A numerical simulation has been performed to investigate planar and radial #ows of thin liquid "lm subject to constant wall temperature or constant wall heat #ux, considering the surface tension e!ect. To simulate the variation of the "lm height including a hydraulic jump, an Arbitrary Lagrangian}Eu
Simulation of water flow and heat transfer in soils by means of a mixed finite element method
โ Scribed by L.M. Chounet; D. Hilhorst; C. Jouron; Y. Kelanemer; P. Nicolas
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 833 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0309-1708
No coin nor oath required. For personal study only.
โฆ Synopsis
We develop numerical methods for the simulation of heat and mass transfer in the ground. We use the mixed finite element method for the computation of both the liquid pressure and the temperature, so that the mass is locally and globally well conserved and the computation of the fluid velocity is very accurate. This is quite important since this fluid velocity appears in the first-order term of the equation for the temperature; in turn the partially hyperbolic character of the equation for the temperature is well taken into account since we use the modified method of characteristics for its discretization.
๐ SIMILAR VOLUMES
## Abstract We present a new numerical scheme for the approximation of solutions of transient water infiltration problems in heterogeneous soils. The twoโphase (water and air) flow problem is governed by a pressureโvelocity equation coupled to a saturation equation. The numerical scheme combines a
Finite element simulation of transient laminar ยฏow past an in-line tube bank is carried out using a velocity correction procedure. The two-dimensional unsteady NavierยฑStokes and energy equations are solved using an explicit and a semi-implicit algorithm for a Reynolds number of 100, a Prandtl number
The purpose of the present numerical method is to simulate the flow in between two concentric cylinders of finite axial length. The numerical integration of the transient three-dimensional incompressible Navier-Stokes equations is performed by a Legendre spectral element method in space while the ti