Relevant bibliographies by topics / Cascade of turbulent cells

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Cascade of turbulent cells'

Author: Grafiati
Published: 28 June 2021
Last updated: 29 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Cascade of turbulent cells.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Cascade of turbulent cells"

1

Medina, Socorro, Ellen Sukovich, and Robert A. Houze. "Vertical Structures of Precipitation in Cyclones Crossing the Oregon Cascades." Monthly Weather Review 135, no. 10 (2007): 3565–86. http://dx.doi.org/10.1175/mwr3470.1.

Full text
Abstract:
Abstract The vertical structure of radar echoes in extratropical cyclones moving over the Oregon Cascade Mountains from the Pacific Ocean indicates characteristic precipitation processes in three basic storm sectors. In the early sector of a cyclone, a leading edge echo (LEE) appears aloft and descends toward the surface. Updraft cells inferred from the vertically pointing Doppler radial velocity are often absent or weak. In the middle sector the radar echo consists of a thick, vertically continuous layer extending from the mountainside up to a height of approximately 5–6 km that lasts for sev
APA, Harvard, Vancouver, ISO, and other styles
2

Kovalova, A., L. Hudcova, and R. Roka. "Optical Ray Transfer Matrix Model of the Turbulent Cells Cascade." Radioengineering 31, no. 4 (2022): 520–26. http://dx.doi.org/10.13164/re.2022.0520.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Budiarso, Ahmad Indra Siswantara, Steven Darmawan та Harto Tanujaya. "Inverse-Turbulent Prandtl Number Effects on Reynolds Numbers of RNG k-ε Turbulence Model on Cylindrical-Curved Pipe". Applied Mechanics and Materials 758 (квітень 2015): 35–44. http://dx.doi.org/10.4028/www.scientific.net/amm.758.35.

Full text
Abstract:
Inverse-turbulent Prandtl number (α) is one of important parameters on RNG k-ε turbulence model which represent the cascade energy of the flow, which occur in cylindrical curved-pipe. Although many research has been done, turbulent flow in curved pipe is still a challanging problem. The range of α of the basic RNG k-ε turbulence model described by Yakhot and Orszag (1986) with range 1-1.3929 has to be more specific on Reynolds number (Re) and geometry. However, since the viscosity is sensitive to velocity and temperature, the reference of α is needed on specific range of Reynolds number. This
APA, Harvard, Vancouver, ISO, and other styles
4

Houze, Robert A., and Socorro Medina. "Turbulence as a Mechanism for Orographic Precipitation Enhancement." Journal of the Atmospheric Sciences 62, no. 10 (2005): 3599–623. http://dx.doi.org/10.1175/jas3555.1.

Full text
Abstract:
Abstract This study examines the dynamical and microphysical mechanisms that enhance precipitation during the passage of winter midlatitude systems over mountain ranges. The study uses data obtained over the Oregon Cascade Mountains during the Improvement of Microphysical Parameterization through Observational Verification Experiment 2 (IMPROVE-2; November–December 2001) and over the Alps in the Mesoscale Alpine Program (MAP; September–November 1999). Polarimetric scanning and vertically pointing S-band Doppler radar data suggest that turbulence contributed to the orographic enhancement of the
APA, Harvard, Vancouver, ISO, and other styles
5

Petukhov, E. P., Y. B. Galerkin, and A. F. Rekstin. "A Study of Testing Procedures of Vaned Diffusers of a Centrifugal Compressor Stage in a Virtual Wind Tunnel." Proceedings of Higher Educational Institutions. Маchine Building, no. 8 (713) (August 2019): 51–64. http://dx.doi.org/10.18698/0536-1044-2019-8-51-64.

Full text
Abstract:
A mathematical model of a vaned diffuser of a centrifugal compressor stage can be constructed based on the results of mass CFD-calculations, similar to that of vaneless diffusors. The methods for calculating the annular cascade and the straight cascade differ due to the existence of vaneless diffusor sections in front of the cascade and behind it. The rational dimensions of these sections are determined. The calculations of two-dimensional cascades without restricting walls appear to be irrational. The calculation is effective for a sector with one vane channel, a moderate number of cells, and
APA, Harvard, Vancouver, ISO, and other styles
6

Hwang, C. J., and J. L. Liu. "Inviscid and Viscous Solutions for Airfoil/Cascade Flows Using a Locally Implicit Algorithm on Adaptive Meshes." Journal of Turbomachinery 113, no. 4 (1991): 553–60. http://dx.doi.org/10.1115/1.2929114.

Full text
Abstract:
A numerical solution procedure, which includes a locally implicit finite volume scheme and an adaptive mesh generation technique, has been developed to study airfoil and cascade flows. The Euler/Navier–Stokes, continuity, and energy equations, in conjunction with Baldwin-Lomax model for turbulent flow, are solved in the Cartesian coordinate system. To simulate physical phenomena efficiently and correctly, a mixed type of mesh, with unstructured triangular cells for the inviscid region and structured quadrilateral cells for the viscous, boundary layer, and wake regions, is introduced in this wo
APA, Harvard, Vancouver, ISO, and other styles
7

Bernstein, Joel M., Janet Gorfien, and Bernice Noble. "Role of Allergy in Nasal Polyposis: A Review." Otolaryngology–Head and Neck Surgery 113, no. 6 (1995): 724–32. http://dx.doi.org/10.1016/s0194-59989570012-9.

Full text
Abstract:
We propose a multivariate theory for the pathogenesis of nasal polyps. Turbulent flow of air in the lateral wall of the nose or viral-bacterial-host interactions produce an inflammatory change in the mucosa of the lateral wall of the nose. Ulceration and prolapse of the submucosa with reepithelialization and new gland formation may then follow. The structural cells of the nasal polyp, including epithelial cells and fibroblasts, have the ability to produce messenger RNA for granulocyte-monocyte colony-stimulating factor and other cytokines. Stimulation of such an effector capability by structur
APA, Harvard, Vancouver, ISO, and other styles
8

Cui, Can, and Henrik N. Latter. "The saturation of the VSI in protoplanetary discs via parametric instability." Monthly Notices of the Royal Astronomical Society 512, no. 2 (2022): 1639–47. http://dx.doi.org/10.1093/mnras/stac279.

Full text
Abstract:
ABSTRACT The vertical shear instability (VSI) is a robust and potentially important phenomenon in irradiated protoplanetary discs (PPDs), yet the mechanism by which it saturates remains poorly understood. Global simulations suggest that the non-linear evolution of the VSI is dominated by radially propagating inertial wavetrains (called ‘body modes’), but these are known to be susceptible to a parametric instability. In this paper, we propose that the global VSI saturates via this secondary instability, which initiates a redistribution of energy from the large scales to smaller scale inertial w
APA, Harvard, Vancouver, ISO, and other styles
9

Day, Steven W., and James C. McDaniel. "PIV Measurements of Flow in a Centrifugal Blood Pump: Steady Flow." Journal of Biomechanical Engineering 127, no. 2 (2004): 244–53. http://dx.doi.org/10.1115/1.1865189.

Full text
Abstract:
Magnetically suspended left ventricular assist devices have only one moving part, the impeller. The impeller has absolutely no contact with any of the fixed parts, thus greatly reducing the regions of stagnant or high shear stress that surround a mechanical or fluid bearing. Measurements of the mean flow patterns as well as viscous and turbulent (Reynolds) stresses were made in a shaft-driven prototype of a magnetically suspended centrifugal blood pump at several constant flow rates (3–9L∕min) using particle image velocimetry (PIV). The chosen range of flow rates is representative of the range
APA, Harvard, Vancouver, ISO, and other styles
10

Yang, Yan-Tao, and Jie-Zhi Wu. "Channel turbulence with spanwise rotation studied using helical wave decomposition." Journal of Fluid Mechanics 692 (December 16, 2011): 137–52. http://dx.doi.org/10.1017/jfm.2011.500.

Full text
Abstract:
AbstractTurbulent channel flow with spanwise rotation is studied by direct numerical simulation (DNS) and the so-called helical wave decomposition (HWD). For a wall-bounded channel domain, HWD decomposes the flow fields into helical modes with different scales and opposite polarities, which allows us to investigate the energy distribution and nonlinear transfer among various scales. Our numerical results reveal that for slow rotation, the fluctuating energy concentrates into large-scale modes. The flow visualizations show that the fine vortices at the unstable side of the channel form long col
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Cascade of turbulent cells"

1

Kovaľová, Alžbeta. "Kvantifikace turbulence pomocí ekvivalentního teplotního gradientu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442412.

Full text
Abstract:
The diploma thesis is focused on the optical beam propagating in the atmosphere in a wireless communication optical link. The first part of the work explains the atmospheric transmission media with turbulence and its effects on reliability of the optical system. The second part introduces methods for turbulence determination based on a statistical approach to turbulence quantification are introduced. In the third part, method of equivalent temperature gradient is described with the advantage of immediate turbulence evaluation. The output of this thesis is the model of turbulent environment for
APA, Harvard, Vancouver, ISO, and other styles
2

Er, Sarp. "Structure interne, transfert turbulent et propriétés de cascade de l'interface turbulent/non-turbulent d'un jet turbulent." Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILN048.

Full text
Abstract:
L'interface turbulent/non-turbulent (TNTI) est une couche très fine entre les régions turbulentes et non turbulentes de l'écoulement. Cette étude vise à mieux comprendre le bilan d'énergie cinétique au voisinage de l'interface turbulent/non-turbulent. L'équation de Kármán-Howarth-Monin-Hill (KHMH) est utilisée pour caractériser le bilan énergétique cinétique local, y compris les transferts d'énergie dans l'espace et entre les échelles. L'analyse est effectuée à l'aide de données obtenues par simulation numérique directe (DNS) finement résolue d'un jet plan turbulent se développant avec le temp
APA, Harvard, Vancouver, ISO, and other styles
3

Alves, Portela Felipe. "Turbulence cascade in an inhomogeneous turbulent flow." Thesis, Imperial College London, 2017. http://hdl.handle.net/10044/1/63233.

Full text
Abstract:
The inhomogeneous, anisotropic turbulence downstream of a square prism is investigated by means of direct numerical simulations (DNS) and two-point statistics. As noted by Moffatt (2002) “it now seems that the intense preoccupation [...] with the problem of homogeneous isotropic turbulence was perhaps misguided” acknowledging there is now a revived interest in studying inhomogeneous turbulence. The full description of the turbulence cascade requires a two-point analysis which re- volves around the recently derived Kármán-Howarth-Monin-Hill equation (KHMH). This equation is the inhomogeneous/
APA, Harvard, Vancouver, ISO, and other styles
4

Cleve, Jochen. "Data-driven theoretical modelling of the turbulent energy cascade." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2004. http://nbn-resolving.de/urn:nbn:de:swb:14-1103125565484-63361.

Full text
Abstract:
Durch eine Modellierung der Energiekaskade gewinnt man wertvolle Einsichten in die Dynamik turbulenter Strömungen. In dieser Arbeit werden multiplikative Kaskadenprozesse untersucht und mit verschiedenen experimentellen Zeitreihen der Energiedissipation verglichen. Zur Berechnung der Energiedissipation ist es unvermeidlich auf eine Hilfskonstruktion zurückzugreifen, die die nicht gemessenen Komponenten des Geschwindigkeitsfeldes ersetzt. Der Schwerpunkt des Vergleichs zwischen Modell und Experiment liegt auf Zweipunktkorrelationen, weil andere Observablen, wie z. B. integrale Momente, durch di
APA, Harvard, Vancouver, ISO, and other styles
5

Micklow, Gerald J. "Turbomachinery cascade and wake calculation for two-dimensional compressible laminar and turbulent flow." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54244.

Full text
Abstract:
A method is presented for the efficient analytical prediction of the two dimensional laminar or turbulent compressor or turbine cascade blade-to-blade flow field and wake. The scheme utilizes a viscous-inviscid interaction routine combining a two-dimensional full potential cascade flow solver with a two-dimensional compressible boundary layer analysis. The boundary layer analysis can compute in the direct mode with pressure gradient specified or in the inverse mode with "boundary layer mass flux" specified. When calculating with the inverse mode, flow separation can be handled easily. Turbulen
APA, Harvard, Vancouver, ISO, and other styles
6

Kishi, Tatsuro. "Scaling laws for turbulent relative dispersion in two-dimensional energy inverse-cascade turbulence." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/263445.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Wakefield, Bryce Edwin. "Hotwire measurements of the turbulent flow into a cascade of controlled-diffusion compressor blades." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1993. http://handle.dtic.mil/100.2/ADA277297.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Tang, Genglin. "Measurements of the Tip-gap Turbulent Flow Structure in a Low-speed Compressor Cascade." Diss., Virginia Tech, 2003. http://hdl.handle.net/10919/11178.

Full text
Abstract:
This dissertation presents results from a thorough study of the tip-gap turbulent flow structure in a low-speed linear compressor cascade wind tunnel at Virginia Tech that includes a moving belt system to simulate the relative motion between the tip and the casing. The endwall pressure measurements and the surface oil flow visualizations were made on a stationary endwall to obtain the flow features and to determine the measurement profiles of interest. A custom-made miniature 3-orthogonal-velocity-component fiber-optic laser-Doppler velocimetry (LDV) system was used to measure all three compon
APA, Harvard, Vancouver, ISO, and other styles
9

Lapeyre, Guillaume. "Topologie du mélange dans un fluide turbulent géophysique." Paris 6, 2000. https://hal.archives-ouvertes.fr/tel-01475960.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Togni, Riccardo. "A numerical study of turbulent Rayleigh-Bénard convection." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/6280/.

Full text
Abstract:
Il flusso di Rayleigh-Bénard, costituito da un fluido racchiuso fra due pareti a diversa temperatura, rappresenta il paradigma della convezione termica. In natura e nelle applicazioni industriali, il moto convettivo avviene principalmente in regime turbolento, rivelando un fenomeno estremamente complesso. L'obiettivo principale di questo elaborato di tesi consiste nell'isolare e descrivere gli aspetti salienti di un flusso turbolento di Rayleigh-Bénard. L'analisi è applicata a dati ottenuti da tre simulazioni numeriche dirette effettuate allo stesso numero di Rayleigh (Ra=10^5) e a numeri di P
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Cascade of turbulent cells"

1

A, Shibukawa, Yamaguchi M, and United States. National Aeronautics and Space Administration., eds. Monolithic cascade-type solar cells. National Aeronautics and Space Administration, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

A, Shibukawa, Yamaguchi M, and United States. National Aeronautics and Space Administration., eds. Monolithic cascade-type solar cells. National Aeronautics and Space Administration, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

A, Shibukawa, Yamaguchi M, and United States. National Aeronautics and Space Administration., eds. Monolithic cascade-type solar cells. National Aeronautics and Space Administration, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

K, Swartz Clifford, Hart Russell E, and United States. National Aeronautics and Space Administration., eds. Radiation performance of AlGaAs and InGaAs concentrator cells and expected performance of cascade structure. National Aeronautics and Space Administration, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Le, Thuyanh. Regulation of the MAP kinase cascade by ACTH in Y1 adrenal cells. National Library of Canada, 1999.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Center, Lewis Research, ed. Modelling of multijunction cascade photovoltaics for space applications. NASA Lewis Research Center, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Ryan, Martyn J. The effect of hydrodynamic stress on plant cell cultures in turbulent jet flows. University College Dublin, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Blakeslee, E. Tunnel Diode Interconnect Junctions for Cascade Solar Cells. Amer Solar Energy Society, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Karagiannis, George S., and Panagiota S. Filippou, eds. Revisiting the Metastatic Cascade: Putting Myeloid Cells Into Context. Frontiers Media SA, 2021. http://dx.doi.org/10.3389/978-2-88966-467-2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Modelling of multijunction cascade photovoltaics for space applications. NASA Lewis Research Center, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Cascade of turbulent cells"

1

Jiménez, Javier, José I. Cardesa, and Adrián Lozano-Durán. "The Turbulence Cascade in Physical Space." In Turbulent Cascades II. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-12547-9_6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Fuchs, André, Nico Reinke, Daniel Nickelsen, and Joachim Peinke. "A Rigorous Entropy Law for the Turbulent Cascade." In Turbulent Cascades II. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-12547-9_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Sivashinsky, G. I. "Cascade Model for Turbulent Flame Propagation." In Dissipative Structures in Transport Processes and Combustion. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-84230-6_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Brandenburg, Axel. "The Inverse Cascade in Turbulent Dynamos." In Dynamo and Dynamics, a Mathematical Challenge. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0788-7_15.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Goto, Susumu. "Turbulent energy cascade caused by vortex stretching." In Springer Proceedings in Physics. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03085-7_65.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Melander, M. V., and F. Hussain. "Reconnection of Two Antiparallel Vortex Tubes: A New Cascade Mechanism." In Turbulent Shear Flows 7. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76087-7_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Campagne, Antoine, Roumaissa Hassaini, Ivan Redor, Joel Sommeria, and Nicolas Mordant. "The Energy Cascade of Surface Wave Turbulence: Toward Identifying the Active Wave Coupling." In Turbulent Cascades II. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-12547-9_25.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Gogichaishvili, D., G. Mamatsashvili, G. Chagelishvili, and W. Horton. "Nonlinear Transverse Cascade—A Key Factor of Sustenance of Subcritical Turbulence in Shear Flows." In Turbulent Cascades II. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-12547-9_12.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Cantarella, Laura, Fabrizia Pasquarelli, Agata Spera, Ludmila Martínková, and Maria Cantarella. "Key-Study on the Kinetic Aspects of theIn SituNHase/AMase Cascade System ofM. imperialeResting Cells for Nitrile Bioconversion." In Cascade Biocatalysis. Wiley-VCH Verlag GmbH & Co. KGaA, 2014. http://dx.doi.org/10.1002/9783527682492.ch13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Bruno, Roberto, and Vincenzo Carbone. "Solar Wind Heating by the Turbulent Energy Cascade." In Turbulence in the Solar Wind. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-43440-7_8.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Cascade of turbulent cells"

1

Tınaztepe, H. Tug˘rul, Ahmet S¸ U¨c¸er, and I˙ Sinan Akamandor. "Performance Evaluation of an Internal Flow Navier-Stokes Solver for Compressible Viscous Flow Simulations." In ASME Turbo Expo 2002: Power for Land, Sea, and Air. ASMEDC, 2002. http://dx.doi.org/10.1115/gt2002-30681.

Full text
Abstract:
A three-dimensional compressible full Navier-Stokes solver is developed for the analysis of the flow field inside turbomachinary cascades. The solver uses an explicit second order accurate (cell-vertex) finite volume Lax-Wendroff scheme over hexahedral cells. The viscous and heat conduction terms are discretized in conservative form at the cell center. Second and fourth order numerical smoothing terms are added with local scaling factors. Eddy viscosity is calculated by the Baldwin-Lomax model and is adapted to the pointered cell based algorithm. Turbulent viscosity is blended by inverse dista
APA, Harvard, Vancouver, ISO, and other styles
2

Min, Byung-Young, Jongwook Joo, Jomar Mendoza, Jin Lee, Guoping Xia, and Gorazd Medic. "Large-Eddy Simulation of Corner Separation in a Compressor Cascade." In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-77144.

Full text
Abstract:
In this paper, wall-resolved LES computations for a compressor cascade from Ecole Centrale de Lyon [1] are presented. A computational grid containing about 600 million computational cells was used in these simulations. This grid resolves the details of tripping strips used in the experiments, located near the leading edge of the blade on both suction and pressure sides. Endwall turbulent boundary layer at cascade inlet was measured to be at a momentum thickness based Reynolds number of about 7000 to 8000, with quite a bit of variation in the pitchwise direction. In order to avoid the cost of s
APA, Harvard, Vancouver, ISO, and other styles
3

Bertolini, Ettore, Paul Pieringer, and Wolfgang Sanz. "Large Eddy Simulation of a Transonic Linear Cascade With Synthetic Inlet Turbulence." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-14461.

Full text
Abstract:
Abstract The aim of this work is to predict the boundary layer transition and the heat transfer on a highly loaded transonic turbine cascade using Large Eddy Simulations (LESs) with prescribed inlet synthetic turbulence. The numerical simulations were performed for the flow in a linear turbine cascade tested at the von Karman Institute for Fluid Dynamic (MUR test case). For the numerical case, two operating conditions with two different levels of free-stream turbulence intensity are evaluated. For the lower turbulence level case (Tu = 0.8%, MUR132) a laminar inflow is used for the LES simulati
APA, Harvard, Vancouver, ISO, and other styles
4

Medic, Gorazd, and Om Sharma. "Large-Eddy Simulation of Flow in a Low-Pressure Turbine Cascade." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-68878.

Full text
Abstract:
Flow over three low-pressure turbine airfoils presented in [1] is analyzed for a range of Reynolds numbers (30,000 to 150,000) by means of large-eddy simulation. Baseline computational grid for these 2D linear cascade configurations consisted of 35 millions cells, and additional finer grids of 70 millions cells were used for grid sensitivity studies. For these low Reynolds number flows, this represents a quasi-DNS resolution which minimizes the role of the subgrid-scale model — however, WALE subgrid-scale model [7] was still employed. The configurations were analyzed for low free-stream turbul
APA, Harvard, Vancouver, ISO, and other styles
5

Pasinato, Hugo D., Zan Liu, Ramendra P. Roy, W. Jeffrey Howe, and Kyle D. Squires. "Prediction and Measurement of the Flow and Heat Transfer Along the Endwall and Within an Inlet Vane Passage." In ASME Turbo Expo 2002: Power for Land, Sea, and Air. ASMEDC, 2002. http://dx.doi.org/10.1115/gt2002-30189.

Full text
Abstract:
Numerical simulations and laboratory measurements are performed to study the flow field and heat transfer in a linear cascade of turbine vanes. The vanes are scaled-up versions of a turbine engine inlet vane but simplified in that they are untwisted and follow the mid-span airfoil shape of the engine vane. The hub endwall is axially profiled while the tip endwall is flat. The hub endwall comprises the focus of the heat transfer investigation. Configurations are considered with and without air injection through three discrete angled (25 degrees to the main flow direction) slots upstream of each
APA, Harvard, Vancouver, ISO, and other styles
6

Hwang, C. J., and J. L. Liu. "Inviscid and Viscous Solutions for Airfoil/Cascade Flows Using a Locally Implicit Algorithm on Adaptive Meshes." In ASME 1990 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1990. http://dx.doi.org/10.1115/90-gt-262.

Full text
Abstract:
A numerical solution procedure, which includes a locally implicit finite volume scheme and an adaptive mesh generation technique, has been developed to study airfoil and cascade flows. The Euler/Navier-Stokes, continuity and energy equations, in conjunction with Baldwin-Lomax model for turbulent flow, are solved in cartesian coordinate system. To simulate physical phenomena efficiently and correctly, a mixed type of mesh, the unstructured triangular cell for the inviscid region and structured quadrilateral cell for the viscous, boundary layer and wake regions, is introduced in this work. The i
APA, Harvard, Vancouver, ISO, and other styles
7

Movva, Jagadeesh, Dimitrios Papadogiannis, and Stéphane Hiernaux. "Assessment of Wall Modelling for Large Eddy Simulations of Turbomachinery." In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-75773.

Full text
Abstract:
The design process of turbomachinery components relies heavily on Reynods Averaged Navier Stokes (RANS) simulations. This approach is well suited for steady simulations and comes with a low computational cost. However, turbomachinery flows are complex and difficult to predict accurately with RANS computations. Large Eddy Simulations (LES), capable of resolving the larger scales of turbulence, are a promising way to improve the predictive capability of numerical simulations. The main drawback of LES for wall bounded flows is its high computational cost, scaling with Re1.86 [1]. Turbomachinery c
APA, Harvard, Vancouver, ISO, and other styles
8

Bertolini, Ettore, Paul Pieringer, and Wolfgang Sanz. "Prediction of Separated Flow Transition Using LES and Transitional RANS Model." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-90214.

Full text
Abstract:
Abstract The goal of this work is to predict the boundary layer transition induced by a separation bubble on the suction side of a turbine blade of a linear turbine cascade using Large Eddy Simulation (LES). The numerical simulations refer to the linear turbine cascade T106D-EIZ tested at the Institute for Jet Propulsion of the Bundeswehr University Munich (Germany). The blade pitch was increased compared to the design point in order to have a higher load and enhance the formation of a separation bubble at the suction side of the blade. Different flow configurations were tested and the transit
APA, Harvard, Vancouver, ISO, and other styles
9

He, Xiao, Fanzhou Zhao, and Mehdi Vahdati. "A Turbo-Oriented Data-Driven Modification to the Spalart-Allmaras Turbulence Model." In ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/gt2022-80456.

Full text
Abstract:
Abstract The Spalart-Allmaras turbulence model is one of the most popular models applied to compressors, but it often over-predicts compressor blockage size and hence under-predicts the compressor stall margin. In this paper, a novel modification to the SA model is proposed to improve the prediction of compressor near-stall flows. The modification is based on the dimensionless vortical pressure gradient, which identifies blockage cells featured by 3D swirling low-momentum flows under adverse pressure gradients. It unblocks the compressor passage by enhancing the eddy viscosity in the identifie
APA, Harvard, Vancouver, ISO, and other styles
10

Tieghi, Lorenzo, Alessandro Corsini, Giovanni Delibra, and Gino Angelini. "Assessment of a Machine-Learnt Adaptive Wall-Function in a Compressor Cascade With Sinusoidal Leading Edge." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-91238.

Full text
Abstract:
Abstract Near-wall modelling is one of the most challenging aspects of CFD computations. In fact, integration-to-the-wall with low-Reynolds approach strongly affects accuracy of results, but strongly increases the computational resources required by the simulation. A compromise between accuracy and speed to solution is usually obtained through the use of wall functions, especially in RANS computations, which normally require that the first cell of the grid to fall inside the log-layer (50 < y+ < 200) [1]. This approach can be generally considered as robust, however the derivation of wall
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Cascade of turbulent cells"

1

Yang, Rui Q., Michael B. Santos, and Matthew B. Johnson. Interband Cascade Photovoltaic Cells. Office of Scientific and Technical Information (OSTI), 2014. http://dx.doi.org/10.2172/1157586.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Eaton, John K., Christopher J. Elkins, and Sayuri D. Yapa. Turbulent Dispersion of Film Coolant and Hot Streaks in a Turbine Vane Cascade. Defense Technical Information Center, 2015. http://dx.doi.org/10.21236/ada625654.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Birkmire, R. W., B. E. McCandless, and J. E. Phillips. Two-terminal CuInSe/sub 2/-based cascade cells: Annual subcontract report, 16 January 1987--15 January 1988. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/6108038.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Cohick, Wendie S. Phosphorylation of Intracellular IGF Binding Protein-3 by the IGF Signaling Cascade is Essential for Its Growth-Enhancing Effect in Mammary Epithelial Cells. Defense Technical Information Center, 2002. http://dx.doi.org/10.21236/ada409764.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Cohick, Wendie S. Phosphorylation of Intracellular IGF Binding Protein-3 by the IGF Signaling Cascade is Essential for its Growth-Enhancing Effect in Mammary Epithelial Cells. Defense Technical Information Center, 2003. http://dx.doi.org/10.21236/ada418987.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Moran, Nava, Richard Crain, and Wolf-Dieter Reiter. Regulation by Light of Plant Potassium Uptake through K Channels: Biochemical, Physiological and Biophysical Study. United States Department of Agriculture, 1995. http://dx.doi.org/10.32747/1995.7571356.bard.

Full text
Abstract:
The swelling of plant motor cells is regulated by various signals with almost unknown mediators. One of the obligatory steps in the signaling cascade is the activation of K+-influx channels -K+ channels activated by hyperpolarization (KH channels). We thus explored the regulation of these channels in our model system, motor cell protoplasts from Samanea saman, using patch-clamp in the "whole cell" configuration. (a) The most novel finding was that the activity of KH channels in situ varied with the time of the day, in positive correlation with cell swelling: in Extensor cells KH channels were
APA, Harvard, Vancouver, ISO, and other styles
7

Coplin, David L., Shulamit Manulis, and Isaac Barash. roles Hrp-dependent effector proteins and hrp gene regulation as determinants of virulence and host-specificity in Erwinia stewartii and E. herbicola pvs. gypsophilae and betae. United States Department of Agriculture, 2005. http://dx.doi.org/10.32747/2005.7587216.bard.

Full text
Abstract:
Gram-negative plant pathogenic bacteria employ specialized type-III secretion systems (TTSS) to deliver an arsenal of pathogenicity proteins directly into host cells. These secretion systems are encoded by hrp genes (for hypersensitive response and pathogenicity) and the effector proteins by so-called dsp or avr genes. The functions of effectors are to enable bacterial multiplication by damaging host cells and/or by blocking host defenses. We characterized essential hrp gene clusters in the Stewart's Wilt of maize pathogen, Pantoea stewartii subsp. stewartii (Pnss; formerly Erwinia stewartii)
APA, Harvard, Vancouver, ISO, and other styles
8

Coplin, David, Isaac Barash, and Shulamit Manulis. Role of Proteins Secreted by the Hrp-Pathways of Erwinia stewartii and E. herbicola pv. gypsophilae in Eliciting Water-Soaking Symptoms and Initiating Galls. United States Department of Agriculture, 2001. http://dx.doi.org/10.32747/2001.7580675.bard.

Full text
Abstract:
Many bacterial pathogens of plants can inject pathogenicity proteins into host cells using a specialized type III secretion system encoded by hrpgenes. This system deliver effector proteins, into plant cells that function in both susceptible and resistant interactions. We have found that the virulence of Erwinia stewartii(Es; syn. Pantoea stewartii) and Erwinia herbicola pv. gypsophilae (Ehg, syn. Pantoea agglomerans), which cause Stewart's wilt of corn and galls on Gypsophila, respectively, depends on hrpgenes. The major objectives of this project were: To increase expression of hrpgenes in o
APA, Harvard, Vancouver, ISO, and other styles
9

Philosoph-Hadas, Sonia, Richard Crain, Shimon Meir, Nehemia Aharoni, and Susan Lurie. Calcium-Mediated Signal Transduction during Leaf Senescence. United States Department of Agriculture, 1995. http://dx.doi.org/10.32747/1995.7604925.bard.

Full text
Abstract:
We have examined the possibility that modulation of [Ca2+]cyt may represent a signal which induces senescence processes in leaves, through triggering of lipid hydrolysis leading to the cascade of detriorative events. Characterization of the signal transduction components operating during leaf senescence was gained by studying various Ca2+-dependent activities of parsley and chrysanthemum leaves, in relation to several senescence functions, and in response to senescence-modulating hormones (ethylene,ABA, BA and IAA). Some innovative findings regarding the control of senescence processes by [Ca2
APA, Harvard, Vancouver, ISO, and other styles
10

Rafaeli, Ada, Russell Jurenka, and Daniel Segal. Isolation, Purification and Sequence Determination of Pheromonotropic-Receptors. United States Department of Agriculture, 2003. http://dx.doi.org/10.32747/2003.7695850.bard.

Full text
Abstract:
Moths constitute a major group of pest insects in agriculture. Pheromone blends are utilised by a variety of moth species to attract conspecific mates, which is under circadian control by the neurohormone, PBAN (pheromone-biosynthesis-activating neuropeptide). Our working hypothesis was that, since the emission of sex-pheromone is necessary to attract a mate, then failure to produce and emit pheromone is a potential strategy for manipulating adult moth behavior. The project aimed at identifying, characterising and determining the sequence of specific receptors responsible for the interaction w
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Cascade of turbulent cells' for particular source types:
Journal articles Dissertations / Theses
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography