Upflow Ramps | Assisstant for the design of uphill flow rock ramps

Version: 1.2 (Nov. 12, 2021)
Authors:
- Carolina Martínez Santa-María
- José Anastasio Fernández Yuste
Contact: <upflowramp@gmail.com>
Intro

Preliminary considerations

This assistant is offered as an aid for the dimensioning of upflow ramps. Before using it, it is imperative to read in detail the Uphill Flow Rock Ramp Design.
The calculation sequence is analogous to that described in the Manual:
The results obtained with the assistant cannot be considered as definitive in any case. They are a support for the final decision making, which will always be determined by the peculiarities of each project and the knowledge and experience of the designer.
A is offered that shows in a very synthetic way the actions to be developed in each phase, as well as the data to be entered and the results obtained.

Upflow ramps dimensioning assistant

Brief Guide Version 1.2 (Nov. 12, 2021)

All data must be added in the International System (SI Units).
Dot is used as decimal separator.

New Project

Give a name and description to the project. They both will show up in the heading of the report downloaded by the user when the software ends the calculation sequence

Phase 1

Add the requested DATA and click Calculate.
The software shows in a table the values [Δh; h₂; WGg] associated to the abovementioned data.
The user may modify data, and the table updates after pressing Calculate .
The user must select a value of WGg in the table. The software shows the selected values [Δh; h₂; WGg].

Phase 2

Enter requested DATA. For h_weir a value greater than or equal to 0.15 meters is recommended. Press Calculate.
The software offers the results obtained.
If the user wishes to modify the hydraulic results of Phase 1, this phase may be revisited to select another value of WGg. The hydraulic data for Phase 2 are then automatically updated.
Geometric data may be modified; after pressing Calculate the results become updated.
If due to the availability of materials or due to constructive reasons the user wishes a specific value of Hb, he would only have to repeat the process, entering as h_weir the value corresponding to the expression: h_weir= Hb(user)-(h₁+y), where h₁ and y are the values obtained above. Once h_az is introduced, and after pressing Calculate again, the results of this Phase will be obtained.

Phase 3

Add the requested DATA and click Calculate.
DATA may be modified. Results are renewed by pressing Calculate.
The user must pre-select a slope for the ramp –the most frequent criterion takes into account the values of dissipated power -Pd-.

Phase 4a

It is not necessary to add data.
Firstly -4a.1-, the resulting values for flow and depth can be visualized, for Q_R(y=0) - Flow through the ramp for y=0, or flow over which the weir starts spilling -.
For that flow value, the results 4a.2 show the ramp features for different slopes. The slope selected in the previous phase is highlighted. If the user does not accept the results for that slope value and Q_R(y=0), Phase 3 must be revisited in order to select other slope value. Automatically, the new slope value becomes highlighted as part of the results of this Phase.
Once the results are accepted, the following Phase becomes activated.

Phase 4b

Add the requested DATA and click Calculate.
The software shows the results for flows and depths -4b.1- when the flow in the ramp is Q_RMAX -Max flow through the ramp over which the boulders are drowned - and the flow through the weir spillway is Q_weir(h_weir).
The table with the DATA may be modified. Results are renewed by pressing Calculate.
For Q_RMAX, the results 4a.2 show ramp features for a range of slope values. The slope value selected in Phase 3 is highligthted. If the user does not accept the results for that slope value and Q_RMAX, Phase 3 must be revisited for selecting another slope. Automatically, the new slope value turns highlighted as part of the results 4a.2 and 4b.2.

Phase 5

Add the requested DATA and click Calculate.
Only the hypothesis by default will be evaluated, unless the user enters a value for h_2,n^{non U}user.
For each hypothesis, the software shows a table with the hydraulic variables -h2; h1; Δh; v_MAX- by row.
Click "Download report" to get a report -Project Name.xls- including all the information entered and generated during the session.

Table 1. Data and results to consider during each Phase. A table including symbols, units, definitions and phase they are used by variable can be found in the Annex 1 in the Manual.

	DATA		RESULTS		FIGURES IN THE MANUAL TO BE CONSULTED
	GEOMETRIC	HYDRAULIC	GEOMETRIC	HYDRAULIC	FIGURES IN THE MANUAL TO BE CONSULTED
PHASE 1	WGgmin(m)	Q_RMIN(m³/s)	Combinaciones de valores [Δh; h₂; AvG] compatibles con los datos facilitados.		3, 4, 19, 20
	Nm
	p(m)
PHASE 2	H₀(m)	Δh(m)	H_T(m)	h₁(m)	3, 17, 18
	Hcweir(m)	h₂(m)	H_R(m)	y(m)
	WGg(m)		Nrow	Vmax (m/s)
	h_weir(m)		Np
			Hb(m)
			WHg(m)
PHASE 3	Db(m)		a(m)	Vol m^*(m³)	5, 17
	Wb(m)		b(m)	Pd^*(W/m³)
	α(°)		Wramp(m)	h₀(m)
			L_R^*(m)
			Lp^*(m)
			Wm^*(m)
			^*Values are given for 0.03 ≤ tgβ ≤ 0.1
PHASE 4a	Hb(m)	Δh		Q_R(y=0) (m³/s)	21
	h_weir(m)			h₂[Q_R(y=0)] (m)
	Nm			h₁[Q_R(y=0)] (m)
	tgβ			h₀[Q_R(y=0)] (m)
				Vol m^*(m³)
				Pd^*(W/m³)
			^*Values are given for 0.03 ≤ tgβ ≤ 0.1
PHASE 4b	Wcweir			Q_RMAX (m³/s)	22
	Lweir			h₂(Q_RMAX) (m)
				h₁(Q_RMAX) (m)
				h₀(Q_RMAX) (m)
				Q_weir(h_weir) (m³/s)
				Qa_MAX=Q_weir(h_weir) + Q _RMAX
				Vol m^*(m³)
				Pd^*(W/m³)
			^*Values are given for 0.03 ≤ tgβ ≤ 0.1
PHASE 5		h_2,n^{no U}user (m)^**		h₁(m)^***	23
	^** If user does not enter any values, only the assumptions are evaluated: h_2,n^{no U} (Q_RMAX) = h_2,n^U Q_R(y=0) h_2,n^{no U} (Q_RMAX) = 0.8*h_2,n^U (Q_RMAX)			h₁(m)^***
				Δh(m)^***
				Vmax(m/s)^***
			^**The values in each row are given for the hypothesis: h_2,n^{no U}* (Q_RMAX) = h_2,n^U Q_R(y=0) h_2,n^{no U} (Q_RMAX) = 0.8*h_2,n^U (Q_RMAX) h_2,n^{no U} (Q_RMAX) = h_2,n^Uuser