Bibliografie tematiche / Analogie de Reynolds

Indice

  1. Articoli di riviste
  2. Tesi
  3. Libri
  4. Capitoli di libri
  5. Atti di convegni

Letteratura scientifica selezionata sul tema "Analogie de Reynolds"

Autore: Grafiati
Pubblicato: 5 ottobre 2024
Ultima modifica: 31 luglio 2025

Cita una fonte nei formati APA, MLA, Chicago, Harvard e in molti altri stili

Scegli il tipo di fonte:

Consulta la lista di attuali articoli, libri, tesi, atti di convegni e altre fonti scientifiche attinenti al tema "Analogie de Reynolds".

Accanto a ogni fonte nell'elenco di riferimenti c'è un pulsante "Aggiungi alla bibliografia". Premilo e genereremo automaticamente la citazione bibliografica dell'opera scelta nello stile citazionale di cui hai bisogno: APA, MLA, Harvard, Chicago, Vancouver ecc.

Puoi anche scaricare il testo completo della pubblicazione scientifica nel formato .pdf e leggere online l'abstract (il sommario) dell'opera se è presente nei metadati.

Articoli di riviste sul tema "Analogie de Reynolds"

1

Ghosh, Bikramaditya, Krishna M.C., Shrikanth Rao, Emira Kozarević, and Rahul Kumar Pandey. "Predictability and herding of bourse volatility: an econophysics analogue." Investment Management and Financial Innovations 15, no. 2 (2018): 317–26. http://dx.doi.org/10.21511/imfi.15(2).2018.28.

Testo completo
Abstract (sommario):
Financial Reynolds number works as a proxy for volatility in stock markets. This piece of work helps to identify the predictability and herd behavior embedded in the financial Reynolds number (time series) series for both CNX Nifty Regular and CNX Nifty High Frequency Trading domains. Hurst exponent and fractal dimension have been used to carry out this work. Results confirm conclusive evidence of predictability and herd behavior for both the indices. However, it has been observed that CNX Nifty High Frequency Trading domain (represented by its corresponding financial Reynolds number) is more
Gli stili APA, Harvard, Vancouver, ISO e altri
2

de Roode, Stephan R., Peter G. Duynkerke, and A. Pier Siebesma. "Analogies between Mass-Flux and Reynolds-Averaged Equations." Journal of the Atmospheric Sciences 57, no. 10 (2000): 1585–98. http://dx.doi.org/10.1175/1520-0469(2000)057<1585:abmfar>2.0.co;2.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
3

Deckelman, Steven, Jennifer Graetz, and Tyler Russell. "A multiplicative analogue of the Reynolds operator and construction of invariants." Rocky Mountain Journal of Mathematics 45, no. 4 (2015): 1107–18. http://dx.doi.org/10.1216/rmj-2015-45-4-1107.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
4

Gaviglio, J. "Reynolds analogies and experimental study of heat transfer in the supersonic boundary layer." International Journal of Heat and Mass Transfer 30, no. 5 (1987): 911–26. http://dx.doi.org/10.1016/0017-9310(87)90010-x.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
5

McKeon, B. J., and J. F. Morrison. "Asymptotic scaling in turbulent pipe flow." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 365, no. 1852 (2007): 771–87. http://dx.doi.org/10.1098/rsta.2006.1945.

Testo completo
Abstract (sommario):
The streamwise velocity component in turbulent pipe flow is assessed to determine whether it exhibits asymptotic behaviour that is indicative of high Reynolds numbers. The asymptotic behaviour of both the mean velocity (in the form of the log law) and that of the second moment of the streamwise component of velocity in the outer and overlap regions is consistent with the development of spectral regions which indicate inertial scaling. It is shown that an ‘inertial sublayer’ in physical space may be considered as a spatial analogue of the inertial subrange in the velocity spectrum and such beha
Gli stili APA, Harvard, Vancouver, ISO e altri
6

Radkevich, E. V., E. A. Lukashev, and O. A. Vasil’eva. "Hydrodynamic instabilities and nonequilibrium phase transitions." Доклады Академии наук 486, no. 5 (2019): 537–42. http://dx.doi.org/10.31857/s0869-56524865537-542.

Testo completo
Abstract (sommario):
For laminar-turbulent transition model is built reconstruction of the initial stage of instability as a nonequilibrium phase transition, the mechanism of which is diffusion stratification. It is shown that the Gibbs free energy deviations from the homogeneous state (relative to the instability under consideration) is an analogue Ginzburg-Landau potentials. Numerical experiments were performed. Self-excitation of a homogeneous state by edge control condition of increasing speed. Under external influence (increase in speed at the input), there is a transition to chaos through bifurcations of per
Gli stili APA, Harvard, Vancouver, ISO e altri
7

CHILDRESS, STEPHEN, SAVERIO E. SPAGNOLIE, and TADASHI TOKIEDA. "A bug on a raft: recoil locomotion in a viscous fluid." Journal of Fluid Mechanics 669 (January 12, 2011): 527–56. http://dx.doi.org/10.1017/s002211201000515x.

Testo completo
Abstract (sommario):
The locomotion of a body through an inviscid incompressible fluid, such that the flow remains irrotational everywhere, is known to depend on inertial forces and on both the shape and the mass distribution of the body. In this paper we consider the influence of fluid viscosity on such inertial modes of locomotion. In particular we consider a free body of variable shape and study the centre-of-mass and centre-of-volume variations caused by a shifting mass distribution. We call this recoil locomotion. Numerical solutions of a finite body indicate that the mechanism is ineffective in Stokes flow b
Gli stili APA, Harvard, Vancouver, ISO e altri
8

Zhao, Shuo, Xiaoping Chen, Yuting Yang, and Dengsong Huang. "Effects of Viscosity Law on High-Temperature Supersonic Turbulent Channel Flow for Chemical Equilibrium." Processes 12, no. 2 (2024): 256. http://dx.doi.org/10.3390/pr12020256.

Testo completo
Abstract (sommario):
Direct numerical simulations of temporally evolving high-temperature supersonic turbulent channel flow for chemical equilibrium were conducted with a Mach number of 3.0, a Reynolds number of 4880, and a wall temperature of 1733.2 K to investigate the influence of the viscosity law. The mean and fluctuating viscosity for the mixture rule is higher than that for Sutherland’s law, whereas an opposite trend is observed in the mean temperature, mean pressure, and dissociation degree. The Trettel and Larsson transformed mean velocity, the Reynolds shear stress, the turbulent kinetic energy budget, a
Gli stili APA, Harvard, Vancouver, ISO e altri
9

Yim, Eunok, and Paul Billant. "Analogies and differences between the stability of an isolated pancake vortex and a columnar vortex in stratified fluid." Journal of Fluid Mechanics 796 (May 11, 2016): 732–66. http://dx.doi.org/10.1017/jfm.2016.248.

Testo completo
Abstract (sommario):
In order to understand the dynamics of pancake shaped vortices in stably stratified fluids, we perform a linear stability analysis of an axisymmetric vortex with Gaussian angular velocity in both the radial and axial directions with an aspect ratio of ${\it\alpha}$. The results are compared to those for a columnar vortex (${\it\alpha}=\infty$) in order to identify the instabilities. Centrifugal instability occurs when $\mathscr{R}&gt;c(m)$ where $\mathscr{R}=ReF_{h}^{2}$ is the buoyancy Reynolds number, $F_{h}$ the Froude number, $Re$ the Reynolds number and $c(m)$ a constant which differs for
Gli stili APA, Harvard, Vancouver, ISO e altri
10

JIMÉNEZ, JAVIER, SERGIO HOYAS, MARK P. SIMENS, and YOSHINORI MIZUNO. "Turbulent boundary layers and channels at moderate Reynolds numbers." Journal of Fluid Mechanics 657 (June 2, 2010): 335–60. http://dx.doi.org/10.1017/s0022112010001370.

Testo completo
Abstract (sommario):
The behaviour of the velocity and pressure fluctuations in the outer layers of wall-bounded turbulent flows is analysed by comparing a new simulation of the zero-pressure-gradient boundary layer with older simulations of channels. The 99 % boundary-layer thickness is used as a reasonable analogue of the channel half-width, but the two flows are found to be too different for the analogy to be complete. In agreement with previous results, it is found that the fluctuations of the transverse velocities and of the pressure are stronger in the boundary layer, and this is traced to the pressure fluct
Gli stili APA, Harvard, Vancouver, ISO e altri
Più fonti

Tesi sul tema "Analogie de Reynolds"

1

Ben, Nasr Ouissem. "Numerical simulations of supersonic turbulent wall-bounded flows." Phd thesis, INSA de Rouen, 2012. http://tel.archives-ouvertes.fr/tel-01059805.

Testo completo
Abstract (sommario):
This work deals with spatially-evolving supersonic turbulent boundary layers over adiabatic and cold walls at M∞ = 2 and up to Re0 ≈ 2600 using 3 different SGS models. The numerical methodology is based on high-order split-centered scheme to discretize the convective fluxes of the Navier-Stokes equations . For the adiabatic case, it is demonstrated that all SGS models require a comparable minimum grid-refinement in order to capture accurately the near-wall-turbulence. Overall, the models exhibit correct behavior when predictiong the dynamic properties, but show different performances for the t
Gli stili APA, Harvard, Vancouver, ISO e altri
2

Celep, Muhittin. "Τransitiοn dans les cοuches limites supersοniques : simulatiοns numériques directes et cοntrôle par stries". Electronic Thesis or Diss., Normandie, 2024. http://www.theses.fr/2024NORMIR15.

Testo completo
Abstract (sommario):
Dans les écoulements à haute vitesse, une traînée visqueuse élevée et des charges thermiques importantes sont des conséquences inhérentes sur les corps aérodynamiques. Ces effets augmentent de manière significative pendant la phase de transition lorsque la couche limite devient turbulente. Afin de réduire les risques de dommages mécaniques et de défaillances liées à la fatigue, des systèmes de protection thermique sont intégrés aux véhicules, ajoutant de la complexité aux aspects techniques et économiques de la conception. La solution réside dans l’acquisition d’une compréhension approfondie d
Gli stili APA, Harvard, Vancouver, ISO e altri
3

Reynolds, York [Verfasser]. "Singen und Kämpfen : die Kunst des klassischen Gesangs und die Kunst des waffenlosen Vollkontakt-Nahkampfstils Wing Tsun Kuen im Vergleich ihrer Körpertechniken im Hinblick auf ihre Analogien und einer gemeinsamen holistisch-generischen Tiefenstruktur / von York Reynolds." 2007. http://d-nb.info/986408700/34.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri

Libri sul tema "Analogie de Reynolds"

1

R, Lang Peter, and Lombargo Frank S, eds. Atmospheric turbulence, meteorological modeling, and aerodynamics. Nova Science Publishers, 2009.

Cerca il testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri

Capitoli di libri sul tema "Analogie de Reynolds"

1

Avdeev, Alexander A. "Reynolds Analogy." In Mathematical Engineering. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29288-5_11.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
2

Simonson, J. R. "Forced convection: Reynolds analogy and dimensional analysis." In Engineering Heat Transfer. Macmillan Education UK, 1988. http://dx.doi.org/10.1007/978-1-349-19351-6_7.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
3

Choi, K. S. "Breakdown of the Reynolds Analogy over Drag-Reducing Riblets Surface." In Advances in Turbulence IV. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1689-3_25.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
4

Kelly, G. M., J. M. Simmons, and A. Paull. "Skin Friction Measurements and Reynolds Analogy in a Hypersonic Boundary Layer." In Shock Waves @ Marseille I. Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-78829-1_48.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
5

Saha, Sujoy Kumar, Hrishiraj Ranjan, Madhu Sruthi Emani, and Anand Kumar Bharti. "Numerical Simulation of Integral Roughness, Laminar Flow in Tubes with Roughness and Reynolds Analogy for Heat and Momentum Transfer." In Insert Devices and Integral Roughness in Heat Transfer Enhancement. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20776-2_5.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
6

Burmeister, L. C. "Reynolds analogy for mass transfer." In Experiments in Heat Transfer and Thermodynamics. Cambridge University Press, 1994. http://dx.doi.org/10.1017/cbo9780511608346.011.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
7

Reynolds, Philip L. "Conjugal and Nuptial Symbolism in Medieval Christian Thought." In The Symbolism of Marriage in Early Christianity and the Latin Middle Ages. Amsterdam University Press, 2019. http://dx.doi.org/10.5117/9789462985919_ch02.

Testo completo
Abstract (sommario):
Medieval scholars, clerics, and religious perceived important resemblances between marriage and the relationship between God or Christ and the Church or its individual members. They construed the divine–human relationship as a mystical marriage, but they also used such analogies to explain the laws and morality of human marriage and as the basis of the doctrine of marriage as one of the sacraments. This chapter explores the diversity of such comparisons. Having noted the limitations of symbolism as our overarching category, Reynolds proposes that the implicit common denominator within medieval
Gli stili APA, Harvard, Vancouver, ISO e altri
8

Meira, Lucas de Souza, and Francisco José de Souza. "NUMERICAL INVESTIGATION OF FAR-FIELD NOISE IN TRANSONIC JET NOZZLES." In 32º Simpósio da Pós-Graduação em Engenharia Mecânica, 32nd ed. Even3 Publicações, 2024. https://doi.org/10.29327/5441125.32-64.

Testo completo
Abstract (sommario):
The present work aims to present a practical and feasible methodology for noise prediction in far-field signatures of jet nozzles by means of Computational Fluid Dynamics (CFD) and a Generalized Acoustic Analogy (GAA) technique. We present and validate an in-house code, FastJetNoise, using experiments conducted at Southampton's Doak Laboratory. In order to develop the present analysis, we used a commercial Reynolds-Averaged Navier-Stokes equations (RANS) solver to provide the flow turbulent characteristics. Subsequently, the flow properties were arranged in a structured mesh, computed by the a
Gli stili APA, Harvard, Vancouver, ISO e altri
9

Robinett, Richard W. "Classical mechanics: Point particles and continuum systems." In Dimensional Analysis Across the Landscape of Physics. Oxford University PressOxford, 2024. https://doi.org/10.1093/oso/9780192867551.003.0003.

Testo completo
Abstract (sommario):
Abstract We begin our systematic exploration of the common core set of topics in the undergraduate mechanics curriculum with detailed examinations of the harmonic oscillator and rigid pendulum (and rotor) systems to see how they’re constrained by dimensional analysis. We discuss classical Newtonian gravity and its similarities to Coulomb’s law, using the power of analogy to develop new tools to solve gravitational physics problems. We discuss the dimensional constraints on the static and dynamical behaviour of continuum systems, both solids, fluids (liquids and gases), and even granular materi
Gli stili APA, Harvard, Vancouver, ISO e altri
10

Rout, Siddharth. "Early Advancements in Turbulence-Generated Noise Modelling: A Review." In Boundary Layer Flows - Advances in Modelling and Simulation [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.1002433.

Testo completo
Abstract (sommario):
Turbulent flows generate a broadband of acoustic noise, which can be extremely important. So, there is need for modelling the generation and propagation of acoustic energy in fluid flows, especially turbulent. This chapter reviews the research work conducted to identify and quantify the noise field generated in turbulent flows. The story starts with the journey of experimental identification and measurement of noise generated from vortices. Various analytical models there were developed, soon after, the popularity of turbulence generated is discussed. The base path-breaking research on quantif
Gli stili APA, Harvard, Vancouver, ISO e altri

Atti di convegni sul tema "Analogie de Reynolds"

1

Jones, Anya, Joachim Hodara, Kenneth Granlund, Michael Ol, Karen Mulleners, and Marilyn Smith. "Blade Sections in Streamwise Oscillations into Reverse Flow." In Vertical Flight Society 71st Annual Forum & Technology Display. The Vertical Flight Society, 2015. http://dx.doi.org/10.4050/f-0071-2015-10273.

Testo completo
Abstract (sommario):
A low-Reynolds number rectilinear analog of the retreating blade problem is considered by computationally and experimentally studying a NACA0012 blade in spanwise oscillation in a free stream. Three-dimensional hybrid RANS-LES simulations with spanwise periodic boundary conditions and experimental flow visualization support the description of experimental direct force measurements for a wide range reduced frequencies and advance ratios, including fully reversed flow conditions. A fixed incidence of 6 degrees is taken as a nominally attached-flow case, and agrees reasonably well with Isaacs' th
Gli stili APA, Harvard, Vancouver, ISO e altri
2

Jiang, Lei-Yong, and Ian Campbell. "Reynolds Analog in Combustor Modeling." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-27017.

Testo completo
Abstract (sommario):
Accurate temperature prediction is vital for the development of advanced combustion systems. The Reynolds analogy concept has been almost exclusively used in current turbulent reacting flow RANS simulations. In this paper, this hypothesis applied to a diffusion flame model combustor is discussed and assessed. Some of the numerical results obtained from a flamelet combustion model with the turbulence Prandtl/Schmidt number from 0.25 to 0.85 are presented, and compared with a benchmark experimental database. It is found that the turbulence Prandtl/Schmidt number has significant effect on the pre
Gli stili APA, Harvard, Vancouver, ISO e altri
3

Abramov, Alexander, and Alexander Butkovskii. "Extended Reynolds analogy for the rarefied Rayleigh problem: Similarity parameters." In 31ST INTERNATIONAL SYMPOSIUM ON RAREFIED GAS DYNAMICS: RGD31. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5119671.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
4

Forooghi, Pourya, Franco Magagnato, and Bettina Frohnapfel. "REYNOLDS ANALOGY IN TURBULENT FLOWS OVER ROUGH WALLS - A DNS INVESTIGATION." In International Heat Transfer Conference 16. Begellhouse, 2018. http://dx.doi.org/10.1615/ihtc16.cov.021429.

Testo completo
Gli stili APA, Harvard, Vancouver, ISO e altri
5

Polkowski, Janusz W. "An Influence of the Thickness of a Laminar Sublayer and Mixing Length Model on the Skin Friction and Heat Transfer in the Boundary Layer Flow." In ASME 1987 International Gas Turbine Conference and Exhibition. American Society of Mechanical Engineers, 1987. http://dx.doi.org/10.1115/87-gt-68.

Testo completo
Abstract (sommario):
An influence of the thickness of the laminar sub-layer and mixing length profile on skin friction and heat transfer in the incompressible boundary layer is studied. Solution of the momentum and energy equations for different algebraic expressions for the mixing length is presented. Relationships between the specific forms of Reynolds analogy and boundary conditions (temperature or heat flux) as well as the limitations of Reynolds analogy are discussed.
Gli stili APA, Harvard, Vancouver, ISO e altri
6

De Maio, M. "DNS of momentum and heat transfer inside rough pipes." In Aerospace Science and Engineering. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902677-7.

Testo completo
Abstract (sommario):
Abstract. We carry out direct numerical simulation (DNS) of turbulent flow in pipes with a grit-blasted surface, to investigate both on momentum and heat transfer. A wide range of Reynolds numbers are considered, while maintaining a constant molecular Prandtl number of 0.7. The large relative roughness influences both the velocity and the temperature fields, indicating that the Reynolds analogy does not hold at high Reynolds bulk number.
Gli stili APA, Harvard, Vancouver, ISO e altri
7

Som, Abhijit. "Generalized Reynolds Analogy: An Engineering Prospective of Thermo-Fluid Physics for Heat Exchanger Design." In ASME 2021 Power Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/power2021-65820.

Testo completo
Abstract (sommario):
Abstract In practical interest of Reynolds analogy for power and process industries, in a unified system approach an engineering prospective of thermo-fluid physics has been proposed by developing a theory of basic heat exchanger design and analysis. Needless to mention of excellent books on heat exchangers, this paper focuses on the novelty of heat exchanger, which in author’s view depends upon the possibility of energy exchange between two fluid streams at different temperatures. Since operation cannot be random, the principal act of design is to engineer a product such that it operates in s
Gli stili APA, Harvard, Vancouver, ISO e altri
8

Khalatov, Artem, and Vitaliy Onishchenko. "Heat Transfer and Surface Friction Downstream of a Dual Array of Dimples of a Different Shape." In ASME Turbo Expo 2008: Power for Land, Sea, and Air. ASMEDC, 2008. http://dx.doi.org/10.1115/gt2008-50022.

Testo completo
Abstract (sommario):
The wide experimental program was carried out in the Institute for Engineering Thermophysics (Kiev, Ukraine) to study heat transfer and surface friction downstream of the dual array of dimples. The test section is the rectangular channel 34 mm height, 290 mm wide and 125 mm long. The unheated dual array of dimples was placed on the channel floor (bottom) wall upstream of the electrically heated test section. Inserts with dimples of spherical, cylindrical and square shape were tested at their relative depth h/D of 0.20 and 0.30. Projected (surface) diameter of dimples is 25.0 mm; the second row
Gli stili APA, Harvard, Vancouver, ISO e altri
9

Guerras Colo´n, Israel, Sandra Velarde-Sua´rez, Rafael Ballesteros-Tajadura, Jesu´s Manuel Ferna´ndez Oro, and Jose´ Gonza´lez. "Noise Prediction in HVAC Squirrel-Cage Fans by Unsteady Reynolds Navier-Stokes Computation." In ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajk2011-23022.

Testo completo
Abstract (sommario):
Small centrifugal and axial fans are used in automobile applications, as it is the case for HVAC systems for public transport. Typically, these fans are used to work at high speed (over 4000 rpm) and variable operation conditions, even at extreme off-design points. Flow instabilities, low efficiency and high levels of noise and vibrations appear in these machines due to these working characteristics and the need of low fabrication costs. However, lower noise levels are required today to improve the passengers comfort. Aiming to solve these problems, it is interesting to develop a computer appl
Gli stili APA, Harvard, Vancouver, ISO e altri
10

Velarde-Suárez, Sandra, Rafael Ballesteros-Tajadura, Jesús Manuel Fernández Oro, and José González. "Noise Prediction in HVAC Squirrel-Cage Fans by Unsteady Reynolds Navier-Stokes Computation." In ASME 2012 Fluids Engineering Division Summer Meeting collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/fedsm2012-72502.

Testo completo
Abstract (sommario):
Small centrifugal and axial fans are used in automobile applications, as it is the case for HVAC systems for public transport. Typically, these fans are used to work at high speed (over 4000 rpm) and variable operation conditions, even at extreme off-design points. Flow instabilities, low efficiency and high levels of noise and vibrations appear in these machines due to these working characteristics and the need of low fabrication costs. However, lower noise levels are required today to improve the passengers comfort. Aiming to solve these problems, it is interesting to develop a computer appl
Gli stili APA, Harvard, Vancouver, ISO e altri
Ti possono interessare anche gli elenchi estesi di opere sul tema "Analogie de Reynolds":
Articoli di riviste
Offriamo sconti su tutti i piani premium per gli autori le cui opere sono incluse in raccolte letterarie tematiche. Contattaci per ottenere un codice promozionale unico!

Vai alla bibliografia