PPT-Evaluation of pond/aquifer flow exchanges using local discretization and contrasting different

Case of Santa Olalla pond SW Spain SerranoHidalgo C HerediaDíaz J GuardiolaAlbert C and ElorzaTenreiro FJ METODOLOGY T o identify the adequate numerical representation of the lagoon using a finer spatial discretization. Groundwater Hydraulics. Daene C. McKinney. Summary. Confined Aquifer Flow. Continuity Equation. Steady Horizontal Flow. Transmissivity. Unconfined Aquifer Flow. Continuity Equation. Steady Horizontal Flow. Hydraulic Head. Bernoulli’s Equation. Hydrostatic Pressure. Hydraulic Head. Bernoulli’s Equation. Hydrostatic Pressure. Hydraulic Head. Total Hydraulic Head (drop velocity – why?). . Or. Hydrogeology. Module 4. Flow to Wells. Preliminaries, Radial Flow and Well Function. Non-dimensional . Variables, . Theis. “Type” curve, and Cooper-Jacob Analysis. Aquifer boundaries, Recharge, . Hydrogeology. Module 4. Flow to Wells. Preliminaries, Radial Flow and Well Function. Non-dimensional . Variables, . Theis. “Type” curve, and Cooper-Jacob Analysis. Aquifer boundaries, Recharge, . Hydrogeology. Instructor: Michael Brown. brown@ess.washington.edu. Module 4. Flow to Wells. Preliminaries, Radial Flow and Well Function. Non-dimensional . Variables, . Theis. “Type” curve, and Cooper-Jacob Analysis. Groundwater Hydraulics. Daene C. McKinney. Summary. Confined Aquifer Flow. Continuity Equation. Steady Horizontal Flow. Transmissivity. Unconfined Aquifer Flow. Continuity Equation. Steady Horizontal Flow. Basic Assumptions. Aquifer bounded on the bottom. Horizontal Geologic Formations (with infinite extent). The potentiometric surface is horizontal and is steady prior to pumping. Any changes in potentiometric surfaces are due to pumping . Groundwater Hydraulics. Daene C. McKinney. 1. Course Objectives . Introduction to groundwater, including: . Groundwater in the hydrologic cycle . Characteristics of porous media. Darcy's law of flow in porous media. From Mays, 2011, Ground and Surface Water Hydrology. If the distance and the observed . piezometric. surface drop between two adjacent wells are 1000 m and 3 m respectively, find an estimate of the time it takes for a molecule of water to move from one well to the other. K is 3.5 m/day and effective porosity is 0.35 . Daene C. McKinney. 1. Course Objectives . Introduction to groundwater, including: . Groundwater in the hydrologic cycle . Characteristics of porous media. Darcy's law of flow in porous media. Continuity principles. Groundwater Hydraulics. Daene C. McKinney. 1. Summary. Some Information on . Wells. Steady flow to a well in a confined aquifer. 2. Some Information on Wells. 3. Domestic Hand Pumped Well. Domestic dug well with rock curb, concrete seal, and hand pump. Flow in Aquifers – 2 Unconfined Aquifer Flow Groundwater Hydraulics Daene C. McKinney 1 Summary Unconfined Aquifer Flow Continuity Equation Steady Horizontal Flow Steady Horizontal Flow with Infiltration Not all water that falls will reach the water table. Infiltration Capacity. is measure of a soils capacity to absorb water. Highly variable – soil type, but also the same soil varies depending on current moisture content. A confined aquifer with a porosity of 0.18 is 25 m thick. The potentiometric surface elevations at observation wells 800 m apart are 42.8 m and 47.3 m. If the hydraulic conductivity is 15 m/day determine:.