Temat: multi-physics model - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Fully coupled multi-physics modeling of the multi-type magnetic particles dynamic behavior in low intensity magnetic separator
Autorzy:: Wang, Feiwang
Zhao, Hongming
Dai, Huixin
Du, Wuxing
Powiązania:: https://bibliotekanauki.pl/articles/109730.pdf
Data publikacji:: 2019
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: multi-physics model
low-intensity magnetic separator
magnetic particles
dynamic behaviour
Opis:: Studying the dynamic behavior of magnetic particle suspensions in the low intensity magnetic separator has important implications for various mineral beneficiation processes. A new approach for fully coupled multi-physics modeling of the dynamic behavior of multi-type magnetic particles (MTMPs) is developed in the study. In this model, the particle tracing module is employed to identify and determine individual particle trajectories in the fluid and magnetic field, which are modelled through the COMSOL Multiphysics. The results show that the different arrangements of the permanent magnet assembly and the volume percentage of interlocked particles affect the dynamic behavior of MTMPs and the efficiency of the separation. The model is compared with experiments and the particle capture theory and the correctness of the solution obtained from COMSOL is demonstrated. The model gives new possibilities to control, optimise, and develop the process of LIMS.
Źródło:: Physicochemical Problems of Mineral Processing; 2019, 55, 1; 163-172
1643-1049
2084-4735
Pojawia się w:: Physicochemical Problems of Mineral Processing
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Dynamic response analysis of light weight pyramidal sandwich plates subjected to water impact
Autorzy:: Wang, Hao
Zhao,, Fei
Liu, Jun
Tian, Yuan
Powiązania:: https://bibliotekanauki.pl/articles/259878.pdf
Data publikacji:: 2012
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: light weight pyramidal sandwich plate structures (LWPSPS)
multi-physics numerical model
maximum deformation
quasi-static
local air cushion
Yuan-Sheng Cheng
Opis:: The fluid-solid interaction (FSI) dynamic responses for a Light Weight Pyramidal Sandwich Plate Structure (LWPSPS) under different water-entry velocities (1m/s-6m/s) are investigated numerically and theoretically. The characteristics of impact pressure and structure deformation are obtained by using LS-DYNA code based on the proposed 3D multi-physics (air-water-solid) FEM model. Numerical results show that the average water impact pressure of LWPSPS is much lower than that of the monolithic plate with same mass. Moreover, a phenomenon called “local air cushion” is observed for LWPSPS which does not exist for a monolithic plate. Theoretical hydroelasticity analysis demonstrates that the FSI effect of LWPSPS is weak when the ratio of water impact duration time to wet natural vibration period is greater than 4. In the study, an engineering estimation method to predict the maximum deformation of the LWPSPS is proposed, in which the total deformation is divided into two parts, i.e. local field deformation and global field deformation, and they are both computed using analytical model. Good agreement between the numerical results and ones obtained from the proposed engineering estimation method is achieved. Furthermore, the geometric variation sensitiveness analysis is also conducted.
Źródło:: Polish Maritime Research; 2012, 4; 31-43
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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