Australian Humanist, The     Full-text available via subscription   (Followers: 1)
Australian Journal of Parapsychology     Full-text available via subscription  
Axiomathes     Hybrid Journal   (Followers: 4)
Between the Species     Open Access   (Followers: 2)
Bijdragen     Full-text available via subscription   (Followers: 2)
Bioethics Research Notes     Full-text available via subscription   (Followers: 10)
BioéthiqueOnline     Open Access   (Followers: 1)
Biology and Philosophy     Hybrid Journal   (Followers: 8)
Bochumer Philosophisches Jahrbuch für Antike und Mittelalter     Full-text available via subscription   (Followers: 2)
Bollettino Filosofico     Open Access  
British Journal for the History of Philosophy     Hybrid Journal   (Followers: 19)
British Journal for the Philosophy of Science     Hybrid Journal   (Followers: 17)
British Journal of Aesthetics     Hybrid Journal   (Followers: 14)
Bulletin de Philosophie Medievale     Full-text available via subscription   (Followers: 4)
Bulletin of Symbolic Logic, The     Full-text available via subscription   (Followers: 3)
Cadernos do PET Filosofia     Open Access  
Cadernos Zygmunt Bauman     Open Access  
Canadian Journal of Philosophy     Full-text available via subscription   (Followers: 12)
Childhood & Philosophy     Open Access  
Chisholm Health Ethics Bulletin     Full-text available via subscription   (Followers: 1)
Church Heritage     Full-text available via subscription   (Followers: 8)
Cinta de Moebio     Open Access  
Circe de Clásicos y Modernos     Open Access  
Coactivity: Philosophy, Communication / Santalka: Filosofija, Komunikacija     Open Access  
Cognitive Semiotics     Full-text available via subscription   (Followers: 1)
Collingwood and British Idealism Studies     Full-text available via subscription   (Followers: 1)
Comparative and Continental Philosophy     Hybrid Journal   (Followers: 3)
Comparative Philosophy     Open Access   (Followers: 6)
CONJECTURA : filosofia e educação     Open Access  
Constellations     Hybrid Journal   (Followers: 8)
Contagion : Journal of Violence, Mimesis, and Culture     Full-text available via subscription   (Followers: 6)
Contemporary Chinese Thought     Full-text available via subscription   (Followers: 5)
Contemporary Political Theory     Partially Free   (Followers: 20)
Contemporary Pragmatism     Full-text available via subscription  
Continental Philosophy Review     Partially Free   (Followers: 13)
Contributions to the History of Concepts     Full-text available via subscription   (Followers: 2)
Conversations : The Journal of Cavellian Studies     Open Access  
Cosmos and History : The Journal of Natural and Social Philosophy     Open Access   (Followers: 2)
CR : The New Centennial Review     Full-text available via subscription   (Followers: 1)
Critical Horizons     Hybrid Journal   (Followers: 2)
Cuadernos de Bioetica     Open Access  
Cuestiones de Filosofía     Open Access  
Cultura. International Journal of Philosophy of Culture and Axiology     Open Access   (Followers: 3)
Cuyo Anuario de Filosofía Argentina y Americana     Open Access  
Dao     Hybrid Journal   (Followers: 3)
Décalages : An Althusser Studies Journal     Open Access  
Design Philosophy Papers     Full-text available via subscription   (Followers: 1)
Deutsche Zeitschrift für Philosophie     Full-text available via subscription   (Followers: 1)
Dialogue Canadian Philosophical Review/Revue canadienne de philosophie     Full-text available via subscription   (Followers: 1)
Diánoia     Open Access  
Dilemata     Open Access  
Diogenes     Hybrid Journal   (Followers: 7)
Doctor virtualis     Open Access   (Followers: 2)
EarthSong Journal: Perspectives in Ecology, Spirituality and Education     Full-text available via subscription  
Eidos     Open Access   (Followers: 1)
Eleutheria     Open Access   (Followers: 2)
Empedocles : European Journal for the Philosophy of Communication     Hybrid Journal   (Followers: 1)
Endeavour     Hybrid Journal   (Followers: 4)
Episteme     Hybrid Journal   (Followers: 8)
Erasmus of Rotterdam Society Yearbook     Hybrid Journal   (Followers: 3)
Erkenntnis     Hybrid Journal   (Followers: 11)
Escritos     Open Access  
Essays in Philosophy     Open Access   (Followers: 1)
Estudios de Filosofía     Open Access  
Estudios de Filosofía Práctica e Historia de las Ideas     Open Access  
Ethical Perspectives     Full-text available via subscription   (Followers: 5)
Ethical Theory and Moral Practice     Hybrid Journal   (Followers: 7)
Ethics     Full-text available via subscription   (Followers: 22)
Éthique publique     Open Access  
Ethische Perspectieven     Full-text available via subscription   (Followers: 1)
Études de lettres     Open Access  
Études Ricoeuriennes / Ricoeur Studies     Open Access   (Followers: 1)
European Journal for Philosophy of Science     Partially Free   (Followers: 4)

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Journal Cover Eidos
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  This is an Open Access Journal Open Access journal
     ISSN (Print) 1692-8857 - ISSN (Online) 2011-7477
     Published by SciELO Homepage  [684 journals]
  • Trapped vortices in multiply connected domains

    • Authors: Rhodri B Nelson; Takashi Sakajo
      First page: 061402
      Abstract: This paper details a generalized method to, within some numerical tolerance, compute vortex equilibria in the presence of many obstacles. Given a conformal mapping ##IMG## [http://ej.iop.org/images/1873-7005/46/6/061402/fdr495152ieqn1.gif] {$z\left( \zeta \right)$} between a pre-image circular domain and the physical domain, stationary conditions for the point vortices and the desired Kutta conditions are constructed and then solved using a Brownian Ratchets scheme. The method is applied to a Kasper Wing (three plate) configuration and results are compared to those of a single plate. The lift experienced by the main plate is seen to be sensitive to the placement of the two additional plates but their presence can be force enhancing for certain configurations.
      Citation: Fluid Dynamics Research
      PubDate: 2014-10-03T00:00:00Z
      Issue No: Vol. 46, No. 6 (2014)
       
  • Splitting of a turbulent puff in pipe flow

    • Authors: Masaki Shimizu; Paul Manneville, Yohann Duguet Genta Kawahara
      First page: 061403
      Abstract: The transition to turbulence of the flow in a pipe of constant radius is numerically studied over a range of Reynolds numbers where turbulence begins to expand by puff splitting . We first focus on the case ##IMG## [http://ej.iop.org/images/1873-7005/46/6/061403/fdr495356ieqn1.gif] {$\operatorname{Re}=2300$} where splitting occurs as discrete events. Around this value only long-lived pseudo-equilibrium puffs can be observed in practice, as typical splitting times become very long. When ##IMG## [http://ej.iop.org/images/1873-7005/46/6/061403/fdr495356ieqn2.gif] {$\operatorname{Re}$} is further increased, the flow enters a more continuous puff splitting regime where turbulence spreads faster. Puff splitting presents itself as a two-step stochastic process. A splitting puff first emits a chaotic pseudopod made of azimuthally localized streaky structures at the downstream (leading) laminar–turbulent interface. This structure can later...
      Citation: Fluid Dynamics Research
      PubDate: 2014-10-03T00:00:00Z
      Issue No: Vol. 46, No. 6 (2014)
       
  • Theoretical prediction of a bright pattern of reflective flakes in a
           precessing sphere

    • Authors: Shigeo Kida
      First page: 061404
      Abstract: Non-trivial bright patterns of reflective flakes recently observed experimentally and numerically in a precessing sphere are reproduced theoretically by the use of a small flat-plate model of flakes with diffusion effects of Brownian motion and the asymptotic velocity field in the double limit of large Reynolds numbers and small Poincaré numbers. It is shown that what is visualized by flakes is not the local flow field but the overall contribution of the velocity gradient, induced by the conical shear layers, over the whole orbit of flakes. It is suggested that Brownian motion plays a significant role to the orientation distribution of flakes.
      Citation: Fluid Dynamics Research
      PubDate: 2014-10-03T00:00:00Z
      Issue No: Vol. 46, No. 6 (2014)
       
  • Vortical flow structure of thermoacoustic oscillations in a closed tube

    • Authors: Katsuya Ishii; Shyun Kitagawa, Masahiro Ishigaki Shizuko Adachi
      First page: 061408
      Abstract: Spontaneous thermoacoustic oscillations of a gas in a closed cylindrical tube are studied. Numerical simulations of the flow field in the tube on which a temperature gradient along the axis is imposed are performed by solving the axisymmetric compressible Navier–Stokes equations. The wall temperature of the hot part near both ends (300 K) and that of the cold part near the center (20 K) are fixed. The computations are done for various values of the length ratio ξ of the hot part to the cold part between 0.3 and 1.0, and steady oscillatory states are obtained. These states are divided into three groups according to the magnitude of the pressure amplitude. The state in each group has distinguished features of the flow field. We analyze the effect of vortices on the structure of the temperature distribution. The difference of the boundary layer thickness between the hot part and the cold part is shown to play an important role.
      Citation: Fluid Dynamics Research
      PubDate: 2014-10-03T00:00:00Z
      Issue No: Vol. 46, No. 6 (2014)
       
  • A parametrization of two-dimensional turbulence based on a maximum entropy
           production principle with a local conservation of energy

    • Authors: Pierre-Henri Chavanis
      First page: 061409
      Abstract: In the context of two-dimensional (2D) turbulence, we apply the maximum entropy production principle (MEPP) by enforcing a local conservation of energy. This leads to an equation for the vorticity distribution that conserves all the Casimirs, the energy, and that increases monotonically the mixing entropy ( H -theorem). Furthermore, the equation for the coarse-grained vorticity dissipates monotonically all the generalized enstrophies. These equations may provide a parametrization of 2D turbulence. They do not generally relax towards the maximum entropy state. The vorticity current vanishes for any steady state of the 2D Euler equation. Interestingly, the equation for the coarse-grained vorticity obtained from the MEPP turns out to coincide, after some algebraic manipulations, with the one obtained with the anticipated vorticity method. This shows a connection between these two approaches when the conservation of energy is treated locally. Furthermore, the newly derived equat...
      Citation: Fluid Dynamics Research
      PubDate: 2014-10-03T00:00:00Z
      Issue No: Vol. 46, No. 6 (2014)
       
  • On point vortex models of exotic bluff body wakes

    • Authors: Mark A Stremler; Saikat Basu
      First page: 061410
      Abstract: Exotic vortex wakes, in which three or more vortices are generated during each shedding cycle, are frequently found in the wake of an oscillating bluff body. Two common examples are P+S wakes (with 3 vortices) and 2P wakes (with 4 vortices). We consider mathematical models of these wakes consisting of N = 3 or 4 point vortices with constant strengths in an inviscid fluid that is otherwise at rest in a singly-periodic domain. By enforcing constraints on the vortex strengths and, in the case of N = 4, on the symmetry of the vortex locations, the mathematical models reduce to integrable Hamiltonian systems. We compare the point vortex trajectories with two exotic wake patterns reported in the literature. Results support the use of point vortex modeling to investigate vortex dynamics in exotic wakes and suggest the need for additional classification of experimental wake patterns.
      Citation: Fluid Dynamics Research
      PubDate: 2014-10-16T00:00:00Z
      Issue No: Vol. 46, No. 6 (2014)
       
  • Interaction between compressible fluid and sound in a flue instrument

    • Authors: Taizo Kobayashi; Takahiro Akamura, Yuki Nagao, Takuya Iwasaki, Kenʼichiro Nakano, Kinʼya Takahashi Mutsumi Aoyagi
      First page: 061411
      Abstract: In order to study the generation of (aerodynamic) sound in flue instruments, we numerically apply Howeʼs energy corollary for a two-dimensional model of a flue instrument. Howeʼs energy corollary enables us to estimate the energy transfer between the fluid flow and acoustic field. To implement it, separating the acoustic field from the fluid flow is needed. However the complete method to numerically achieve it has not been established yet. In this work, we develop an approximate method, which has been recently proposed in their experimental studies by Yoshikawa et al (2012 J. Sound Vib. 331 [http://dx.doi.org/10.1016/j.jsv.2012.01.026] 2558–77 ) and others, and we apply it to the simulation of the model instrument. We first calculate fluid flow and acoustic oscillation simultaneously by a compressible fluid solver. Next referring to the information on the acoustic oscillation obtained we set up a pressure source on an acoustic solver and reproduce ...
      Citation: Fluid Dynamics Research
      PubDate: 2014-10-16T00:00:00Z
      Issue No: Vol. 46, No. 6 (2014)
       
  • The Jones polynomial as a new invariant of topological fluid dynamics

    • Authors: Renzo L Ricca; Xin Liu
      First page: 061412
      Abstract: A new method based on the use of the Jones polynomial, a well-known topological invariant of knot theory, is introduced to tackle and quantify topological aspects of structural complexity of vortex tangles in ideal fluids. By re-writing the Jones polynomial in terms of helicity, the resulting polynomial becomes then function of knot topology and vortex circulation, providing thus a new invariant of topological fluid dynamics. Explicit computations of the Jones polynomial for some standard configurations, including the Whitehead link and the Borromean rings (whose linking numbers are zero), are presented for illustration. In the case of a homogeneous, isotropic tangle of vortex filaments with same circulation, the new Jones polynomial reduces to some simple algebraic expression, that can be easily computed by numerical methods. This shows that this technique may offer a new setting and a powerful tool to detect and compute topological complexity and to investigate relations with e...
      Citation: Fluid Dynamics Research
      PubDate: 2014-10-16T00:00:00Z
      Issue No: Vol. 46, No. 6 (2014)
       
  • Quasi-cyclic evolution of turbulence driven by a steady force in a
           periodic cube

    • Authors: Tatsuya Yasuda; Susumu Goto Genta Kawahara
      First page: 061413
      Abstract: The quasi-cyclic evolution of turbulence driven by a steady force in a periodic cube is investigated by means of large-eddy simulations with vanishing kinematic viscosity. By constraining the domain size so that only a single series of energy cascade events can take place, quasi-cyclic motions of multi-scale coherent vortices with a period of about 20 T are realized. (Here, T denotes the turnover time of the largest eddies.) The observed cycle is composed of four periods characterized by activities of the largest- and smallest-resolvable-scale eddies. Vigorous energy cascade events, which last for about 2 T , are observed between the two moments when large- and small-scale eddies are active. Even though we have examined only a special case of steady forces, such cyclic behavior of turbulence is likely to capture the essential dynamics of the regeneration cycle of multi-scale coherent structures, that is, the energy cascade in homogeneous isotropic turbulence at ...
      Citation: Fluid Dynamics Research
      PubDate: 2014-10-16T00:00:00Z
      Issue No: Vol. 46, No. 6 (2014)
       
  • Vortex particle method in parallel computations on graphical processing
           units used in study of the evolution of vortex structures

    • Authors: Henryk Kudela; Andrzej Kosior
      First page: 061414
      Abstract: Understanding the dynamics and the mutual interaction among various types of vortical motions is a key ingredient in clarifying and controlling fluid motion. In the paper several different cases related to vortex tube interactions are presented. Due to problems with very long computation times on the single processor, the vortex-in-cell (VIC) method is implemented on the multicore architecture of a graphics processing unit (GPU). Numerical results of leapfrogging of two vortex rings for inviscid and viscous fluid are presented as test cases for the new multi-GPU implementation of the VIC method. Influence of the Reynolds number on the reconnection process is shown for two examples: antiparallel vortex tubes and orthogonally offset vortex tubes. Our aim is to show the great potential of the VIC method for solutions of three-dimensional flow problems and that the VIC method is very well suited for parallel computation.
      Citation: Fluid Dynamics Research
      PubDate: 2014-10-16T00:00:00Z
      Issue No: Vol. 46, No. 6 (2014)
       
 
 
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