Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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A pressure based flow velocity estimation technique using inverse impedance for simple pressurized pipeline systems

피압 단순 관로 체제에서의 인버스 임피던스를 이용한 수압기반 유속추정기술

  • Lee, Jeongseop (Research Institute of Industrial Technology, Pusan National University) ;
  • Ko, Dongwon (Department of Civil and Environmental Engineering, Pusan National University) ;
  • Choi, Dooyong (K-water Institute, K-water) ;
  • Kim, Sanghyun (Department of Civil and Environmental Engineering, Pusan National University)
  • 이정섭 (부산대학교 생산기술연구소) ;
  • 고동원 (부산대학교 공과대학 사회환경시스템공학과) ;
  • 최두용 (한국수자원공사) ;
  • 김상현 (부산대학교 공과대학 사회환경시스템공학과)
  • Received : 2022.06.02
  • Accepted : 2022.08.11
  • Published : 2022.08.15
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Abstract

In this study, we propose a flow velocity evaluation scheme based on pressure measurement in pressurized pipeline systems. Conservation of mass and momentum equations can be decomposed into mean and perturbation of pressure head and flowrate, which provide the pressure head and flowrate relationship between upstream and donwstream point in pressurized pipeline system. The inverse impedance formulations were derived to address measured pressure at downstream to evaluation of flow velocity or pressure at any point of system. The convolution of response function to pressure head in downstream valve provides the flow velocity response in any point of the simple pipeline system. Simulation comparison between traditional method of characteristics and the proposed method provide good agreements between two distinct approaches.

Keywords

Acknowledgement

이 연구는 수자원공사의 개방형 R&D(21-BT-002)의 지원에 의해서 수행되었습니다.

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