Results 81 to 90 of about 12,528,126 (212)

Optimizing Hydraulic Performance of a Jet Centrifugal Pump: A Hybrid Approach Combining Continuous Adjoint Method and Machine Learning

open access: yesApplied Sciences
Jet centrifugal pumps frequently suffer from low energy conversion efficiency due to severe fluid mixing and inter-stage interference. To address this, a structural optimization framework combining the continuous adjoint method and machine learning is ...
Weibin Mao   +6 more
doaj   +1 more source

Evaluation and assimilation of Arctic Weather Satellite data in the AROME‐Arctic forecast system

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
The Arctic Weather Satellite (AWS), launched in August 2024, is a prototype for the future EPS–Sterna constellation of small satellites carrying an innovative microwave sounder. We present the first assessment of AWS in the regional AROME‐Arctic numerical weather prediction system, covering post‐launch calibration results and the impact of AWS ...
Stéphanie Guedj   +2 more
wiley   +1 more source

Numerical Analysis of Higher Order Discontinuous Galerkin Finite Element Methods [PDF]

open access: yes, 2008
After the introduction in Section 1 this lecture starts off with recalling well-known results from the numerical analysis of the continuous finite element methods.
Hartmann, Ralf
core  

Enhancing severe convection forecasts with microwave radiance assimilation in limited‐area models

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Microwave satellite radiances remain largely underexploited in convection‐permitting limited‐area models. We assess the assimilation of humidity‐sensitive radiances from the MHS instrument in the operational ICON‐2I model, improving the precipitation forecast of a severe convective event over the Marche region, Italy, substantially by correcting ...
Marcello Grenzi   +5 more
wiley   +1 more source

Navigating the Early Years: A Guide for New Faculty Traverser les premières années : un guide à l'intention des jeunes chercheurs

open access: yesAccounting Perspectives, EarlyView.
ABSTRACT The transition from doctoral student to tenure‐track assistant professor marks a critical juncture in an academic career. This conceptual commentary offers experience‐based insights for early‐career accounting faculty, addressing the distinct pressures of a discipline shaped by professional certification requirements, diverse institutional ...
Seda Oz, Steve Fortin, Christopher Wong
wiley   +1 more source

Efficient polar optimization of transport aircraft in transonic RANS flow using adjoint gradient based approach [PDF]

open access: yes, 2012
A major design requirement for transport aircraft is efficient cruise flight in the transonic region. From the aerodynamic viewpoint, this is achieved by favorable lift-to-drag ratio of the aircraft, both at the main design point and at off-design ...
Brezillon, Joel   +2 more
core  

Implementation and evaluation of an array of chemical solvers in the Global Chemical Transport Model GEOS-Chem [PDF]

open access: yesGeoscientific Model Development, 2009
This paper discusses the implementation and performance of an array of gas-phase chemistry solvers for the state-of-the-science GEOS-Chem global chemical transport model. The implementation is based on the Kinetic PreProcessor (KPP).
P. Eller   +5 more
doaj  

Hierarchical Differentiable Fluid Simulation

open access: yesComputer Graphics Forum, EarlyView.
We introduce a two‐step algorithm that significantly reduces memory usage for solving control problems using differentiable fluid simulation techniques: our method first optimizes for bulk forces at reduced resolution, then refines local details over sub‐domains while maintaining differentiability. In trading runtime for memory, it enables optimization
Xiangyu Kong   +4 more
wiley   +1 more source

Inverse Turbulence Modeling of channel flow using Continuous Adjoint method [PDF]

open access: yes, 2016
In this thesis, a formal approach for inferring the functional forms of information that might be missing in Wilcox's $k-\omega$ model for turbulent channel flow has been presented.
Vishal, Kumar
core   +1 more source

The Continuous Adjoint Method on Graphics Processing Units For Compressible Flows

open access: yes, 2017
Presentation illustrating the continuous adjoint method on graphics processing units for compressible ...
Asouti, V.,   +3 more
core   +2 more sources

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