Showing posts with label Emojis - ICM InfoWorks - 🌊 Continuous UPC Grate Inlet 🌊. Show all posts
Showing posts with label Emojis - ICM InfoWorks - 🌊 Continuous UPC Grate Inlet 🌊. Show all posts

Saturday, October 21, 2023

Emojis - ICM InfoWorks - 🌊 Continuous UPC Grate Inlet 🌊

 🌊 Continuous UPC Grate Inlet 🌊

The UPC Grate, stemming from the Universitat Politècnica de Catalunya 🎓, offers a modern twist as an alternative to the traditional HEC-22 continuous grate (often referred to as ContG) inlet.

The mathematical backbone of InfoWorks ICM's flow interception calculations for this inlet type draws inspiration from the profound research 📖 by Gomez, M. and Russo, B. back in 2011.

Starting off, here are the inlet parameters you need to jot down on the Node Property Sheet:

  • Cross slope 📐
  • Grate width 📏
  • Grate length 🔍
  • Count of bars (be it transverse, lateral, or diagonal) 🔢
  • Minimum area including voids ⚫
  • Area dedicated to voids ⚪

📌 The UPC equation is given by:

=() (Equation 9)

Where:

  • Qi = Flow intercepted 🌊
  • Qroadway = Approaching flow towards the inlet 🌊
  • y = Depth of the flow upstream of the inlet 📏

The coefficient 'A' is calculated using:

=(1(/100)) (Equation 10)

Where:

  • Ag = Area of the grate voids after bars are removed ⚪
  • p = Ratio of void areas (AH) to Ag, represented in percentage % 🔄
  • AH = Area of the grate voids ⚫

While 'B', another coefficient, is derived from:

=0.88+(0.075)(0.0015) (Equation 11)

Where:

  • L = Inlet length, measured in cm 📏
  • W = Inlet width, measured in cm 📏

For 'k', the equation to use can differ depending on the road width (referred to as x). Generally, this width is perceived as half of the total road width since gullies are usually aligned along both kerbs.

A few scenarios to note:

  • For a half roadway width of x = 3m: Use Equation (12)
  • When the half roadway width x < 3m: Use Equation (13)
  • For cases where half roadway width x > 3m: Employ Equation (14)

With x representing half the roadway's width and Sx as the cross slope.

The UPC Grate Inlet, with its unique equations and parameters, ensures that urban water management is both efficient and up-to-date! 💧🌟

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