# Peak Discharge: SCS Peak Discharge Method

The dialog box for the SCS peak discharge method is shown below.

## · Input for the SCS peak discharge method:

· Unit System – English or SI …

## Energy Relation for Closed Conduit Flow in Innovyze H2OCalc

Energy Relation for Closed Conduit Flow

Conservation of energy involves a balance in total energy, expressed as head, between any upstream point of flow and a corresponding downstream point, including head losses caused …

## Gutter Flow in Innovyze H2OCalc

Gutter Flow

Gutters are the sections of roadway that run adjacent to the curb. Their purpose is to collect and convey surface runoff to drainage inlets and in turn to underground storm sewers. …

# 3.5 Hydraulic Jump

When the flow is Supercritical in an upstream section of a channel and is then forced to become subcritical in a downstream section, a rather abrupt change in depth usually …

## Pump Characteristic Curve from Innovyze H2OCalc

Pump Characteristic Curve

Pump Characteristic Curve

Pump characteristic curves are usually presented graphically describing the relationship between pump head, hp, and the flow rate, Q using either an exponential equation or 3-point …

## Inertia of Pumps and Motors from Innovyze H2OCalc – Idea for SWMM6

Inertia of Pumps and Motors

The combined inertia of pumps and motors driving them, including the connecting shafts and couplings, is required for transient analysis associated with the starting and stopping of pumps. …

## Time of Concentration Methods from Innovyze H2OCalc for any Hydrology Model

Time of Concentration

The dialog box for estimating time of concentration using the Kirpich method is shown below.

• General Input for the time of concentration methods:

· Unit System – English or SI …

## Gradually Varied Flow in Innovyze H2OCalc

Discussions in the previous sections have focused on uniform flow hydraulics where flow depth y and flow velocity V remain constant along the channel. In this section, we consider …

## Wave Speed in Innovyze H2OCalc – Alternative? for SWMM6

Note for SWMM6 – this may be useful for any discussion of a Slot in SWMM6.  A Preissmann Slot is used in InfoWorks ICM, XPSWMM and one of the solutions of SWMM4

Wave

## Flow Calculator (Simple in Innovyze H2OCalc) – Option for SWMM6?

2.3.1 Flow Calculator (Simple in Innovyze H2OCalc)

The Flow Calculator category performs hydraulic calculations for the following elements: Circular Channel, Rectangular Channel, Triangular Channel, Trapezoidal Channel, Irregular Channel, and Pressurized Pipe.

Circular Channel

## Weirs in Innovyze H2OCalc – Alternative? for SWMM6

3.11 Weirs in Innovyze H2OCalc

Discharge in channels and small streams can be conveniently measured by using a weir. Weirs can be categorized in to two: sharp crested and broad crested.

Sharp-Crested Weir

## Pump Calculations in Innovyze H2OCalc – Alternative? for SWMM6

3.6 Pump Calculations in Innovyze H2OCalc

A Pump is used to augment head to the system (water distribution systems or waste water collection systems), and helps to lift water from low lying locations …

## Water Hammer in Innovyze H2OCalc

3.14 Water Hammer

Surge analysis is important to estimate the worst-case events in the Water Distribution Systems (WDS). Transient regimes in WDS are inevitable and will normally occur as a result of action …

## Moody Friction Factor Calculator from Innovyze H2OCalc

3.3 Moody Friction Factor Calculator

Darcy-Weisbach friction factor, f, can be evaluated in terms of equivalent sand grain roughness, e, and Reynolds number, Re. Reynolds number is a dimensionless ratio of …

## Innovyze H2OCalc Head loss due to Transitions and Fittings (Local loss)

3.7 Head loss due to Transitions and Fittings (Local loss)

Whenever flow velocity changes direction or magnitude in a conduit (e.g., at fittings, bends, and other appurtenances) added turbulence is induced. The energy …

## Urban Drainage Structures from Innovyze H2OCalc

3.13 Urban Drainage Structures

The methodology presented here for analysis and design of the drainage structures described in this section is based on HEC-22 manual (FHWA, 2001)

Gutter Flow

Gutters are the sections …

## General Culvert Information from Innovyze H2OCalc for All Culvert Programs

General Culvert Information from Innovyze H2OCalc for All Culvert Programs

A culvert is a pipe that carries water under or through some feature (usually a road or highway) that would otherwise block the …