Search results

Create the page "Suitable measures for FLOW-3D" on this wiki! See also the search results found.

• Vertical slot fishways
  ...ced in the FIThydro project! See [[Innovative technologies from FIThydro]] for a complete list.|reminder}} ...ogy than a unique recirculation zone flow topology (obtained when B/b <7). For different pool lengths, one can recommend keeping the same width / length r
  9 KB (1,440 words) - 10:40, 26 January 2021
• Bypass combined with other solutions
  ...of surface bypasses combined with conventional bar racks existing at HPPs for turbine protection (solution not too expensive and cumbersome). Most studie ...h to remain for a sufficiently long time in front of the bar rack in order for them to be guided to the bypass entrance.
  4 KB (667 words) - 15:01, 26 January 2021
• Sensory, behavioural barriers (electricity, light, sound, air-water curtains)
  ...e in terms of species and sizes. Fish may also be accustomed to deterrence measures over time, so that they get lower efficiency. *Electric screens (for more information: [[Fish Protection System (induced drift application)]])
  5 KB (663 words) - 10:02, 26 October 2020
• Hydropeaking indicator
  ...ced in the FIThydro project! See [[Innovative technologies from FIThydro]] for a complete list.|reminder}} ...march to mid-june); effect of the progressive implementation of mitigation measures since 2001 (source: [2]).]]
  5 KB (747 words) - 20:08, 27 September 2020
• COSH-tool
  ...ced in the FIThydro project! See [[Innovative technologies from FIThydro]] for a complete list.|reminder}} ...osh_tool_peaks_day.png|thumb|250px|Figure 4: Number of peak events per day for each year of the time series (click to expand)(source:SINTEF Energy Researc
  5 KB (703 words) - 13:03, 26 October 2020
• Current meter
  ...low cross-section with the verticals (in red) and the points (black dots) for velocity measurement with the current meter]] ...vertical depends on the water level. For example, only one point is needed for water level <20 cm at 60% of the water level. If there are only 2 measureme
  5 KB (716 words) - 16:08, 10 April 2020
• LiDAR
  ...als.png|thumb|250px|Figure 3: Discrete Echo and waveform signal comparison for Airborne Laser Scanning (https://commons.wikimedia.org/wiki/File:Airborne_L Lidar is a measurement technique that measures the distance from a georeferenced laser sensor to a ground target by illumi
  8 KB (1,122 words) - 14:27, 1 October 2020
• Mitigating rapid, short-term variations in flow (hydro-peaking operations)
  ...r system downstream the outlet of the hydropower plant, and iii) technical measures directly on the power plant/infrastructure, i.e. a technical setup that all The measures presented in the following are all related to changes in flow.
  5 KB (724 words) - 10:03, 26 October 2020
• Migration barrier removal
  ...y be maintained but also in power-regulated rivers there are possibilities for removing obstacles. In particular, smaller weirs have been removed in resid ...ions, assuring a stable bottom substrate and hydraulic conditions suitable for fish migrations
  4 KB (525 words) - 10:03, 26 October 2020
• Bedload monitoring system
  ...ped in the FIThydro project! See [[Innovative technologies from FIThydro]] for a complete list.|reminder}} In contrast to the SPGS, the steel tube is used as an impact plate for the BMS, and the sensors are mounted directly onto the outside of the steel
  7 KB (1,106 words) - 11:57, 30 September 2020
• Sediment sluicing
  ...es.png|thumb|250px|Figure 2: Seasonal operation of Three Georges reservoir for sluicing.]] ...flood and high-flow periods. Reservoir sluicing is not a measure designed for ecosystems living in regulated rivers. However, the supply of sediments ind
  5 KB (786 words) - 10:01, 26 October 2020
• Minimizing sediment arrival to reservoir
  ...nic eruptions) might affect significantly physical conditions and habitats for fish. Extreme sediments levels can also occur in rivers where hydropower re ...of sediments in water can be implemented to improve fish habitat quality. Measures consisting in reducing the amount of sediments entering the reservoir have
  5 KB (670 words) - 10:03, 26 October 2020
• Bottom-type intakes (Coanda screen, Lepine water intake, etc)
  ...ap). In that case, fish must be directed to a fish counter or storage pool for manual counting. Physical implementation of a Coanda screen requires heavy machinery suited for the river size and its surrounding terrain, such as excavators and lorries.
  5 KB (823 words) - 10:00, 26 October 2020
• Classification table
  ...lassification tables used for the various [[:category:solutions|mitigation measures]] | Fish species for the measure
  2 KB (328 words) - 13:10, 26 October 2020
• Off-channel reservoir storage
  Dams act as a barrier for sediment transport in river systems. Sediments-laden inflows bring sediment Off-channel reservoirs, like sediment bypasses, are measures which aim at routing bed-load and part of the suspended sediment load throu
  4 KB (563 words) - 10:03, 26 October 2020
• By-passing sediments
  Dams act as a barrier for sediment transport in river systems. Sediment-laden inflows transport sedim ...th concrete or hard natural stone materials such a sgranit are recommended for the invert protection of the sediment bypass tunnels (Müller-Hagmann et al
  6 KB (838 words) - 10:03, 26 October 2020
• Drawdown reservoir flushing
  Dams act as a barrier for sediment transport in river systems. Sediments-laden inflows transport sedi ...part of the capacity storage has been recovered. The favourable conditions for flushing are: reservoirs located in narrow valleys with steep slides, steep
  7 KB (1,127 words) - 10:03, 26 October 2020
• Mechanical removal of fine sediments (dredging)
  ...to the river bank and adapted movements around the removal site are simple measures to integrate to the overall planning of fine sediments dredging. The equipment for sediment removal is a pump. The capacity of the pump is determined by the a
  2 KB (373 words) - 10:03, 26 October 2020
• Sediment simulation in intakes with Multiblock option (SSIIM)
  =Relevant mitigation measures and test cases= {{Suitable measures for Sediment simulation in intakes with Multiblock option (SSIIM)}}
  3 KB (502 words) - 14:23, 1 June 2020

View (previous 20 | next 20) (20 | 50 | 100 | 250 | 500)