Hydraulics II is a basic laboratory course for demonstration and application of the theoretical concepts introduced in Hydraulics I. It is an introductory course of Hydraulic Works and Groundwater Flow and Pollutant Transport of the next semester.

The course aims to present in practice the concepts of hydrometry of basic hydrological quantities in a wide range of applications (from measuring meteorological parameters such as rainfall, surface hydrology parameters such as river flow and groundwater hydrology such as aquifer level).

Experimental meaurements and their analysis serve to consolidate fundamental concepts and theories of both surface and groundwater hydrology.

Moreover, the course aims to raise the awareness of systematic recording of hydrological parameters and their importance in the management of water resources.

By the end of the course, the student has the necessary knowledge and skills to:

• Recall fundamental concepts of both surface and groundwater hydrology.
• Identify flow types in open channels, suitable gaiging equipment for measuring flow in rivers.
• Solve equations of open channel flow and determine the properties of hydraulic jump.
• Calculates the suitability of control cross-section and basic equations in underground hydraulics.
• Estimate flood peak discharge, key hydrogeological variables, and quantitative status of aquifers.

• Teamworks
• Retrieval, analysis and synthesis of data and information, using the necessary technologies

1. Intoduction in hydraulics

 Α. OPEN CHANNEL FLOW Module

1. Hydraulic jump and stilling basins
2. Specific energy-critical depth
3. Flow over rectangular, vee notch and broad crested weir

 Β. GROUNDWATER FLOW Module

1. Darcy Law – Demonstration of groundwater flow, calculation of hydraulic gradient and calculation of hydraulic conductivity
2. Demonstration of groundwater flow, and calculation of hydraulic conductivity in confined aquifer.

 C. HYDROMETRY Module

1. Hydrometry – Hydrology
2. Hydrometric networks – state of the art
3. Methods and equipment of flow measurements
4. Rating curves
5. Floods and flood peak discharge estimation
6. Hydraulic works and control cross-sections
7. Hydrometeorological measurements

Use of Information and Communication Technology

• Use of computer software.
• E-class support.
• Processing of time series datasets.

ΙΙ. Three individual projects-case studies, one per lab module (60%).

• Shen J (1960) Discharge characteristics of triangular-notch thin-plate weirs. Geological Survey water-supply paper; 1617-B Supt. of Docs, no.: I 19.13:1617-B
• Streeter V, Wylie EB (2000) Μηχανική Ρευστών – Εκδόσεις ΦΟΥΝΤΑΣ.
• Zachoval Ζ, Knéblová Μ, Roušar L, Rumann J, Šulc J (2014) Discharge coefficient of a rectangular sharp-edged broad-crested weir. Journal of Hydrology and Hydromechanics. Volume 62, Issue 2, Pages 145–149, ISSN (Print) 0042-790X, DOI: 10.2478/johh-2014-0014, April 2014
• Κατσιφαράκης Κ (2009) Μόνιμες ροές με ελεύθερη επιφάνεια. ISBN 960-8183-77-4.