1 / 9

Tutorial for CIVL252 Hydraulics

Tutorial for CIVL252 Hydraulics. By DUAN Huanfeng ceduan@ust.hk. y0. y1. Example 1. Problem rectangular channel with 6ft width. y0, y1 are 65ft and 1ft, respectively horsepower lost =? in the hydraulic jump. Solution From section 0 to 1 From section 1 to 2 Head loss (Method 1).

yeo-diaz
Download Presentation

Tutorial for CIVL252 Hydraulics

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Tutorial for CIVL252 Hydraulics By DUAN Huanfeng ceduan@ust.hk

  2. y0 y1 Example 1 • Problem • rectangular channel with 6ft width. • y0, y1 are 65ft and 1ft, respectively • horsepower lost =? in the hydraulic jump

  3. Solution • From section 0 to 1 • From section 1 to 2 • Head loss (Method 1)

  4. head loss (Method 2) • For section 1 and 2: • V1=64.2ft/s; y1=1ft; • V2=?; y2=15.5ft; • According to continuity EQ: • V2=64.2*1/15.5=4.142ft/s • According to Energy EQ: • HL = (y1+V12/2g) - (y2+V22/2g)=49.2ft

  5. q=12 cfs/(s*ft) 2 1 Rectangular weir Slope = 0.04 3ft Example 2 • Problem • Water flows at a steady rate of 12 cfs per foot of width in the wide rectangular concrete channel shown. Pls determine the water surface profile from section 1 to section 2.

  6. Solution • First, determine type of the flow regime. Assume n =0.015; the depth is h1.

  7. Second, determine whether a water jump occurs upstream of the weir.

  8. Furthermore, determine the distance from the weir to where the hydraulic jump occurs.

  9. 0.74ft 3.13ft 5.26ft 57.0ft • Complete the water surface profile

More Related