Prismatic and Non-Prismatic Channels

In this article, I will describe prismatic channels and non-prismatic channels. These two channels are considered open channels.

Let’s get started.

First, we will know about prismatic channels.

What are Prismatic Channels?

Prismatic channels have a uniform cross-section throughout the channel length and constant bottom slope. Prismatic channels can be triangular, rectangular, parabolic, trapezoidal, or circular. Artificial channels are usually prismatic channels.

Characteristics of Prismatic Channels:

• The cross-section of the prismatic channels is uniform throughout the channel length.
• The bottom slop does not vary.
• The shape of the prismatic channels can triangular, rectangular, parabolic, trapezoidal, or circular.
• All the artificial channels normally constructed as prismatic channels.

Now let’s discuss non-prismatic channels.

What are Non-Prismatic Channels?

Prismatic channels have a non-uniform cross-section throughout the channel length and the bottom slope varies. Natural channels like rivers are usually non-prismatic channels.

Characteristics of Non-Prismatic Channels:

• Cross section of the non-prismatic channels varies with the length.
• Bottom slop also varies.
• Non-prismatic channels have irregular shape.
• Normally, natural channels are non-prismatic channels.