Results 11 to 20 of about 125,502 (226)
On the Adjoint of a Strongly Continuous Semigroup [PDF]
Abstract and Applied Analysis, 2008 Using some techniques from vector integration, we prove the weak measurability of the adjoint of strongly continuous semigroups which factor through Banach spaces without isomorphic copy of l1; we also prove the strong continuity away from zero of the ...
Diómedes Bárcenas +1 more
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Continuous energy adjoint transport for photons in PHITS [PDF]
EPJ Web of Conferences, 2017 Adjoint Monte Carlo can be an effcient algorithm for solving photon transport problems where the size of the tally is relatively small compared to the source. Such problems are typical in environmental radioactivity calculations, where natural or fallout
Malins Alex +2 more
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Continuous and Discrete Adjoints to the Euler Equations for Fluids [PDF]
International Journal for Numerical Methods in Fluids, 2011 Adjoints are used in optimization to speed-up computations, simplify optimality conditions or compute sensitivities. Because time is reversed in adjoint equations with first order time derivatives, boundary conditions and transmission conditions through ...
Alauzet, Frederic, Pironneau, Olivier
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Continuous adjoint complement to the Blasius equation [PDF]
Physics of Fluids, 2021 This manuscript is concerned with a continuous adjoint complement to two-dimensional, incompressible, first-order boundary-layer equations for a flat plate boundary layer. The text is structured into three parts. The first part demonstrates that the adjoint complement can be derived in two ways, following either a first simplify then derive or a first ...
Niklas Kühl +2 more
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RANS turbulence treatment for continuous adjoint optimization [PDF]
Proceeding of THMT-15. Proceedings of the Eighth International Symposium On Turbulence Heat and Mass Transfer, 2015 This paper discusses the implementational aspects related to the turbulence modelling for continuous adjoint optimization. The starting point is the derivation of equations of the high-Reynolds number k- model of turbulence in the framework of continuous adjoint optimization.
Mirza Popovac +3 more
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Continuity is an Adjoint Functor [PDF]
The American Mathematical Monthly, 2015 To appear in the American Mathematical ...
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Continuous Adjoint Method for Unstructured Grids [PDF]
AIAA Journal, 2008 Adjoint-based shape optimization methods have proven to be computationally efficient for aerodynamic problems. The majority of the studies on adjoint methods have used structured grids to discretize the computational domain. Because of the potential advantages of unstructured grids for complex configurations, in this study we have developed and ...
Antony Jameson +2 more
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A Continuous Adjoint Approach For Vehicle Interior Noise Reduction [PDF]
ECCOMAS, 2016 In this paper the continuous adjoint method is developed for a vibroacoustic model that predicts the interior noise of a vehicle induced by the airflow. The model simulates the front side window vibration, excited by the acoustic and hydrodynamic pressure load, and the resulting sound wave propagation into the cabin. Targeting interior noise reduction,
Kapellos, Christos, Hartmann, Michael
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Analytic Adjoint Solutions for the Quasi-1D Euler Equations [PDF]
, 2000 The analytic properties of adjoint solutions are examined for the quasi-1D Euler equations. For shocked flow, the derivation of the adjoint problem reveals that the adjoint variables are continuous with zero gradient at the shock, and that an internal ...
Giles, M. B., Pierce, Niles A.
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Derivation of the Adjoint Drift Flux Equations for Multiphase Flow
Fluids, 2020 The continuous adjoint approach is a technique for calculating the sensitivity of a flow to changes in input parameters, most commonly changes of geometry.
Shenan Grossberg +2 more
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