Comparison of finite element density functional with NWChem results for 18 molecules
نویسندگان
چکیده
Abstract Making use of the code presented in previous work by Braun et al. (Eur Phys J B 92:230, 2019), finite element density functional calculations have been performed Cartesian coordinates using approach for 18 mostly organic molecules, which are acetic acid, ammonia, benzene, butane, carbon-dioxide, ethane, ethanol, fluorine gas, iso-butane, methane, methanol, nitrogen pentane, propane, urea, and water. The resulting total energies densities were compared with those obtained Gaussian basis set package NWChem (Valiev Comput Commun 181:1477, 2010) a number sets. We found very good agreement considered molecules two different approaches. This further highlights success usefulness approach.
منابع مشابه
A Super - Element Based on Finite Element Method for Latticed Columns Computational Aspect and Numerical Results
This paper presents a new super-element with twelve degrees of freedom for latticed columns. This elements is developed such that it behaves, with an acceptable approximation, in the same manner as a reference model does. The reference model is constructed by using many Solid elements. The cross section area, moments of inertia, shear coefficient and torsoinal rigidity of the developed new elem...
متن کاملA Super - Element Based on Finite Element Method for Latticed Columns Computational Aspect and Numerical Results
This paper presents a new super-element with twelve degrees of freedom for latticed columns. This elements is developed such that it behaves, with an acceptable approximation, in the same manner as a reference model does. The reference model is constructed by using many Solid elements. The cross section area, moments of inertia, shear coefficient and torsoinal rigidity of the developed new elem...
متن کاملAdsorption of ozone molecules on AlP-codoped stanene nanosheet: A density functional theory study
Density functional theory calculations were carried out to investigate the structural and electronicproperties of the adsorption of O3 molecules on AlP-codoped monolayers to fully exploit the gas sensingcapability of these two-dimensional materials. Various adsorption sites of O3 molecule on the considerednanosheets were examined in detail. The side oxygen atoms of the O3 mole...
متن کاملFunctional Programming for Finite Element Analysis
This report is a detailed study of the application of functional programming to a typical problem in engineering computing||nite element structural analysis. The report assumes no prior knowledge of structural analysis, but does presume some familiarity with the Miranda programming language. It begins by showing how a basic linear algebra (BLAS) library can be built in Miranda, to perform eleme...
متن کاملFinite Element Methods for Convection Diffusion Equation
This paper deals with the finite element solution of the convection diffusion equation in one and two dimensions. Two main techniques are adopted and compared. The first one includes Petrov-Galerkin based on Lagrangian tensor product elements in conjunction with streamlined upwinding. The second approach represents Bubnov/Petrov-Galerkin schemes based on a new group of exponential elements. It ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Indian Journal of Physics
سال: 2023
ISSN: ['0019-5480', '0974-9845', '0973-1458']
DOI: https://doi.org/10.1007/s12648-023-02663-6