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    Wyświetlanie 1-3 z 3
    Tytuł:
    A sixth-order finite volume method for the 1D biharmonic operator: Application to intramedullary nail simulation
    Autorzy:
    Costa, R.
    Machado, G. J.
    Clain, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/330268.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    finite volume method
    polynomial reconstruction operator
    harmonic operator
    biharmonic operator
    high order method
    Opis:
    A new very high-order finite volume method to solve problems with harmonic and biharmonic operators for one-dimensional geometries is proposed. The main ingredient is polynomial reconstruction based on local interpolations of mean values providing accurate approximations of the solution up to the sixth-order accuracy. First developed with the harmonic operator, an extension for the biharmonic operator is obtained, which allows designing a very high-order finite volume scheme where the solution is obtained by solving a matrix-free problem. An application in elasticity coupling the two operators is presented. We consider a beam subject to a combination of tensile and bending loads, where the main goal is the stress critical point determination for an intramedullary nail.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2015, 25, 3; 529-537
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of Simulation Method in Analysis of Order-Picking Processes in a High-Rack Warehouse
    Autorzy:
    Kostrzewski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/409172.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    high-rack warehouse
    high bay warehouse
    simulation method
    simulation model
    order-picking process
    Opis:
    The aim of this paper is to discuss and explain the use of simulation methods in basic research on the most complicated type of processes in internal logistics, namely order-picking process, in case of high-rack warehouse(s). The research was conducted for randomized orders in picking lists. The analysis in the paper leads to determination whether the gained samples of data could be assigned as any theoretical probability distribution. By the name ”samples of data”, time durations of entire order-picking processes are understood. In order to study these processes, a simulation model was developed. The model was validated in order to compare its performance with classic method of order-picking time calculation in engineering practice. The simulation model considered in the paper was developed in accordance with guidelines of Discrete Event System Specification (DEVS) structure. The simulation tool used to build and analyze the simulation model was Plant Simulation 10.1.
    Źródło:
    Research in Logistics & Production; 2016, 6, 4; 309-319
    2083-4942
    2083-4950
    Pojawia się w:
    Research in Logistics & Production
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An accuracy analysis of the cascaded lattice Boltzmann method for the 1D advection-diffusion equation
    Autorzy:
    Straka, Robert
    Sharma, Keerti V.
    Powiązania:
    https://bibliotekanauki.pl/articles/29520238.pdf
    Data publikacji:
    2020
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    cascaded thermal lattice Boltzmann method
    high order analysis
    advection-diffusion equation
    equivalent finite difference equation
    Opis:
    We analyze higher order error terms in a modified partial differential equation of a cascaded lattice Boltzmann method (CLBM) for one conservation law – the advection-diffusion equation. To inspect the behavior of the error terms we derived an equivalent finite difference equation (EFDE), this approach is different from other techniques like the Chapman-Engskog expansion, equivalent partial differential equations or the Maxwell iteration used in the literature. The resulting EFDE is obtained from the recurrence formulas of the lattice Boltzmann equations for the CLBM and is subsequently analyzed by standard analytical techniques. We have found relations of the LBM parameters which could cancel some of the higher order terms, making the method more accurate. The detailed derivation of the EFDE and higher order terms’ pre-factors is the main result of this paper. The resulting explicit form of the error terms are derived and presented.
    Źródło:
    Computer Methods in Materials Science; 2020, 20, 4; 173-184
    2720-4081
    2720-3948
    Pojawia się w:
    Computer Methods in Materials Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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