A comprehensive study on flow conditioner design working in a fi-fi monitor

Sustainable Developmnents and Innovations In Marine Technologies, Selma Ergin,C. Guedes Soares, Editör, Taylor eBookstore , London, ss.445-452, 2022

Sustainable Development and Innovations in Marine Technologies – Ergin & Guedes Soares (eds)

A.Ç. Bilir & N. Vardar

Department of Naval Architecture and Marine Engineering, Yildiz Technical University, Istanbul, Turkey

A. Doğrul

Department of Naval Architecture and Marine Engineering, Turkish Naval Academy, National Defense University,

Istanbul, Turkey

ABSTRACT: The fire-fighting monitor is a widely used equipment in several ship types to maintain the fire

protection of ships, offshore platforms and coastal regions. In this study, a custom design flow conditioner

was created and analyzed numerically in terms of different plate thicknesses to homogenize the flow properties

in downstream of the flow conditioner. The numerical analyses were carried out by solving unsteady

RANS equations. Different inlet pressures were tested for 200mm plate and the fi-fi monitor with three different

plate configurations were analyzed in terms of streamlines, outlet pressure, mass flow and pressure drop.

The numerical approach was validated for the 200mm thickness case. The numerical results were compared

with the fi-fi monitor without flow conditioner. The results were discussed focusing on the flow region

between the plate and the nozzle. The proper plate thickness was proposed by comparing the pressure drop

coefficient and flow field parameter via streamlines.