Search Results - "Multigrid preconditioned conjugate gradient algorithm"

A Parallel Multigrid Preconditioned Conjugate Gradient Algorithm for Groundwater Flow Simulations

Authors: S. F. Ashby Robert D. Falgout

Source: Nuclear Science and Engineering. 124:145-159

Subject Terms: 0208 environmental biotechnology, 0207 environmental engineering, 02 engineering and technology, 6. Clean water

Access URL: https://www.tandfonline.com/doi/abs/10.13182/NSE96-A24230
https://www.ans.org/pubs/journals/nse/a_24230
https://www.osti.gov/scitech/biblio/379811-parallel-multigrid-preconditioned-conjugate-gradient-algorithm-groundwater-flow-simulations

On the Convergence Rate of a Preconditioned Subspace Eigensolver: On the convergence rate of a preconditioned subspace eigensolver

Authors: Suely Oliveira

Source: Computing. 63:219-231

Subject Terms: Numerical computation of eigenvalues and eigenvectors of matrices, Iterative numerical methods for linear systems, Multigrid methods, domain decomposition for boundary value problems involving PDEs, convergence, subspace method, preconditioner, eigenvalue problems, Numerical computation of matrix norms, conditioning, scaling, 01 natural sciences, multigrid preconditioned conjugate gradient algorithm, Boundary value problems for second-order elliptic equations, Davidson type algorithm, 0101 mathematics, condition number

File Description: application/xml

Access URL: https://link.springer.com/content/pdf/10.1007/s006070050032.pdf
https://core.ac.uk/display/24027405
https://link.springer.com/article/10.1007/s006070050032
https://dblp.uni-trier.de/db/journals/computing/computing63.html#Oliveira99

Bone structure analysis on multiple GPGPUs

Authors: Arbenz, Peter Flaig, Cyril Kellenberger, Daniel

Subject Terms: Voxel-based computation, VERTEILTE PROGRAMMIERUNG + PARALLELE PROGRAMMIERUNG (PROGRAMMIERMETHODEN), OSTEOPOROSE (PATHOLOGIE), BONE STRUCTURE (ANATOMY AND PHYSIOLOGY), Micro nite element analysis, KNOCHENSTRUKTUR (ANATOMIE UND PHYSIOLOGIE), OSTEOPOROSIS (PATHOLOGY), CONCURRENT PROGRAMMING + DISTRIBUTED PROGRAMMING + PARALLEL PROGRAMMING (PROGRAMMING METHODS), Multigrid preconditioned conjugate gradient algorithm, Multiple GPGPUs, info:eu-repo/classification/ddc/004, info:eu-repo/classification/ddc/610, Data processing, computer science, Medical sciences, medicine

File Description: application/application/pdf

Relation: http://hdl.handle.net/20.500.11850/80387

Availability: https://hdl.handle.net/20.500.11850/80387
https://doi.org/10.3929/ethz-a-010056782

基于 PDE 灵敏度滤波器的算法研究. (Chinese)

Alternate Title: Algorithm Research Based on the PDE Sensitivity Filter. (English)

Authors: 孟换利 张岐良 王 杰

Source: Applied Mathematics & Mechanics (1000-0887); Jan2023, Vol. 44 Issue 1, p80-92, 13p

Subject Terms: MULTIGRID methods (Numerical analysis), CONJUGATE gradient methods, PATTERNS (Mathematics), BOUNDARY value problems, PARTIAL differential equations, FINITE element method, ALGEBRAIC equations

A new approach for joint assimilation of cosmic-ray neutron soil moisture and groundwater level data into an integrated terrestrial model.

Authors: Li, Fang Bogena, Heye Reemt Keller, Johannes et al.

Source: Hydrology & Earth System Sciences; 2025, Vol. 29 Issue 22, p6419-6443, 25p

Coupling the ParFlow Integrated Hydrology Model within the NASA Land Information System: a case study over the Upper Colorado River Basin.

Authors: Abbaszadeh, Peyman Zaouna Maina, Fadji Yang, Chen et al.

Source: Hydrology & Earth System Sciences; 2025, Vol. 29 Issue 20, p5429-5452, 24p

Subject Terms: HYDROLOGY, GROUNDWATER, CLIMATE change, COMPUTER simulation, WATERSHEDS, SOIL moisture, HYDROLOGIC models, WATER supply

Company/Entity: UNITED States. National Aeronautics & Space Administration

Subgrid channel formulation in an integrated surface-subsurface hydrologic model.

Authors: Peeples, Amelia Maxwell, Reed M.

Source: Frontiers in Water; 2025, p1-12, 12p

Subject Terms: HYDROLOGIC models, MICROCHANNEL flow, FLOW measurement, RUNOFF

PRIMAL-DUAL INTERIOR POINT MULTIGRID METHOD FOR TOPOLOGY OPTIMIZATION.

Authors: KOČVARA, MICHAL MOHAMMED, SUDABA

Source: SIAM Journal on Scientific Computing; 2016, Vol. 38 Issue 5, pB685-B709, 25p

Subject Terms: ALGEBRAIC topology, MATHEMATICAL optimization, ALGORITHM software, CONJUGATE gradient methods, MULTIGRID methods (Numerical analysis)

Modeling a geologically complex volcanic watershed for integrated water resources management in Mt. Fuji, Japan.

Authors: Musy SL Dresmann H Tomonaga Y et al.

Source: Scientific data [Sci Data] 2025 Dec 06. Date of Electronic Publication: 2025 Dec 06.

Publication Type: Journal Article

Journal Info: Publisher: Nature Publishing Group Country of Publication: England NLM ID: 101640192 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2052-4463 (Electronic) Linking ISSN: 20524463 NLM ISO Abbreviation: Sci Data Subsets: MEDLINE

Integrating the Interconnections Between Groundwater and Land Surface Processes Through the Coupled NASA Land Information System and ParFlow Environment.

Authors: Maina, Fadji Z. Rosen, Dan Abbaszadeh, Peyman et al.

Source: Journal of Advances in Modeling Earth Systems; Feb2025, Vol. 17 Issue 2, p1-19, 19p

Subject Terms: DATA assimilation, ATMOSPHERIC boundary layer, HYDROLOGIC models, WATER transfer, HYDROLOGIC cycle

Analysis of a multigrid preconditioner for Crouzeix-Raviart discretization of elliptic partial differential equation with jump coefficients.

Authors: Zhu, Yunrong

Source: Numerical Linear Algebra with Applications; Jan2014, Vol. 21 Issue 1, p24-38, 15p

Subject Terms: MULTIGRID methods (Numerical analysis), DISCRETIZATION methods, ELLIPTIC differential equations, PARTIAL differential equations, SUBSPACES (Mathematics), STOCHASTIC convergence

Impacts of Wildfires on Groundwater Recharge: A Comprehensive Analysis of Processes, Methodological Challenges, and Research Opportunities.

Authors: Guzmán-Rojo, Mónica Fernandez, Jeanne d'Abzac, Paul et al.

Source: Water (20734441); Sep2024, Vol. 16 Issue 18, p2562, 23p

Subject Terms: LEAF area index, WATER supply, LAND surface temperature, HYDRAULIC conductivity, HYDROLOGY, GROUNDWATER recharge

Hydro-pedotransfer functions: a roadmap for future development.

Authors: Weber, Tobias Karl David Weihermüller, Lutz Nemes, Attila et al.

Source: Hydrology & Earth System Sciences; 2024, Vol. 28 Issue 14, p3391-3433, 43p

Subject Terms: TEMPERATE climate, DATA warehousing, AGRICULTURE, RESEARCH personnel, LAND use

Numerical investigation of hydrodynamic characteristics for flow past a square cylinder due to combined wave-current effect.

Authors: Dutta, Debasish Afzal, Mohammad Saud

Source: Physics of Fluids; Jul2024, Vol. 36 Issue 7, p1-32, 32p

Subject Terms: COMPUTATIONAL fluid dynamics, WAVE-current interaction, FREE surfaces, VORTEX motion, TURBULENCE

Dual Domain Decomposition Method for High-Resolution 3D Simulation of Groundwater Flow and Transport.

Authors: Deng, Hao Li, Jiaxin Huang, Jixian et al.

Source: Water (20734441); Jul2024, Vol. 16 Issue 13, p1864, 27p

Subject Terms: DOMAIN decomposition methods, GROUNDWATER flow, FLOW simulations, ALGEBRAIC multigrid methods, LINEAR systems

Transport, dispersion, and degradation of nonpoint source contaminants during flood‐managed aquifer recharge.

Authors: Perzan, Zach Maher, Kate

Source: Vadose Zone Journal; Mar2024, Vol. 23 Issue 2, p1-14, 14p

Subject Terms: ENVIRONMENTAL history, POLLUTANTS, GROUNDWATER recharge, WATER table, WATER supply, GROUNDWATER management

Comparative calibration of 1D+2D and 3D hydrogeological watershed models.

Authors: Latour, Gillien Horgue, Pierre Renard, François et al.

Source: Computational Geosciences; Feb2024, Vol. 28 Issue 1, p65-76, 12p

Can a Sparse Network of Cosmic Ray Neutron Sensors Improve Soil Moisture and Evapotranspiration Estimation at the Larger Catchment Scale?

Authors: Li, Fang Bogena, Heye Reemt Bayat, Bagher et al.

Source: Water Resources Research; Jan2024, Vol. 60 Issue 1, p1-33, 33p

Subject Terms: SOIL moisture, COSMIC rays, STANDARD deviations, NEUTRONS, EVAPOTRANSPIRATION, KALMAN filtering

Continental Scale Hydrostratigraphy: Comparing Geologically Informed Data Products to Analytical Solutions.

Authors: Swilley, Jackson S. Tijerina‐Kreuzer, Danielle Tran, Hoang V. et al.

Source: Ground Water; Jan2024, Vol. 62 Issue 1, p75-92, 18p

Subject Terms: ANALYTICAL solutions, HYDRAULIC conductivity, HYDROLOGIC models, WATERSHEDS, STREAMFLOW

Geographic Terms: UNITED States

Company/Entity: GEOLOGICAL Survey (U.S.)

Investigating the Impact of Irrigation on Malaria Vector Larval Habitats and Transmission Using a Hydrology‐Based Model.

Authors: Jiang, Ai‐Ling Lee, Ming‐Chieh Selvaraj, Prashanth et al.

Source: Geohealth; Dec2023, Vol. 7 Issue 12, p1-19, 19p

Subject Terms: INSECTICIDE resistance, IRRIGATION, MOSQUITO control, MALARIA, SUGAR plantations, HABITATS, VECTOR-borne diseases

Geographic Terms: SUB-Saharan Africa, ETHIOPIA