Vertical slot fishways - Revision history

Bendikhansen at 10:40, 26 January 2021

2021-01-26T10:40:53Z

Bendikhansen: /* Relevant literature */

2021-01-26T10:27:02Z

Relevant literature

Bendikhansen: /* Methods, tools, and devices */

2021-01-26T10:26:21Z

Methods, tools, and devices

Bendikhansen: /* Methods, tools, and devices */

2021-01-26T10:25:46Z

Methods, tools, and devices

Bendikhansen: /* Methods, tools, and devices */

2021-01-26T10:25:30Z

Methods, tools, and devices

Bendikhansen: /* Introduction */

2021-01-26T10:14:45Z

Introduction

Bendikhansen: /* Introduction */

2021-01-26T10:13:40Z

Introduction

Bendikhansen: /* Introduction */

2021-01-26T10:12:42Z

Introduction

Bendikhansen: /* Introduction */

2021-01-26T10:11:53Z

Introduction

Bendikhansen at 10:11, 26 January 2021

2021-01-26T10:11:33Z

@@ Line 1: / Line 1: @@
 [[file:icon_upstream.png|right|150px|link=[[Upstream fish migration]]]]
 {{Note|This technology has been enhanced in the FIThydro project! See [[Innovative technologies from FIThydro]] for a complete list.|reminder}}
 =Introduction=
-[[file:vertical_slot_fishway.jpg|thumb|250px|Figure 1: Vertical slot fishway in Chatellerault, France.]]
+[[file:wsf_single_paired.png|thumb|250px|Figure 1: Single and paired vertical slot fishway.]]
 This type of fishway was developed in North America (Clay, 1961), following several studies on models. The pools may have one or two deep slots (Figure 1), depending on the size of the watercourse and the discharge available. The advantage of having two slots is to be able to increase the flow in the device, instead of an attraction flow injection system or to compensate a moderate head drop at the entrance.

← Older revision		Revision as of 10:27, 26 January 2021
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	=Relevant literature=		=Relevant literature=
		+	* Ballu, A. 2017. Etude numérique et expérimentale de l'écoulement turbulent au sein des passes à poissons à fentes verticales. Analyse de l'écoulement tridimensionnel et instationnaire. s.l. : Thèse de doctorat - Université de Poitiers, 2017.
		+	* Ballu, A., et al. 2017. Experimental study of the influence of macro-roughnesses on vertical slot fishway flows. La Houille Blanche. May 2017, 2, pp. 9-14.
		+	* Ballu, A., et al. 2015. Experimental study of the influence of sills on vertical slot fishway flow. The Hague - The Netherlands : Proceedings of the 36th IAHR World Congress, 2015.
		+	* Bombac, M., Cetina, M. et Novak, G. 2017. Study on flow characteristics in vertical slot fishways regarding slot layout optimization. Ecological Engineering. 107 : 126-136, 2017.
		+	* Clay, H. C. 1961. Design of fishways and other fish facilities. s.l. : Department of Fisheries of Canada, p. 301.
		+	* Fuentes-Pérez, JF., et al. 2014. Modeling water-depth distribution in vertical slot fishways under uniform an non-uniform scenarios. Journal of Hydraulic Engineering, 140, 6014016. 2014.
		+	* Larinier, M., Travade, F. et Porcher, J. P. 2002. Fishways: biological basis, design criteria and monitoring. 2002, p. 208.
		+	* Lenne, D. 1990. Circulation des poissons migrateurs : franchissement des buses et étude hydraulique des passes à bassins successifs. s.l. : EN1TRS CEMAGREF, 70 p.
		+	* Liu, M., Rajaratnam, N. et Zhu, D.Z. 2006. Mean flow and turbulence structure in vertical slot fishways. Journal of hydraulic engineering, 10.1061. 2006.
		+	* Puertas, J., Pena, L. et Teijeiro, T. 2004. Experimental approach to the hydraulics of vertical slot fishways. Journal of Hydraulic Engineering, 130. 2004, pp. 10-23.
		+	* Rajaratnam, N., Van der Vinne, G. et Katopodis, G. 1986. Hydraulics of vertical slot fishways. Journal of Hydraulic Engineering. 1986, Vol. 112, 10, pp. 909-927.
		+	* Rajaratnam, N., Katapodis, C. et Solanki, S. 1992. New designs for vertical slot fishways. 1992, pp. 402-414.
		+	* Romao, F., et al. 2017. Passage performance of two cyprinids with different ecological traits in a fishway with distinct vertical slot configurations. Ecological Engineering. 105 : 180-188, 2017.
		+	* Wang, R.W., David, L. et Larinier, M. 2010. Contribution of experimental fluid mechanics to the design of vertical slot fish passes. Knowledge and Management of Aquatic Ecosystems. 2010, pp. 366, 02
		+	* Wu, S., Rajaratnam, N. et Katapodis, C. 1999. Structure of flow in vertical slot fishway. Journal of Hydraulic Engineering 125 (4). 1999, pp. 351-360.
		+

	[[category:Upstream fish migration measures]][[category:Solutions]][[Category:Enhanced in FIThydro]]		[[category:Upstream fish migration measures]][[category:Solutions]][[Category:Enhanced in FIThydro]]

@@ Line 44: / Line 44: @@
 ==During implementation==
+Physical implementation of vertical slot fishways requires heavy machinery suited for the river size and its surrounding terrain, such as excavators and trucks. Work with explosives is relevant in most cases and blasted rocks and transportation of material out from the site is common. Surplus rocks should not be disposed at site because of pollution risk. The construction phase includes construction of concrete formwork, casting of concrete and iron reinforcement work.
 ==During operation==
 =Relevant MTDs and test cases=

@@ Line 41: / Line 41: @@
 ==During planning==
-Planning of a vertical slot fishway will start with mapping and surveying of the barrier itself and the river reach upstream and downstream of the barrier, including information about the hydropower scheme. Surveying must also be conducted in the area of the river bank where the fishway is planned, including geological surveying. Geographic data should be handled in GIS software for further planning and analyses. The design of the fishway should be conducted with conventional hydraulic and civil engineering calculations and drawing (see Fithydro [https://www.fithydro.eu/deliverables-tech/ deliverable 2.1]). All material used in a fishway must be planned to withstand physical strain from water, floods and frost. Monitoring facilities should basically be planned in the upper part of the fishway.
+Planning of a vertical slot fishway will start with mapping and surveying of the barrier itself and the river reach upstream and downstream of the barrier, including information about the hydropower scheme. Surveying must also be conducted in the area of the river bank where the fishway is planned, including geological surveying. Geographic data should be handled in GIS software for further planning and analyses. The design of the fishway should be conducted with conventional hydraulic and civil engineering calculations and drawing (see FIThydro [https://www.fithydro.eu/deliverables-tech/ deliverable 2.1]). All material used in a fishway must be planned to withstand physical strain from water, floods and frost. Monitoring facilities should basically be planned in the upper part of the fishway.
 ==During implementation==

← Older revision		Revision as of 10:25, 26 January 2021
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	==During planning==		==During planning==
		+	Planning of a vertical slot fishway will start with mapping and surveying of the barrier itself and the river reach upstream and downstream of the barrier, including information about the hydropower scheme. Surveying must also be conducted in the area of the river bank where the fishway is planned, including geological surveying. Geographic data should be handled in GIS software for further planning and analyses. The design of the fishway should be conducted with conventional hydraulic and civil engineering calculations and drawing (see Fithydro [https://www.fithydro.eu/deliverables-tech/ deliverable 2.1]). All material used in a fishway must be planned to withstand physical strain from water, floods and frost. Monitoring facilities should basically be planned in the upper part of the fishway.

	==During implementation==		==During implementation==

@@ Line 20: / Line 20: @@
 Where:
-:Q = flow discharge (m<sup>3</sup>/s)
+:<math>Q</math> = flow discharge (m<sup>3</sup>/s)
 and
-:b = width of the slot (m)
+:<math>b</math> = width of the slot (m)
-:H1 = head at the slot (m), i.e. the difference between the water level upstream of the slot and that of the slot crest
+:<math>H_1</math> = head at the slot (m), i.e. the difference between the water level upstream of the slot and that of the slot crest
-:g = acceleration due to gravity (9.81 m/s<sup>2</sup>)
+:<math>g</math> = acceleration due to gravity (9.81 m/s<sup>2</sup>)
-:∆H = drop between the two pools (m)
+:<math>\Delta H</math> = drop between the two pools (m)
-:Cd = discharge coefficient of the slot
+:<math>C_d</math> = discharge coefficient of the slot
 The coefficient of discharge is dependent on the slot configuration/layout ( (Bombac, et al., 2017; Romao, et al., 2017)), width and the water depth ( (Rajaratnam, et al., 1986) (Wu, et al., 1999), (Fuentes-Pérez, et al., 2014)), the design of the baffle and the global geometry of the pools (Puertas, et al., 2004), the slope (Wang, et al., 2010) or even the presence of sill in slot (Ballu, et al., 2015) or roughness on the bottom of the pool (Ballu, et al., 2017)). In general, it may vary from 0.65 to 0.85, depending of the configuration of these parameters.

@@ Line 18: / Line 18: @@
 :<math>Q = C_d * b * H_1 * (2g * \Delta H) * 0.5</math>
-:Where Q = flow discharge (m<sup>3</sup>/s)
+Where:
 and

@@ Line 16: / Line 16: @@
 The flow through a vertical slot fishway can be expressed by the formula:
-:<math>Q = C_d * b * H_1 * (2g * \delta H) * 0.5</math>
+:<math>Q = C_d * b * H_1 * (2g * \Delta H) * 0.5</math>
 :Where Q = flow discharge (m3/s)