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Velocity and discharge distribution of an open-channel river partially covered with mixed vegetation of various heights

  • Tang, X. (Participant)
  • Zixin Yang (Participant)
  • Qinzheng Teng (Participant)

Activity: Participating in or organising an event › Participating in an event e.g. a conference, workshop, …

Description

The impact of vegetation on flow has been drawing increasing attention in the eco-environment and river restoration research. However, in natural riverine environments, different vegetation of various heights often co-grows in natural rivers and occupies only part of the channel, which results in the change of velocity both vertically and laterally, consequently re-distributing discharge. This paper aims to understand the impact of vegetation with different heights on the lateral velocity and discharge change in a channel partially covered with vegetation of three different heights through experimental study. The experimental results show that the vertical velocity profiles are significantly different in the non-vegetated zone and within the vegetated zone. The additional resistance of vegetation reduces the velocity of vegetated zone, resulting in significant reduce of flow and creating a large lateral velocity gradient between vegetation and non-vegetation zone.
Period22 Jul 2025 → 27 Jul 2025
Event typeConference
Conference number41
LocationSingapore, SingaporeShow on map
Degree of RecognitionInternational