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Friday, July 31, 2020 | History

2 edition of High-resolution finite volume methods for hydraulic flow modelling. found in the catalog.

High-resolution finite volume methods for hydraulic flow modelling.

Keming Hu

High-resolution finite volume methods for hydraulic flow modelling.

by Keming Hu

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  • 1 Currently reading

Published .
Written in English


Edition Notes

ContributionsManchester Metropolitan University. Department of Computing and Mathematics.
ID Numbers
Open LibraryOL21339707M

  Multidimensional slope limiters for MUSCL-Type finite volume schemes on unstructured grids. d, Journal of Computational Physics, Vol, pp, Calculation of unsteady bore diffraction using a high resolution finite volume method. m, Journal of Hydraulic Research, IAHR, Vol, pp, Upwind and high-resolution methods for compressible flow: From Donor cell to residual distribution schemes. Computer Physics Communications, 1 (2), – zbMATH Google Scholar Vazquez-Cendón, M. E. ().

of finite-difference, finite-element and finite-volume methods, treatment of the so-called “cell Reynolds number problem” and introduction to “checkerboarding” associated with velocity-pressure decoupling. An understanding of these subjects, along with competence in the numerical analysis of PDEs (a prerequisite. Adaptive finite volume methods with well-balanced Riemann solvers for modeling floods in rugged terrain: Application to the Malpasset dam-break flood (France, ) D. L. George 4 March | International Journal for Numerical Methods in Fluids, Vol. 66, No. 8.

OSU Rivers: OSU Rivers is intended for the intelligent control of complex regulated river systems, such as those that have multiple reservoirs, have multiple objectives and in which the flow dynamics of the system is of particular interest. Code for modeling the development, propagation, coalescence and release of air pockets in pipelines (, Finite volume method & . “The book is very attractive, carefully written and easy to read by those interested in learning about finite volume methods for fluid dynamics. The authors have made an important effort to bridge the gap between classroom material and actual model development s: 5.


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High-resolution finite volume methods for hydraulic flow modelling by Keming Hu Download PDF EPUB FB2

Microfluidics: Modeling, Mechanics and Mathematics A volume in Micro and Nano Technologies. Book • Chapter 31 - Finite Volume Method. Pages Select Chapter 32 - Finite Element Method.

Book chapter Full text access. this book supplies. The finite volume method (FVM) is a method for representing and evaluating partial differential equations in the form of algebraic equations. In the finite volume method, volume integrals in a partial differential equation that contain a divergence term are converted to surface integrals, using the divergence terms are then evaluated as fluxes at the surfaces of each finite volume.

A finite-volume implementation on a boundary conforming mesh is chosen to more accurately map the complex geometries that will occur in practice.

These features enable the model to deal with dam break phenomena involving flow discontinuities, Cited by: This study aims to develop a robust, accurate, and computationally efficient numerical model for dam-break flows.

The model is based on the finite volume method on an unstructured triangular grid. The intercell flux is computed by the HLL approximate. NUMERICAL ERRORS OF TSUNAMI SIMULATION BY FINITE VOLUME METHODS ON UNSTRUCTURED TRIANGULAR MESH AND EFFICIENCY OF ADAPTIVE MESH REFINEMENT TECHNIQUE.

Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering), Vol. 70, Issue. 4, p. I_Cited by:   BreZo is a hydraulic model which solves the 2D shallow-water equation using Godunov-type finite volume method with an unstructured grid of triangular cells.

A detailed description of the model can be seen in Begnudelli and Sanders (). One of the primary advances of the model is that it was designed for working with an unstructured grid of.

[1] This study presents a finite volume hydrodynamic model for shallow water flow that computes on a coarse grid, but accounts for high‐resolution bathymetry and roughness variations on a subgrid.

The detailed information can be incorporated by using the assumption of a uniform flow direction and a uniform friction slope within a part of a coarse‐grid cell. The base framework of the discrete model uses Godunov methods on unstructured triangular grids, but the solution technique emphasizes the use of a high-resolution Riemann solver where needed, switching to a simpler and computationally more efficient upwind finite volume technique in the smooth regions of the flow.

RiverFlow2D is the most advanced two-dimensional combined hydraulic and hydrologic flexible-mesh model, offering a high-performance finite-volume engine for speedy, accurate, and volume conservative computations in all river and estuary can tackle the most demanding flood modeling situations including dam-break and levee-break simulations over.

() A Godunov-type finite volume method for the system of Shallow water equations. Computer Methods in Applied Mechanics and Engineering() A simplified model for linear and nonlinear processes in thermoacoustic prime movers.

The analytic element method (AEM) is a numerical method used for the solution of partial differential equations. It was initially developed by O.D.L. Strack at the University of is similar in nature to the boundary element method (BEM), as it does not rely upon discretization of volumes or areas in the modeled system; only internal and external boundaries are discretized.

A 2D, depth‐integrated, free surface flow solver for the shallow water equations is developed and tested. The solver is implemented on unstructured triangular meshes and the solution methodology is based upon a Godunov‐type second‐order upwind finite volume formulation, whereby the inviscid fluxes of the system of equations are obtained using Roe's flux function.

This method is well-explained in the book: Numerical Heat Transfer by Suhas V. Patankar (Hemisphere Publishing,ISBN ). Almost all of the commercial finite volume CFD codes use this method and the 2 most popular finite element CFD codes do as well.

Albeit it is a special application of the method for finite elements. The 3-D unstructured-grid, Finite-Volume Coastal Ocean Model (FVCOM) was used to simulate the flows in Discovery Passage including the adjoining Lower Campbell River, British Columbia, Canada.

Challenges in the studies include the strong tidal currents (e.g., up to m/s in Seymour Narrows) and tailrace discharges, small-scale topographic features and steep bottom slopes. The finite-volume method is similar to the finite-element method in that the CAD model is first divided into very small but finite-sized elements of geometrically simple shapes.

Apart from this. Pramote Dechaumphai's 45 research works with citations and 3, reads, including: Development of DKT Finite Element Formulation for Thermal Bending of Thin Plate. A new modeling component is developed and fully coupled to a finite volume Godunov-type shock-capturing shallow water model, to directly simulate the highly transient flood waves through hydraulic structures.

Different coupling approaches, i.e., flux term coupling and source term coupling, are implemented and compared. High Resolution Integrated Weather-Flood Modelling Framework IBM Research Team: Ulisses Mello, Lucas Villa Real, Vaibhav Saxena, Thomas George, Rashmi Mittal, Upwind-biased Finite volume method.

Hydraulic Modelling. The scheme is compared to the finite volume scheme of Roe (), to the simple inertia formulation, and to the diffusive wave model. The test cases show that the DHD scheme is able to compute subcritical and supercritical flows in rural and urban environments, and that in overland flow applications it gives similar results to the second.

Hydraulic fracturing is widely used in the exploitation of unconventional gas (such as shale gas).Thus, the study of hydraulic fracturing is of particular importance for petroleum industry.

The combined finite-discrete element method (FDEM) proposed by Munjiza is an innovative numerical technique to capture progressive damage and failure processes in rock. However, it cannot model. Abstract The finite‐volume technique is used to solve the two‐dimensional shallow‐water equations on unstructured mesh consisting of quadrilateral elements.

In this paper the algorithm of. () Calculation of unsteady bore diffraction using a high resolution finite volume method. Journal of Hydraulic Research() An adaptive Riemann solver using a two-shock approximation.[9] Presented explicit and implicit finite volume method schemes of the Roe type to model extreme unsteady, rapidly varied, open channel surface flow described by the SV equations.