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Showing 1 to 10 of 10 for “"fourth order Runge-Kutta method"”.
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A numerical study of wave propagation in poroelastic media by use of the localized differential quadrature (LDQ) method
… and the localized differential quadrature (LDQ) method are introduced. Using this LDQ method, the governing equations can be solved together with fourth-order Runge-Kutta method. Second, wave propagations in one-dimensional poroelastic media are investigated. The numerical results are compared …
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Método dos elementos de contorno aplicado a propagação de ondas gravitacionais não lineares
This work presents a boundary element method formulation in two-dimensions, to be applied either to moving boundary problems, or to problems with non moving boundaries. Isoparametric quadratic elements have been implemented to discretize the boudary. The procedure developed for non moving boundary …
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Fitted numerical methods for delay differential equations arising in biology
Fitted Numerical Methods for Delay Di erential Equations Arising in Biology E.B.M. Bashier PhD thesis, Department of Mathematics and Applied Mathematics,Faculty of Natural Sciences, University of the Western Cape. This thesis deals with the design and analysis of tted numerical methods for some …
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Mechanics of Sandbag Motion In Free-Surface Flow
… velocity of different sandbags are summarized. A methodology is outlined to estimate the drag and added-mass coefficients of sandbag-shaped particles by solving an equation describing the motion of a sandbag in stationary fluid. In addition, the effects of porosity and permeability of the sandbags …
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Numerical Modelling of Sediment Delivery from Tidewater Glaciers to the Marine Environment
… solved numerically using an adaptive stepsize fourth-order Runge-Kutta method. When the plume reaches the surface, it is treated as a radially spreading surface gravity current, for which exact solutions exist for the mass flux of sediment deposited. A case study is examined for each model. The …
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Classical, quantum and numerical aspects of modified theories of gravity
… for each theory is derived and diagonalised in order to construct ghost-free infinite-derivative modifications. In the case of the SRG theory, we make use of the Schwarzschild-type gauge whereas, for the CGHS theory, we impose the conformal gauge. For each of the two local theories, we construct …
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Thermal treatment of organic contaminated solids and waste : experiment, model and mass balance
… of gas and soil are calculated using the fourth order Runge-Kutta method. Evaporation rates of moisture and organic contaminants derived by Wendt et al. is applied for the mass balance calculation. A comparison of modeling results with experimental data for gas and soil temperature …
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An investigation into the parameters affecting the performance of tube mills : the behaviour of a single particle on a corrugated liner inside a rotating cylinder
… corrugated liner are solved numerically using a Fourth-Order Runge-Kutta Method. The theoretical predictions of the motion of a block on a corrugated liner are presented - and discussed. The model for a sphere on a corrugated liner was derived but no attempt was made to solve it numerically. It …
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Simulation of nonisothermal and time-dependent viscoelastic flows
… has lead to the development of many numerical methods for the simulation of viscoelastic flows. The two main obstacles to the use of these tools in the quantitative analysis of polymer processing operations are the need for accurate constitutive equations and the computational efficiency of the …
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Zero-Dimensional Model for the Dense Plasma Focus
Made available in DSpace on 2017-07-06T18:55:14Z (GMT). No. of bitstreams: 3 Mandrekas_John_MS.pdf: 18884530 bytes, checksum: e49912e6269144f16063c50d0f2085f5 (MD5) Mandrekas_John_MS_ABS.pdf: 400736 bytes, checksum: 4618fd922638eb6b094730a6a3b57b6e (MD5) license.txt: 4813 bytes, checksum: …