FAQ - HiCalc Inquiries

HiCalc is a software package designed to quickly solve stationary flows in channels with rectangular section, trapezoidal or circular. Solve stationary uniform flow situations (eg infinite channels) and / or gradually varied flow (eg backwater curves). It can also be used for the calculation of structures typical flow control quickly Variado (eg weirs and gates). You can not apply for Spatially Varied Flow (example: lateral landfills). The program is done in Visual Basic and runs under MS Windows 95 environment or higher.

• "HiCalc Test" - Free distribution and use software. This programme will be limited by channels with rectangular section. To see specification click in here.

• "HiCalc Light" - The program allows you to calculate any type of sections permanent available. To see specification click in here.

• "HiCalc Full" - Full access to all functions of the program and updates. To see specification click in here.

Firstly, download software HiCalc. This program can be obtained free on our website in the download area. However, you can request HiCalc by sending an email to the address webmaster@istec.com.uy

When you run the installer, HiCalc shall be installed automatically in Test mode on your computer.

Once you try the program, if you want the functionality of the Light or Full version, you must obtain the corresponding registration code.

Please visited the page for registration status, choose the product area; select the code HiCalc you want to purchase. There you will find the cost and method of payment.

Once the transaction has been completed, we will send you at your email address a HiCalc code. To run the program you should select at the menu “Help" then at the submenu "Register" there you have to put de user and the password code.

If you choose as payment of registration "online payment by credit card" we will sent you an e-mail with a temporary code that allows you to use unrestricted HiCalc version. Within a maximum period of two business days, we will send to the address a code with the registration data.

The user manual is included with de program. It can be accessed there at any time while you are running HiCalc; press the "F1" or select “Help” in the menu; you can also access the User Manual directly from HiCalc folder in your Start menu.

HiCalc 1.5 does not automatically recognize registered users of previous versions.

"HiCalc Full" mode in version 1.4 users can access this update also in "HiCalc Full" mode for free, by entering the code and users received at the time.

All other registered previous versions users can access this update in the "HiCalc Light" free mode by entering the code and users, previously provided.

By registering your copy as HiCalc user you will be assigned a user name and password that will allow you to access, depending on the mode of registration HiCalc, you will get access to part or all program functions.

In any case the user will remain fully registered to new versions, upgrades and more. To obtain a registration code click here.

Calculate the tie rod (flow depth) of water flowing in a trapezoidal channel width and slope angle 5m 1V: 2H when the flow rate is 20 m ^ 3. The flow is sub or supercritical? The channel slope is 3 per thousand and the number of Manning is 0.022

Answer: The first thing to do is define the geometry of the channel in the corresponding form, selecting from the main menu. Enter "2" in the "Ang slope" box and pressing convert, we note that the angle of slope corresponding to a slope 1V: 2H corresponds to 26 degrees 56min. Also, add "5" in the "Background Width" box.

Then select the Uniform Flow form, enter data slope (0.003), number of Manning (0.022) and flow (20) and press "Calculate". Get the tie critics is 1.02 and the normal depth is 1,202. Therefore, under uniform rules strap (depth of discharge) it is 1.202.

As the normal depth is less than the critical depth, then the flow is subcritical.

In the form of uniform flow, in addition to the normal depth appear the most significant hydraulic parameters: Voltage line, area, wetted perimeter, etc.: in the form of uniform flow, in addition to the normal depth the most significant hydraulic parameters appear