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  2. Hydrological model - Wikipedia

    en.wikipedia.org/wiki/Hydrological_model

    A hydrologic model is a simplification of a real-world system (e.g., surface water, soil water, wetland, groundwater, estuary) that aids in understanding, predicting, and managing water resources. Both the flow and quality of water are commonly studied using hydrologic models.

  3. Water cycle - Wikipedia

    en.wikipedia.org/wiki/Water_cycle

    The diagram also shows how human water use impacts where water is stored and how it moves. [1] The water cycle (or hydrologic cycle or hydrological cycle) is a biogeochemical cycle that involves the continuous movement of water on, above and below the surface of the Earth. The mass of water on Earth remains fairly constant over time.

  4. Fluid dynamics - Wikipedia

    en.wikipedia.org/wiki/Fluid_dynamics

    A flow that is not a function of time is called steady flow. Steady-state flow refers to the condition where the fluid properties at a point in the system do not change over time. Time dependent flow is known as unsteady (also called transient [8]). Whether a particular flow is steady or unsteady, can depend on the chosen frame of reference.

  5. Darcy's law - Wikipedia

    en.wikipedia.org/wiki/Darcy's_law

    Diagram showing definitions and directions for Darcy's law. A is the cross sectional area (m 2) of the cylinder. Q is the flow rate (m 3 /s) of the fluid flowing through the area A. The flux of fluid through A is q = Q/A. L is the length of the cylinder. Δp = p outlet - p inlet = p b - p a.

  6. Flow diagram - Wikipedia

    en.wikipedia.org/wiki/Flow_diagram

    Example of a flow diagram of a nuclear submarine propulsion system. Flow diagram is a diagram representing a flow or set of dynamic relationships in a system. The term flow diagram is also used as a synonym for flowchart, [1] and sometimes as a counterpart of the flowchart. [2]

  7. Water supply network - Wikipedia

    en.wikipedia.org/wiki/Water_supply_network

    A water supply network or water supply system is a system of engineered hydrologic and hydraulic components that provide water supply. A water supply system typically includes the following: A water supply system typically includes the following:

  8. Outline of water - Wikipedia

    en.wikipedia.org/wiki/Outline_of_water

    An example of a Reservoir, Ladybower Reservoir. Water supply – Provision of water by public utilities, commercial organisations or others Water supply network – System of engineered hydrologic and hydraulic components providing water Reservoir – Storage space for water

  9. Flow net - Wikipedia

    en.wikipedia.org/wiki/Flow_net

    The method consists of filling the flow area with stream and equipotential lines, which are everywhere perpendicular to each other, making a curvilinear grid.Typically there are two surfaces (boundaries) which are at constant values of potential or hydraulic head (upstream and downstream ends), and the other surfaces are no-flow boundaries (i.e., impermeable; for example the bottom of the dam ...