HYDRATOOLS
Hydraulic Calculator for the HP48
HYDRATOOLS solves equations frequently used to determine the discharge of
orifices, weirs, gutters, channels, and pipes in gravity and pressure conditions.
HYDRATOOLS is particularly useful for designing storm drain
systems.
![[]](images/trapzoid.jpg)
HYDRATOOLS is very easy to use.
Just select the equation to use from the menu and
a dialog box is displayed on screen where you can fill in the values. Then press the SOLVE key to compute an answer.
HYDRATOOLS can solve the following equations:
Partial Pipe Flow
You can always solve for any variable, but some of the most common uses are:
- Compute the discharge of a given pipe at any depth of flow.
- Given a discharge and a slope, compute the minimum pipe size required.
- Given a required discharge and a pipe size compute the necessary slope.
Pipe Pressure Flow
Pressure flow allows you to:
- Determine the discharge of a pipe at a given head.
- Calculate the head required to pass a known discharge.
- Calculate the pipe size required to pass a given discharge at a given head.
Channel Flow
Channel flow includes equations for the following channel configurations:
- Triangular
- Rectangular
- Trapezoidal
- Parabolic
- Other (By Area & Wetted Perimeter)
As with all HYDRATOOLS equations you can always solve
for any variable. For example, you can calculate the bottom width of a trapezoidal channel
required to pass a given Q at a given slope.
Gutter Flow
- By Manning's Equation
- By Izzard's Equation
Orifice Flow
Orifice flow conditions often arise in the design of storm water management outflow structures.
HYDRATOOLS allows you to easily compute the orifice size required to
achieve a peak discharge rate in a detention basin design.
Weir Flow
The weir flow equations are also useful for designing storm water management outlet structures.
HYDRATOOLS is available either on a card or on disk to be downloaded into
your HP48 via the serial port. It is also included with
HYDROmate, RAMSS' TR-55 method hydrology
software for the HP48.
Hardware Requirements:
Card: HP48SX or GX with 8K RAM available
Disk: HP48S, SX, G, or GX with 24K RAM available, serial cable
The current version of HYDRAtools is 2.01. If you have an earlier version
see UPDATES for information on ordering the
latest version.
