DOWNLOAD CCHE2D MESH GENERATOR

Basically, four steps are needed to generate an algebraic mesh. Internal hydraulic structures, such as dams, gates and weirs, can be formulated and simulated synchronously with the flow. Npmax is the maximum number of points of the cross section in the original database. Note that only the internal nodes can be moved. The user needs to adjust the stretching parameters for each subsection. Because block 2 has a dike, it is recommended to begin with this block. For each of the hydraulic structures, the format is different.

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These processes are solved with the depth integrated Reynolds equations, mass transport equations, sediment sorting equation, bed load and bed deformation equations.

Structured Database If the structured cchd2d database is available, in order to improve the accuracy of the interpolation, a refined-database is created considering that channel thalweg should be connected. F, and Johnson, B.

Xdown Ydown Xup Yup 4th pair of control points The three non-negative parameters, orthogonality, smoothness, and adaptivity, need to be evaluated before computing. Related manuals Cirkuit Planet Yup - Yup.

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Xdown Ydown Xup Yup ccje2d pair of control points Tab Parameters of each part Part-1 Part-2 N. The straight dike must have only two pairs of control points, otherwise it will be treated as an island. In practice, the algebraic method, numerical method and multi-block method are used in combination to take the advantage of each other.

At the end of this process, the refined database will be saved. Hold the left button of the mouse and move the node to the desired location.

The Laplacian smoothing scheme is applied to smooth mesh. The stretching function is used to distribute the mesh control lines along the boundaries. Step-3 Specify the control points for the first block.

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Each GUI provides a convenient environment for input data preparation and model operation. Numerical solutions can be computed based on discretized equations, and the discretization is dependent on the mesh which approximates the entire irregular complicated domain.

The sediment transport module computes non-equilibrium transport of non-uniform sediment mixtures.

The process is composed of two steps: Equation shows the so-called one-direction stretching function. These groups of commands and parameters are introduced as follows.

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As a result, smoothing methods are often applied to optimize the mesh. This group provides the operations to create a structured multi-block boundary.

Distribute the mesh control lines along the top and bottom boundaries Fig Congress, with a mandate to develop state-of-the-art numerical models for simulating flow and sedimentation processes in the natural environment.

First, evaluate the mesh size: Yaoxin Zhang, a Ph.

The procedure to search these surrounding points is shown in Fig Save dche2d mesh as. Five colors have already been assigned to these five cross sections.

Downloads – National Center for Computational Hydroscience and Engineering

For more information, please contact us via email at web ncche. As for the structured survey data, such as those measured section by section along a channel, a refined-database method due to thalweg is applied. Note that the changes are stored only into the memory, not the file. Trial versions of both of these models, as ccye2d as details on the availability and pricing for the models and modules, can be found at: The GUI drives and manages simulations, it is a user friendly tool.

Chapter 3 Inteface of CCHE Mesh Generator CCHE Mesh Generator 35 Fig Specify control points on bottom boundary of the first block 7 Make sure all the parameters of the first block specified and then move onto the next block Step-4 Specify the control points for the second block and note an island is required cchw2d added into this block.

Generate the mesh for block 2.