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The One Way Flow Restrictor (OWFR) is one of its kind passive device that restricts the fluid flow in reverse direction compared to its forward direction. When installed in piping system and operating flow is in reverse direction, the OWFR will reduce the rate of loss of inventory to prevent the severe consequences like system overheating, faster depressurization etc. Comparative much less restriction in forward direction maintains the normal operation of overall system almost same. Towards this requirement, a 6-inch size OWFR development work has been initiated. A conceptual design of OWFR has been derived using form drag concept of restriction. The CFD analysis was carried out for pressure, velocity, particle path profiles both in forward and reverse direction. The designed OWFR was fabricated and its flow characteristics has been measured experimentally. This paper describes the design concept, numerical analysis by CFD, fabrication, experimentations and results of designed 6-inch OWFR. The results of CFD have also been validated against experiment and a comparative analysis of experimental and CFD data is also described here.

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Design and Development of 6-inch Size One Way Flow Restrictor (OWFR)

  • 会议论文

  • 发表日期：

    2025年

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  • S. Kundu,
  • Mukesh Kumar,
  • S. P. Gupta,
  • A. Vaidya,
  • T. Sultan,
  • S. K. Sinha

摘要

The One Way Flow Restrictor (OWFR) is one of its kind passive device that restricts the fluid flow in reverse direction compared to its forward direction. When installed in piping system and operating flow is in reverse direction, the OWFR will reduce the rate of loss of inventory to prevent the severe consequences like system overheating, faster depressurization etc. Comparative much less restriction in forward direction maintains the normal operation of overall system almost same. Towards this requirement, a 6-inch size OWFR development work has been initiated. A conceptual design of OWFR has been derived using form drag concept of restriction. The CFD analysis was carried out for pressure, velocity, particle path profiles both in forward and reverse direction. The designed OWFR was fabricated and its flow characteristics has been measured experimentally. This paper describes the design concept, numerical analysis by CFD, fabrication, experimentations and results of designed 6-inch OWFR. The results of CFD have also been validated against experiment and a comparative analysis of experimental and CFD data is also described here.