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1
Content available remote Prognoza obniżenia poziomu wód podziemnych pionowym drenażem
EN
Mathematical model groundwater level lawering in aquifer located between two lawpermeable layers due to vertical drainage system is presented. In order to determine the distributions of water heads calculations were performed for three modes of subsoil configuration.
2
Content available remote Przepływ w szczelinach anizotropowego ośrodka porowatego
EN
Flow in trapezoidal crack of anizotropic porous media is analysed. Flow modelling is based on Dupuite law assuming two-dimensional situation. A new equations for calculation of water discharge in open crack are proposed.
3
Content available remote Matematyczny model nawodnień powierzchniowych
EN
Nonlinear differential equations (hyperbolic type) was applied to describe the optimalization approach of basin irrigation system. The proper boundary conditions were assumed. The water flow in dry penncable subsoil was determined. The calculation results for embankment canals agree well with observations.
4
Content available remote Analityczny model podniesienia poziomu wód gruntowych w wyniku nawadniania
EN
Analytical model of groundwater level rice due to irrigation was presented. The proposed formulas allow to determine the depth of groundwater level for given time intervals.
5
Content available remote Analityczny model obniżania się wzniesienia wód gruntowych po nawodnieniu
EN
Analytical model of groundwater level lowering after the end of irrigation was described. According to the model proposed the rate of water lowering can be determined. The model was applied for analysis of groundwater flow in subsoil consisted of two layers: permeable and impermeable.
6
Content available remote Określenie funkcji dobiegania wody przy nawadnianiu bruzdowym
EN
Analytical solution for estimation of function in irrigation system in presented. Infiltration process was described using integral equation and depending on the infiltration function different solutions were obtained.
7
Content available remote Dynamika zasolenia warstw gleby przy uwzględnieniu parowania
EN
Analytical model of top soil salenization with taken into account evaporation is proposed. Mathematical solution of this problem allow to determine an sald concentration in soil water.
8
Content available remote Wyznaczenie wydatku szczeliny pionowego drenażu
EN
In this paper an analytical model of groundwater flow to vertical drainage is described. As a results of calculations the formulae for estimation of water discharge was proposed.
9
Content available remote Określenie optymalnych warunków nawodnienia stokowego
EN
Infliltration process is usually described using unsteady model of water flow in unsaturated porous media. The paper presents mathematical analysis of infiltration process during irrigation of surface soils. The analysis alow to estimate the optimal condition for border irrigation system.
10
Content available remote Analityczny model dopływu wód podziemnych do szczeliny pionowego drenażu
EN
Analitical model of grundwater discharge in two layer medium has been considered. Formulas for drain discharge, pressure in the two layers and lowering of groundwater level have been found.
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