Receding Interval Prediction of District Heat Load via Finite Difference Multi-Operating-Domain Dynamic Modelling

2021 ◽  
pp. 111710
Author(s):  
Yang Hu ◽  
Ze Yang ◽  
Fang Fang
Keyword(s):  
Finite Difference ◽  
Heat Load ◽  
Dynamic Modelling ◽  
Interval Prediction

scholarly journals Dynamic modelling in slopes using finite difference program

1970 ◽  
Vol 12 ◽  
pp. 89-94 ◽  
Author(s):  
Subodh Dhakal
Keyword(s):  
Finite Difference ◽  
Shear Modulus ◽  
Dynamic Modelling ◽  
Horizontal Acceleration ◽  
Input Signals ◽  
Modulus Maximum ◽  
Relationship Of ◽  
The Relationship ◽  
Lower Slope ◽  
Maximum Amplification

The finite difference program FLAC is used for dynamic modelling of slopes whereby the relationship of the slope geometry, earthquake input signals (mainly frequency of the wave) and the material properties with amplification of vibration on the surface are investigated. At the same time, the influence of varying input frequencies is also investigated. The higher slopes were amplified most by the lower input frequency whereas the reverse was true for the smaller slopes. The overall magnitude of the amplification was maximum with input signals of higher frequency and lower slope heights. The horizontal amplification as much as 17 (horizontal acceleration in the order of 1.7g) was obtained for the normal limestone slope with 20 m height when an input signal of 15 Hz frequency was applied. This experiment revealed that for extremely lower values of shear modulus, there was mostly attenuation instead of amplification and for extremely high values of shear modulus, amplification was negligible as compared to the certain range of intermediate shear modulus. Maximum amplification in the order of 6.5 (horizontal acceleration of 0.66g) was achieved for the shear modulus of 3000 MPa where slope height was of 40 m.   doi: 10.3126/bdg.v12i0.2253 Bulletin of the Department of Geology, Vol. 12, 2009, pp. 88-94

Finite difference and finite element approaches to dynamic modelling of a flexible manipulator

1997 ◽  
Vol 211 (2) ◽  
pp. 145-156 ◽  
Author(s):  
M O Tokhi ◽  
Z Mohamed ◽  
A K M Azad
Keyword(s):  
Finite Element ◽  
Finite Difference ◽  
Computational Efficiency ◽  
Dynamic Modelling ◽  
Comparative Investigation ◽  
Flexible Manipulator ◽  
Dynamic Characterization ◽  
Finite Dimensional ◽  
Single Link

This paper presents a comparative investigation of the dynamic characterization of flexible manipulators on the basis of accuracy, computational efficiency and computational requirements using finite difference (FD) and finite element (FE) methods. A constrained planar single-link flexible manipulator is considered. Finite-dimensional simulations of the manipulator are developed using FD and FE methods. The simulation algorithms thus developed are implemented on two computing domains and their performances, on the basis of accuracy in characterizing the behaviour of the manipulator and computational efficiency, are assessed.

Computer Simulation of the Response of Amperometric Biosensors in Stirred and non Stirred Solution

2003 ◽  
Vol 8 (1) ◽  
pp. 3-18 ◽  
Author(s):  
R. Baronas ◽  
F. Ivanauskas ◽  
J. Kulys
Keyword(s):  
Mathematical Model ◽  
Computer Simulation ◽  
Finite Difference ◽  
Mass Transport ◽  
Enzyme Reaction ◽  
Analyte Concentration ◽  
Amperometric Biosensors ◽  
Finite Difference Technique ◽  
Enzyme Layer ◽  
Biosensor Response

A mathematical model of amperometric biosensors has been developed to simulate the biosensor response in stirred as well as non stirred solution. The model involves three regions: the enzyme layer where enzyme reaction as well as mass transport by diffusion takes place, a diffusion limiting region where only the diffusion takes place, and a convective region, where the analyte concentration is maintained constant. Using computer simulation the influence of the thickness of the enzyme layer as well the diffusion one on the biosensor response was investigated. The computer simulation was carried out using the finite difference technique.

Modelling of Moisture Movement in Wood during Outdoor Storage

2001 ◽  
Vol 6 (2) ◽  
pp. 3-14 ◽  
Author(s):  
R. Baronas ◽  
F. Ivanauskas ◽  
I. Juodeikienė ◽  
A. Kajalavičius
Keyword(s):  
Experimental Data ◽  
Finite Difference ◽  
Climatic Conditions ◽  
Two Dimensional ◽  
Moisture Movement ◽  
Finite Difference Technique ◽  
Long Term Storage ◽  
Space Formulation ◽  
Term Storage

A model of moisture movement in wood is presented in this paper in a two-dimensional-in-space formulation. The finite-difference technique has been used in order to obtain the solution of the problem. The model was applied to predict the moisture content in sawn boards from pine during long term storage under outdoor climatic conditions. The satisfactory agreement between the numerical solution and experimental data was obtained.

Sign in / Sign up

Export Citation Format

Share Document