Results 11 to 20 of about 2,483 (203)
An Adjoint Optimization Prediction Method for Partially Cavitating Hydrofoils
Journal of Marine Science and Engineering, 2021 Much work has been done over the past years to obtain a better understanding, predict and alleviate the effects of cavitation on the performance of lifting surfaces for hydrokinetic turbines and marine propellers.
Dimitra Anevlavi, Kostas Belibassakis
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Aeroacoustic and Aerodynamic Adjoint-Based Shape Optimization of an Axisymmetric Aero-Engine Intake
Aerospace, 2023 A continuous adjoint-based aeroacoustic optimization, based on a hybrid model including the Ffowcs Williams–Hawkings (FW–H) acoustic analogy, to account for the multidisciplinary design of aero-engine intakes with an axisymmetric geometry, is presented ...
Morteza Monfaredi +4 more
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The continuous adjoint method for automotive aeroacoustic shape optimization [PDF]
, 2021 Σε αυτή τη διδακτορική διατριβή εφαρμόστηκε η συνεχής συζυγής μέθοδος σε ένα υπάρχον υπολογιστικό πλαίσιο για την πρόλεξη του αεροδυναμικού θορύβου στο εσωτερικό οχημάτων. Αυτό περιλαμβάνει την μη-μόνιμη πρόλεξη της ροής με μια IDDES προσομοίωση για τον υπολογισμό της υδροδυναμικής πίεσης στον καθρέφτη, την κυρίαρχη πηγή θορύβου, το ολοκλήρωμα ...
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The adjoint-state method for the downward continuation of the geomagnetic field [PDF]
Geophysical Journal International, 2015 The downward continuation of the observed geomagnetic field from the Earth's surface to the core–mantle boundary (CMB) is complicated due to induction and diffusion processes in the electrically conducting Earth mantle, which modify the amplitudes and morphology of the geomagnetic field.
Hagedoorn, J., Martinec, Z.
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International Journal of Turbomachinery, Propulsion and Power, 2021 This paper presents an adjoint-based shape optimization framework and its demonstration in a conjugate heat transfer problem in a turbine blading. The gradient of the objective function is computed based on the continuous adjoint method, which also ...
Xenofon Trompoukis +4 more
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Adjoint Optimization for Vehicle External Aerodynamics
International Journal of Automotive Engineering, 2016 Adjoint optimization is an exciting and fast growing field that has many applications in the automotive industry. We focus on the usage of adjoint for the optimization of aerodynamic performance.
Karpouzas Georgios K. +5 more
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Constraints Optimal Control Governing by Triple Nonlinear Hyperbolic Boundary Value Problem
Journal of Applied Mathematics, 2020 The focus of this work lies on proving the existence theorem of a unique state vector solution (Stvs) of the triple nonlinear hyperbolic boundary value problem (TNHBVP) when the classical continuous control vector (CCCVE) is fixed by using the Galerkin ...
Jamil A. Ali Al-Hawasy, Lamyaa H. Ali
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AERODYNAMIC SHAPE OPTIMIZATION USING THE TRUNCATED NEWTON METHOD AND CONTINUOUS ADJOINT [PDF]
Proceedings of the VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016), 2016 This paper presents the development and application of the Truncated Newton (TN) method for shape optimization problems based on continuous adjoint. The method is presented for laminar, incompressible flows. OpenFOAM R is chosen as the CFD toolbox in which the method is developed.
Nejad, M.G. +2 more
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Parameter-Free Shape Optimization: Various Shape Updates for Engineering Applications
Aerospace, 2023 In the last decade, parameter-free approaches to shape optimization problems have matured to a state where they provide a versatile tool for complex engineering applications.
Lars Radtke +6 more
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Ibn Al-Haitham Journal for Pure and Applied Sciences, 2021 In this work, we prove that the triple linear partial differential equations (PDEs) of elliptic type (TLEPDEs) with a given classical continuous boundary control vector (CCBCVr) has a unique "state" solution vector (SSV) by utilizing the ...
Jamil A. Ali Al-Hawasy +1 more
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