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Apr 16, 2004· Recent advances in dense, multiphase, computational fluid dynamics (CFD) have allowed accurate simulation of the gas and particle motion in bubbling and circulating fluidized beds. Since fluidized‐bed reactors are used for many chemical processes, a simulation must also be able to accurately couple chemical reactions to bed hydrodynamics.

A ladle-tundish-mould transportation model considering the entire multiple pouring (MP) process is proposed. Numerical simulation is carried out to study the carbon distribution and variation in ...

Jan 08, 2016· Computational Fluid Dynamics Simulations of A Laboratory Flash Reactor Relevant to A Novel Ironmaking Process (Pages: 11-18) Deqiu Fan; Yousef Mohassab ... Numerical Study and Experimental Validation of Multiple Pouring Process in A 438‐t Steel Ingot (Pages: 203-211) ... Numerical Simulation of Effect of Different Electrodes on Magnetic Force ...

A novel explicit finite-difference (FD) method is presented to simulate the positive and bounded development process of a microbial colony subjected to a substrate of nutrients, which is governed by a nonlinear parabolic partial differential equations (PDE) system. Our explicit FD scheme is uniquely designed in such a way that it transfers the nonlinear terms in the original PDE into discrete ...

(1997) Numerical simulation of two- and three-dimensional complex flows of viscoelastic fluids using the stream-tube method. Mathematics and Computers in Simulation 44 :4, 387-400. (1997) A potential reduction approach to the frequency assignment problem.

6.3 Line Object 91 6.4 Workers 94 PART B: ADVANCED SIMULATION MODELLING 97 7 BUILDING A MODEL: CAR MANUFACTURER 98 7.1 Setup of the Car Manufacturer 98 7.2 Frames as Building Blocks 99 7.3 Source and Drain 108 7.4 Processing Stations 110 7.5 Production Plan 111 7.6 Debugging 114 7.7 Machine Failures 123 7.8 State dependent Icons 126 7.9 Assignment B1: Object-Oriented …

The numerical simulation of the system without control was done with Matlab in Section 4.1. For our numerical solution of the optimal control problem, we have used the ACADO solver [ 28 ], which is based on a multiple shooting method, including automatic differentiation and based ultimately on the semidirect multiple shooting algorithm of Bock ...

Numerical simulation on multiple pouring process for a 292 t steel ingot ... process is proposed. Numerical simulation is carried out to study the carbon distribution and variation in both the ...

Jan 01, 2014· FEM-coupled analysis capabilities can be easily coupled to multiple physical fields to simulate the real situation of pouring. First, there is a general thermal analysis of the physical field, followed by structural stress analysis during the process. 5. Finite element numerical example of mass concrete pouring 5.1. Description of the problem

The first phase of simulation occurs when the system’s model is open and you simulate the model. In the Simulink ® Editor, click Run. Running the simulation causes the Simulink engine to invoke the model compiler. The model compiler converts the model to an executable form, a process called compilation.

Dec 22, 2015· Hence, the DEM/SDF model is newly validated for a die filling system. These results indicate that the use of the DEM/SDF model is an effective approach of modeling real and complex die shapes in numerical simulation. The DEM/SDF model thus opens a door for numerical simulation in the design of die filling. 2. Numerical modeling 2.1.

This module creates a histogram of a specified distribution as well as a numerical summary of simulated data. By studying the histogram and the numerical summary, you can determine if the distribution has the characteri stics you desire. The distribution formula can then be used in procedures that use simulation, such as the new t-test procedures.

Sep 18, 2017· Intended to be an advanced level textbook for numerical methods, simulation and analysis of process systems and computational programming lab, it covers following key points • Comprehensive coverage of numerical analyses based on MATLAB for chemical process examples. • Includes analysis of transient behavior of chemical processes.

In present paper, a ladle-tundish-mold CFD model and a macrosegregation model were utilized to investigate the effects of the multiple pouring (MP) process on the macrosegregation in a 438-ton ...

Jan 01, 2014· Numerical simulation on multiple pouring process for a 292 t steel ingot Article (PDF Available) in China foundry 11(1):52-58 · January 2014 with 95 Reads How we measure 'reads'

Numerical investigation of cavitation-regimes in a converging-diverging nozzle 1Polina Gorkh, 1Steffen J. Schmidt, and 1Nikolaus A. Adams 1Institute of Aerodynamics and Fluid Mechanics, Department of Mechanical Engineering, Technical University of Munich Abstract In the present study the authors analyze cavitation dynamics, instabilities and detachment mechanisms in an

Jul 13, 2006· (1997) Recent advances and trends in numerical techniques for process simulation. Microelectronics Reliability 37 :9, 1329-1339. (1997) Solution of Evolutionary Partial Differential Equations Using Adaptive Finite Differences with Pseudospectral Post-processing.

Duan Z., Shen H., Kang J., Liu B. (2016) Numerical Study and Experimental Validation of Multiple Pouring Process in a 438-t Steel Ingot. In: Nastac L. et al. (eds) CFD Modeling and Simulation in Materials Processing 2016.

Jul 25, 2006· Communications in Nonlinear Science and Numerical Simulation 84, 105160. (2020) On finite difference schemes for partial integro-differential equations of Lévy type. Journal of Computational and Applied Mathematics 368 , 112587.

A ladle-tundish-mould transportation model considering the entire multiple pouring (MP) process is proposed. Numerical simulation is carried out to study the carbon distribution and variation in both the tundish and the mould for making a 292 t steel ingot.

In this paper, a numerical scheme is provided to predict and approximate the multiple solutions for the problem of heat transfer through a straight rectangular fin with… pdf (768 KB) Phase-field modeling of multicomponent and multiphase flows in microfluidic systems: a review

Oct 06, 2020· Therefore, it is extremely time-consuming and costly to optimize the CVI process based on repeated real-world testing, necessitating a reliable full-scale predictive CVI process model. Li and his colleagues developed a numerical model implemented with a multiple reaction network for the simulation of a CVI process [, , ].

Numerical simulation is carried out to study the carbon distribution and variation in both the tundish and the mould for making a 292 t steel ingot. Firstly, the fluid flow as well as the heat and mass transfer of the molten steel in the tundish is simulated based on the multiphase transient turbulence model.

The need for decision support after a flooding casualty requires the development of fast and accurate progressive flooding simulation procedures. Here, a new quasi-static technique is presented, proposing a differential algebraic formulation capable to consider independently the flooding process in the internal rooms. The proposed method is efficient while simulating long flooding chains along ...

The direct numerical solution of this problem by a finite-element method requires special edge elements. The aim of the present paper is to give an equivalent formulation of the problem well suited for both easy theoretical investigation and numerical implementation.

Dec 20, 2019· Subsequently, a numerical model that couples the mass transport and electrochemical corrosion process was established to simulate the transport of chloride ions and the evolution of steel corrosion that occurred simultaneously in the concrete.

Introduction to Simulation Using R A. Rakhshan and H. Pishro-Nik 13.1 Analysis versus Computer Simulation A computer simulation is a computer program which attempts to represent the real world based on a model. The accuracy of the simulation depends on the precision of the model. Suppose that the probability of heads in a coin toss experiment ...

Lecture notes. LEC # TOPICS; 1: Example Problems and Basic Equations (Courtesy of Deepak Ramaswamy, Michal Rewienski, Luca Daniel, Shihhsien Kuo, and Karen Veroy.)2: Equation Formulation Methods - Stamping Techniques, Nodal versus Node-Branch Form (Courtesy of Deepak Ramaswamy, Michal Rewienski, and Karen Veroy.)3

Numerical simulation. There are many numerical methods used for simulation of engineering problems, among which the finite difference method (FDM) and the finite element method (FEM) are the most commonly used. ... Simulation with SORPAS® is a virtual resistance welding process on a computer, where the whole process, from design to welding, is ...

work in process (i.e. number of customers/jobs in the system). This relationship has been shown to be valid for a wide class of queuing models. The theorem states that the expected number of customers (N) for a system in steady state can be determined using the following equation: (1) Here, λ is the average customer arrival rate and T is the

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