A Three-Field Diffusion Model of Three-Phase, Three-Component Flow for the Transient Three-Dimensional Computer Code IVA2/001
| Autor: | Nicolay Ivanov Kolev |
|---|---|
| Rok vydání: | 1987 |
| Předmět: |
Physics
Nuclear and High Energy Physics 020209 energy Numerical analysis Multiphase flow Non-equilibrium thermodynamics Fluid mechanics 02 engineering and technology Mechanics Condensed Matter Physics 020303 mechanical engineering & transports 0203 mechanical engineering Nuclear Energy and Engineering Flow velocity 0202 electrical engineering electronic engineering information engineering Fluid dynamics Vector field Two-phase flow Statistical physics |
| Zdroj: | Nuclear Technology. 78:95-131 |
| ISSN: | 1943-7471 0029-5450 |
| DOI: | 10.13182/nt87-a33990 |
| Popis: | IVA2/001 is a computer code for simulating transient, three-dimensional, three-phase, three-component nonhomogeneous (three velocity fields), nonequilibrium flow in a cylindrical porous body (including nuclear reactor cores if desired). Each velocity field consists of an inert and a noninert component. A separated equation of field mass, inert mass concentration in each of the fields, and entropy of the fields together with mixture momentum equations for the flow are solved by a semi-implicit numerical method with an analytical reduction to the pressure or pressure velocity problem and backward substitution. The flexibility of the method in describing three velocity fields of arbitrary direction is demonstrated. The solution procedure of the hydrodynamic problem is described. Finally, a numerical example and a comparison with experimental data demonstrate that the IVA2 method is a powerful tool for numerical multiphase flow simulation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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