Journal Paper

Paper Information

Journal: مهندسی منابع آب
Year:1395 | Volume:9 | Issue:29
Start Page:125 | End Page:137

video

sound

Persian Version

View:

224

Download:

0

Cites:

Information Journal Paper

Title

NUMERICAL SIMULATION OF FLOW PATTERN ON THE TRIANGULAR PLAN FORM WEIRS AND COMPARING TO LINEAR WEIR TECHNIQUES USING FLOW-3D

Pages

 Start Page 125 | End Page 137

Abstract

 Weirs have widely been used for the flood flow, flow measurement, flow diversion and control of water levels in dams, rivers and open channels. This study was curried out to investigate the hydraulic characteristics of flow over the sharp-crested TRIANGULAR PLAN FORM WEIRS for different apex angles. Three-dimensional flow field over the weirs 30, 60, 150 and 180 degrees was numerically simulated based on the RNG turbulence model using the software FLOW-3D version 10.0.1. The results showed as the apex angle increases, the interference of the longitudinal and lateral falling flows decreases and in turn leads to less disturbance and vortex flow. Also, in downstream, the flow surface knob of the longitudinal profile and height difference between the transverse cross-section profile becomes less and velocity and Froude number increase, whereas the pressure on downstream bottom decreases. The results show that the RNG turbulence model for determining water surface profiles along the channel downstream of the weir of appropriate accuracy.

Cites

  • No record.
  • References

  • No record.
  • Related Journal Papers

    Related Seminar Papers

  • No record.
  • Related Plans

  • No record.
  • Recommended Workshops






    File Not Exists.