نتایج جستجو برای: hp spectral

تعداد نتایج: 176462  

Journal: :Siam Review 2021

We present a successful deployment of high-fidelity large-eddy simulation (LES) technologies based on spectral/$hp$ element methods to industrial flow problems, which are characterized by high Reyn...

2016
R. Ranjan Y. Feng A. Chronopoulos

In this paper we implement the element-by-element preconditioner and inexact Newton-Krylov methods (developed in the past) for solving stabilized computational fluid dynamics (CFD) problems with spectral methods. Two different approaches are implemented for speeding up the process of solving both steady and unsteady incompressible Navier-Stokes equations. The first approach concerns the applica...

Journal: :Physiological research 2009
M Rossi A Carpi C Di Maria F Franzoni F Galetta G Santoro

Fourier spectral analysis of forearm skin laser Doppler flowmetry (LDF) signal was performed in fifteen hypercholesterolemic patients (HP), without clinically manifest arterial diseases, and in fifteen age-matched healthy control subjects (CS), in order to investigate skin blood flowmotion (SBF). The LDF frequency intervals studied were: 0.01-1.6 Hz total spectrum, as well as 0.01-0.02 Hz (endo...

Journal: :Computer Methods in Applied Mechanics and Engineering 2019

2011
Z. WANG

In this paper we study the heat trace expansion of the perturbed harmonic oscillator by adapting to the semiclassical setting techniques developed by Hitrick-Polterovich in [HP]. We use the expansion to obtain certain inverse spectral results.

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد یزد - دانشکده شیمی 1393

فاضلاب واحدهای چاپ و رنگرزی در صنایع نساجی اغلب حاوی رنگ و مواد شیمیایی هستند. یکی از رنگ¬های مورد استفاده در این صنعت، رنگ آلیزارین زرد می¬باشد که دارای ترکیبات معطر، هتروسیکلیک، بسیار پایدار بوده و باعث سخت شدن فرآیند حذف رنگ از فاضلاب می¬شوند. در این تحقیق، جاذب¬های h5pv2w10o4 (hp)، hp+co و hp+co+k ساخته شد. جذب رنگ آلیزارین زرد بوسیله جاذب¬های hp، hp+co و hp+co+k توسط فرآیند جذب سطحی بررسی ...

Journal: :Computer Physics Communications 2015
Chris D. Cantwell David Moxey A. Comerford A. Bolis G. Rocco Gianmarco Mengaldo Daniele De Grazia Sergey Yakovlev J.-E. Lombard D. Ekelschot B. Jordi Hui Xu Y. Mohamied Claes Eskilsson B. Nelson Peter E. J. Vos C. Biotto Robert Michael Kirby Spencer J. Sherwin

Nektar++ is an open-source software framework designed to support the development of highperformance scalable solvers for partial differential equations using the spectral/hp element method. High-order methods are gaining prominence in several engineering and biomedical applications due to their improved accuracy over low-order techniques at reduced computational cost for a given number of degr...

1998
Spencer J. Sherwin Timothy C.E. Warburton George Em Karniadakis

We review the basic algorithms of spectral/hp element methods on tetrahedral grids and present newer developments on hybrid grids consisting of tetrahedra, hexahedra, prisms, and pyramids. A unified tensor-product trial basis is developed for all elements in terms of non-symmetric Jacobi polynomials. We present in some detail the patching procedure to ensure C continuity and appropriate solutio...

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