Open AccessTransient flow characteristics through sudden expansion and contraction
Author(s) -
Crossland Lisa,
Riya kumar,
Tathagata Ray,
Soumya Dutta,
Triparna Datta
Publication year - 2020
Publication title -
international journal of innovative research in physics
Language(s) - English
Resource type - Journals
eISSN - 2689-484X
pISSN - 2687-7902
DOI - 10.15864/ijiip.1405
Subject(s) - laminar flow , mechanics , turbulence , electrical conduit , flow (mathematics) , transient (computer programming) , compressibility , compressible flow , fluid dynamics , computational fluid dynamics , open channel flow , isothermal flow , pipe flow , physics , engineering , mechanical engineering , computer science , operating system
The transient flow characteristics have significant applications in the engineering industry, especially in the domains of high energy fluid physics and compressible flow. The present research work provides an investigation of the laminar-to-turbulent transition fluid flow when air passes through successive contractions and expansions. The study has been performed through experimental runs in a fiberglass wind tunnel at different check points and then validated through simulation in the ANSYS workbench by keeping the input parameters constant. The simulation reveals the flow detachment due to turbulence and sudden increase in area. The research also plays a pivot roll to depicts that the velocity has been changing over the different sections of the flow conduit. The validation has resulted in an accuracy reach of almost 99% and has therefore, provided a lucid understanding of the velocity and pressure profiles of the flow through the conduit.