Academic literature on the topic 'Subgrid'
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Journal articles on the topic "Subgrid"
NESLITURK, ALI I. "A STABILIZING SUBGRID FOR CONVECTION–DIFFUSION PROBLEM." Mathematical Models and Methods in Applied Sciences 16, no. 02 (February 2006): 211–31. http://dx.doi.org/10.1142/s0218202506001121.
Full textYeh, Pat J.-F., and Elfatih A. B. Eltahir. "Representation of Water Table Dynamics in a Land Surface Scheme. Part II: Subgrid Variability." Journal of Climate 18, no. 12 (June 15, 2005): 1881–901. http://dx.doi.org/10.1175/jcli3331.1.
Full textHabets, F., and G. M. Saulnier. "Subgrid runoff parameterization." Physics and Chemistry of the Earth, Part B: Hydrology, Oceans and Atmosphere 26, no. 5-6 (January 2001): 455–59. http://dx.doi.org/10.1016/s1464-1909(01)00034-x.
Full textValdettaro, L. "Subgrid-Scale modeling." EAS Publications Series 21 (2006): 197–218. http://dx.doi.org/10.1051/eas:2006114.
Full textPark, Noma, and Krishnan Mahesh. "A velocity-estimation subgrid model constrained by subgrid scale dissipation." Journal of Computational Physics 227, no. 8 (April 2008): 4190–206. http://dx.doi.org/10.1016/j.jcp.2007.12.020.
Full textChen, Yaling, Luxi Hao, and Gaowen Yin. "Distributed Energy Management of the Hybrid AC/DC Microgrid with High Penetration of Distributed Energy Resources Based on ADMM." Complexity 2021 (September 14, 2021): 1–9. http://dx.doi.org/10.1155/2021/1863855.
Full textZhou, Ye. "Eddy damping, backscatter, and subgrid stresses in subgrid modeling of turbulence." Physical Review A 43, no. 12 (June 1, 1991): 7049–52. http://dx.doi.org/10.1103/physreva.43.7049.
Full textBrillant, Guillaume, Sabine Husson, and Françoise Bataille. "Subgrid-Scale Diffusivity: Wall Behavior and Dynamic Methods." Journal of Applied Mechanics 73, no. 3 (September 26, 2004): 360–67. http://dx.doi.org/10.1115/1.2173005.
Full textKitsios, Vassili, Jorgen S. Frederiksen, and Meelis J. Zidikheri. "Subgrid Model with Scaling Laws for Atmospheric Simulations." Journal of the Atmospheric Sciences 69, no. 4 (March 30, 2012): 1427–45. http://dx.doi.org/10.1175/jas-d-11-0163.1.
Full textVerrelle, Antoine, Didier Ricard, and Christine Lac. "Evaluation and Improvement of Turbulence Parameterization inside Deep Convective Clouds at Kilometer-Scale Resolution." Monthly Weather Review 145, no. 10 (October 2017): 3947–67. http://dx.doi.org/10.1175/mwr-d-16-0404.1.
Full textDissertations / Theses on the topic "Subgrid"
Quaas, Johannes, Verena Grützun, Vera Schemann, and Torsten Weber. "Evaluating parameterisations of subgrid-scale variability." Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-189788.
Full textQuaas, Johannes, Verena Grützun, Vera Schemann, and Torsten Weber. "Evaluating parameterisations of subgrid-scale variability." European Centre for Medium-Range Weather Forecasts, 2013. https://ul.qucosa.de/id/qucosa%3A13993.
Full textCandy, Adam S. "Subgrid scale modelling of transport processes." Thesis, Imperial College London, 2008. http://hdl.handle.net/10044/1/5496.
Full textChakravarthy, Veerathu Kalyana. "Stochastic subgrid modeling of turbulent premixed flames." Diss., Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/12934.
Full textPietarila, Graham Jonathan. "Regularizations as subgrid models for turbulent flows." Connect to online resource, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3273737.
Full textEl-Asrag, Hossam Abd El-Raouf. "Large Eddy Simulation Subgrid Model for Soot Prediction." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14652.
Full textCalhoon, William Henry Jr. "On subgrid combustion modeling for large-eddy simulations." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/12336.
Full textPríncipe, Ricardo Javier. "Subgrid scale stabilized finite elements for low speed flows." Doctoral thesis, Universitat Politècnica de Catalunya, 2008. http://hdl.handle.net/10803/6870.
Full textLa complejidad de estos problemas matemáticos hace que su solución numérica sea muy difícil. En estos problemas el método de los elementos finitos es inestable, lo que en la práctica implica soluciones numéricas que presentan oscilaciones nodo a nodo de naturaleza no física. En las ecuaciones de Navier Stokes incompresible, dos fuentes bien conocidas de inestabilidad son la condición de incompresibilidad y la presencia del término convectivo. Muchas técnicas de estabilización utilizadas hoy en día se basan en la separación de escalas, descomponiendo la incógnita en una parte gruesa inducida por la discretización del domino y una parte fina de subescala. Modelar la subescala y su influencia conduce a un problema modificado para la escala gruesa que resulta estable.
Aunque las técnicas de estabilización son ampliamente utilizadas hoy en día, importantes problemas permanecen abiertos. Contribuyendo a su comprensión, en este trabajo se analizan varios aspectos del modelado de las subescalas. Para problemas escalares de segundo orden, se encuentra la dependencia de la subescala con el tamaño de la malla en el caso general de mallas anisótropas. Estas ideas son extendidas a sistemas de ecuaciones para considerar el problema de Oseen. También se analiza el modelado de las subescalas en problemas transitorios, obteniendo un mejor esquema de integración temporal para el problema de escala gruesa. Para considerar flujos a baja velocidad, se presenta la extensión de estas técnicas a problemas no lineales acoplados, lo que esta íntimamente relacionado con el problema del modelado de la turbulencia, que es un tema en si mismo.
Los flujos acoplados térmicamente, aparte del interés intrínseco que merecen, son importantes desde un punto de vista ingenieril. Una solución precisa del problema de flujo es necesaria para definir las cargas térmicas sobre las estructuras, que en muchos casos responden fuertemente, haciendo el problema acoplado. Esta clase de problemas, que motivaron este trabajo, incluyen la respuesta estructural en el caso de un incendio.
A general description of a fluid flow involves the solution of the compressible Navier-Stokes equations, a very complex problem whose mathematical structure is not well understood. Therefore, simplified models can be derived by asymptotic analysis under some assumptions on the problem, made in terms of dimensionless parameters that measure the relative importance of different physical processes. Low speed flows can be described by several models including the incompressible Navier Stokes equations whose mathematical structure is much better understood. However many important flows cannot be considered as incompressible, even at low speed, due to the presence of thermal effects. In such kind of problems another class of simplified equations can be derived: the Boussinesq equations and the Low Mach number equations.
The complexity of these mathematical problems makes their numerical solution very difficult. For these problems the standard finite element method is unstable, what in practice means that node to node oscillations of non physical nature may appear in the numerical solution. In the incompressible Navier Stokes equations, two well known sources of numerical instabilities are the incompressibility constraint and the presence of the convective terms. Many stabilization techniques used nowadays are based on scale separation, splitting the unknown into a coarse part induced by the discretization of the domain and a fine subgrid part. The modelling of the subgrid scale and its influence leads to a modified coarse scale problem that now can be shown to be stable.
Although stabilization techniques are nowadays widely used, important problems remain open. Contributing to their understanding, several aspects of the subgrid scale modelling are analyzed in this work. For second order scalar problems, the dependence of the subgrid scale on the mesh size, in the general anisotropic case, is clarified. These ideas are extended to systems of equations to consider the Oseen problem. The modelling of the subgrid scales in transient problems is also analyzed, leading to an improved time discretization scheme for the coarse scale problem. To consider low speed flow models, the extension of these techniques to nonlinear and coupled problems is presented, something that is intimately related to the problem of turbulence modelling, which a entire subject on its own right.
Thermally coupled flow problems, despite the intrinsic interest they deserve, are important from an engineering point of view. An accurate solution of a flow problem is needed to define thermal loads on structures which, in many cases have a strong response, making the problem coupled. This kind of problems, that motivated this work, include the problem of a structural response in the case of fires.
Hinneburg, Detlef, and Nicole Mölders. "Dry deposition by an atmospheric model with horizontal subgrid." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-215342.
Full textZwei Programm-Module für mesoskalige Atmosphärenmodelle sind entwickelt worden, die Chemie-Transport-Vorgänge in höherer als der normalen Modellgitter-Auflösung simulieren. Im Vergleich zu hochaufgelösten Standardmodell-Anwendungen erweist sich diese Methode als effizienter. Die Module lösen die Chemie-Transport-Gleichungen (a) und schaffen das horizontale Untergitter für die meteorologischen und chemischen Berechnungen (b): (a) Im Chemie-Transport-Modul wird die Triade NO-N02-03 gemeinsam mit einer vereinfachten Kohlenwasserstoff-Chemie betrachtet. Berücksichtigt werden chemische Reaktionen, anthropogene und biogene Emissionen, trockene Deposition, passiver Transport und turbulente Diffusion. Für diese Berechnungen wurde innerhalb der untersten Modellschicht ein spezielles vertikales Untergitter eingeführt, um die in Oberflächennähe häufig angewendete Näherung konstanter Stoffflüsse zu eliminieren. (b) Das Untergitter-Modul unterteilt das horizontale Modellgitter in Unterzellen, auf welche die Berechnung der Boden- und Oberflächenflüsse bezogen wird. Die vertikalen Oberflächenflüsse von Impuls, sensibler und latenter Wärme, Strahlung, Bodenwärme und -feuchte sowie der chemischen Komponenten werden explizit im Untergitter bestimmt. Die über die Unterzellen gemittelten Flüsse werden für die im (gröberen) Modellgitter ablaufenden Berechnungen der meteorologischen Größen genutzt. Im Gegensatz dazu werden die chemischen Komponenten und Prozesse in allen Modellschichten vollständig auf dem Untergitter behandelt. Einige Ergebnisse dieser Methode werden im Vergleich mit Standard-Simulationen unterschiedlichen Auflösungsgrades gezeigt
Hinneburg, Detlef, and Nicole Mölders. "Dry deposition by an atmospheric model with horizontal subgrid." Wissenschaftliche Mitteilungen des Leipziger Instituts für Meteorologie ; 17 = Meteorologische Arbeiten aus Leipzig ; 5 (2000), S. 18-28, 2000. https://ul.qucosa.de/id/qucosa%3A15146.
Full textZwei Programm-Module für mesoskalige Atmosphärenmodelle sind entwickelt worden, die Chemie-Transport-Vorgänge in höherer als der normalen Modellgitter-Auflösung simulieren. Im Vergleich zu hochaufgelösten Standardmodell-Anwendungen erweist sich diese Methode als effizienter. Die Module lösen die Chemie-Transport-Gleichungen (a) und schaffen das horizontale Untergitter für die meteorologischen und chemischen Berechnungen (b): (a) Im Chemie-Transport-Modul wird die Triade NO-N02-03 gemeinsam mit einer vereinfachten Kohlenwasserstoff-Chemie betrachtet. Berücksichtigt werden chemische Reaktionen, anthropogene und biogene Emissionen, trockene Deposition, passiver Transport und turbulente Diffusion. Für diese Berechnungen wurde innerhalb der untersten Modellschicht ein spezielles vertikales Untergitter eingeführt, um die in Oberflächennähe häufig angewendete Näherung konstanter Stoffflüsse zu eliminieren. (b) Das Untergitter-Modul unterteilt das horizontale Modellgitter in Unterzellen, auf welche die Berechnung der Boden- und Oberflächenflüsse bezogen wird. Die vertikalen Oberflächenflüsse von Impuls, sensibler und latenter Wärme, Strahlung, Bodenwärme und -feuchte sowie der chemischen Komponenten werden explizit im Untergitter bestimmt. Die über die Unterzellen gemittelten Flüsse werden für die im (gröberen) Modellgitter ablaufenden Berechnungen der meteorologischen Größen genutzt. Im Gegensatz dazu werden die chemischen Komponenten und Prozesse in allen Modellschichten vollständig auf dem Untergitter behandelt. Einige Ergebnisse dieser Methode werden im Vergleich mit Standard-Simulationen unterschiedlichen Auflösungsgrades gezeigt.
Books on the topic "Subgrid"
Speziale, Charles G. On the subgrid-scale modeling of compressible turbulence. Hampton, Va: ICASE, 1987.
Find full textBurkhardt, Thomas. Subgrid-scale vertical energy fluxes over the African-Atlantic region. Bonn: Dümmler, 1990.
Find full textEl-Hady, Nabil M. Large-eddy simulation of laminar-turbulent breakdown at high speeds with dynamic subgrid-scale modeling. Hampton, Va: Langley Research Center, 1993.
Find full textCrovetti, James A. Comprehensive subgrade deflection acceptance criteria. Madison, WI: Wisconsin Dept. of Transportation, Division of Transportation Infrastructure Development, Bureau of Highway Construction, Technology Advancement Unit, 2001.
Find full textZhu, Hanhua, Zhijun Wu, Mengchong Chen, and Yongli Zhao. Controlling Differential Settlement of Highway Soft Soil Subgrade. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-0722-5.
Full textWidger, Allan. Subgrade shear failures: Joint C-SHRP/Saskatchewan Bayesian application. Ottawa: Canadian Strategic Highway Research Program, Transportation Association of Canada, 1995.
Find full textNewcomb, David E. Measuring in situ mechanical properties of pavement subgrade soils. Washington, D.C: National Academy Press, 1999.
Find full textEdwards, M. R. Interaction of a warehouse floor slab with a subgrade. Birmingham: University of Birmingham, 1987.
Find full textBushman, William H. Final report: Stabilization techniques for unpaved roads. Charlottesville, Va: Virginia Transportation Research Council, 2004.
Find full textPuppala, Anand J. Estimating stiffness of subgrade and unbound materials for pavement design. Washington, D.C: Transportation Research Board, 2008.
Find full textBook chapters on the topic "Subgrid"
Roos Launchbury, David. "Subgrid Models." In Unsteady Turbulent Flow Modelling and Applications, 7–14. Wiesbaden: Springer Fachmedien Wiesbaden, 2016. http://dx.doi.org/10.1007/978-3-658-11912-6_3.
Full textUliasz, Marek. "Subgrid-Scale Parameterizations." In Mesoscale Modeling of the Atmosphere, 13–19. Boston, MA: American Meteorological Society, 1994. http://dx.doi.org/10.1007/978-1-935704-12-6_2.
Full textYoshizawa, Akira. "Subgrid-Scale Modeling." In Hydrodynamic and Magnetohydrodynamic Turbulent Flows, 145–72. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-1810-3_5.
Full textDavidson, Lars, Davor Cokljat, Jochen Fröhlich, Michael A. Leschziner, Chris Mellen, and Wolfgang Rodi. "Task 1: Subgrid models." In Notes on Numerical Fluid Mechanics and Multidisciplinary Design (NNFM), 9–21. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-36457-3_2.
Full textDomaradzki, J. Andrzej, and Kuo-Chieh Loh. "The Subgrid-Scale Estimation Model." In Recent Advances in DNS and LES, 121–31. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4513-8_11.
Full textBrezzi, Franco, and Donatella Marini. "Subgrid Phenomena and Numerical Schemes." In Lecture Notes in Computational Science and Engineering, 73–89. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-642-56288-4_6.
Full textBrezzi, Franco, and Donatella Marini. "Subgrid Phenomena and Numerical Schemes." In Universitext, 1–16. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-55692-0_1.
Full textEl-Hady, Nabil M. "Structure Function Dynamic Subgrid-Scale Model." In Transition, Turbulence and Combustion, 343–54. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1032-7_34.
Full textBrasseur, James G., Hungrui Gong, and Shiyi Chen. "Subgrid-Resolved Scale Dynamics in Isotropic Turbulence." In Advances in Turbulence VI, 201–4. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0297-8_57.
Full textTrias, F. X., A. Gorobets, and A. Oliva. "A New Subgrid Characteristic Length for LES." In Direct and Large-Eddy Simulation XI, 135–41. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-04915-7_19.
Full textConference papers on the topic "Subgrid"
Gs, Sidharth. "A multiscale subgrid decomposition." In AIAA Scitech 2020 Forum. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2020. http://dx.doi.org/10.2514/6.2020-0820.
Full textArbogast, Todd, and Steven L. Bryant. "Numerical Subgrid Upscaling for Waterflood Simulations." In SPE Reservoir Simulation Symposium. Society of Petroleum Engineers, 2001. http://dx.doi.org/10.2118/66375-ms.
Full textReveillon, J., L. Vervisch, J. Reveillon, and L. Vervisch. "Subgrid-scale mixing - A dynamic approach." In 35th Aerospace Sciences Meeting and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1997. http://dx.doi.org/10.2514/6.1997-367.
Full textRailton, Chris J. "A rotated subgrid for 3D FDTD." In 2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. IEEE, 2015. http://dx.doi.org/10.1109/aps.2015.7304551.
Full textFREDERIKSEN, JORGEN S., and TERENCE J. O'KANE. "TURBULENCE CLOSURES AND SUBGRID-SCALE PARAMETERIZATIONS." In Proceedings of the COSNet/CSIRO Workshop on Turbulence and Coherent Structures in Fluids, Plasmas and Nonlinear Media. WORLD SCIENTIFIC, 2007. http://dx.doi.org/10.1142/9789812771025_0014.
Full textWong, Alfred K. K., and Lars W. Liebmann. "Asymmetric biasing for subgrid pattern adjustment." In 26th Annual International Symposium on Microlithography, edited by Christopher J. Progler. SPIE, 2001. http://dx.doi.org/10.1117/12.435697.
Full textMadsen, P. A., M. Rugbjerg, and I. R. Warren. "Subgrid Modelling in Depth Integrated Flows." In 21st International Conference on Coastal Engineering. New York, NY: American Society of Civil Engineers, 1989. http://dx.doi.org/10.1061/9780872626874.036.
Full textvan Antwerpen, Vincent V., Wim A. Mulder, and Gérard C. Herman. "Subgrid elastic modeling in cracked media." In SEG Technical Program Expanded Abstracts 2001. Society of Exploration Geophysicists, 2001. http://dx.doi.org/10.1190/1.1816544.
Full textPortela, Lui´s M., and Rene´ V. A. Oliemans. "Subgrid Particle-Fluid Coupling Evaluation in Large-Eddy Simulations of Particle-Laden Flows." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33113.
Full textLabryer, Allen, Peter Attar, and Prakash Vedula. "Subgrid-scale dynamics for a nonlinear beam." In 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
20th AIAA/ASME/AHS Adaptive Structures Conference
14th AIAA. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2012. http://dx.doi.org/10.2514/6.2012-1711.
Reports on the topic "Subgrid"
Novikov, Evgeny. Structure of Turbulence and Subgrid-Scale Modeling. Fort Belvoir, VA: Defense Technical Information Center, March 1997. http://dx.doi.org/10.21236/ada325561.
Full textGivi, P., and M. R. Sheikhi. Filtered Density Function for Subgrid Scale Modeling of Turbulent Combustion. Fort Belvoir, VA: Defense Technical Information Center, February 2009. http://dx.doi.org/10.21236/ada498253.
Full textBessac, Julie, William Pringle, Steven Brus, Yan Feng, Beth Drewniak, Virendra Ghate, Romit Maulik, and Johann Rudi. AI-Automated Detection of Subgrid-scale Processes for Adaptivity Guidance. Office of Scientific and Technical Information (OSTI), April 2021. http://dx.doi.org/10.2172/1769664.
Full textCarniel, Sandro. Subgrid-Scale Parameterization in 3-D Models: The Role of Turbulent Mixing. Fort Belvoir, VA: Defense Technical Information Center, September 2006. http://dx.doi.org/10.21236/ada631065.
Full textCarniel, Sandro. Subgrid-Scale Parameterization in 3-D Models: The Role of Turbulent Mixing. Fort Belvoir, VA: Defense Technical Information Center, September 2007. http://dx.doi.org/10.21236/ada573349.
Full textDickinson, Robert Earl. Final Report: Systematic Development of a Subgrid Scaling Framework to Improve Land Simulation. Office of Scientific and Technical Information (OSTI), July 2016. http://dx.doi.org/10.2172/1261106.
Full textMenon, Suresh. A New Approach to Validate Subgrid Models in Complex High Reynolds Number Flows. Fort Belvoir, VA: Defense Technical Information Center, May 1994. http://dx.doi.org/10.21236/ada282340.
Full textMenon, Suresh. A New Approach to Validate Subgrid Models in Complex High Reynolds Number Flows. Fort Belvoir, VA: Defense Technical Information Center, June 1996. http://dx.doi.org/10.21236/ada317103.
Full textMenon, Suresh. A New Approach to Validate Subgrid Models in Complex High Reynolds Number Flows. Fort Belvoir, VA: Defense Technical Information Center, March 1998. http://dx.doi.org/10.21236/ada342640.
Full textPerot, Blair. Large Eddy Simulation Using a Transport Equation for the Subgrid-Scale Stress Tensor. Fort Belvoir, VA: Defense Technical Information Center, March 2007. http://dx.doi.org/10.21236/ada469740.
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