Determination of the coefficient and pressure drop of a sudden contraction in non-permanent flow

Author(s)

Ines Patelli Juliani

• Document type: Master's Dissertation
• Press: São Carlos.
• Institution: Universidade de São Paulo (USP). Escola de Engenharia de São Carlos (EESC/SBD)
• Defense date: 1993-11-22

Examining board members

Hans George Arens; Samuel Washington Celere; Luisa Fernanda Ribeiro Reis

• Advisor: Hans George Arens

Abstract

The local head loss coefficients calculated to steady flow have been largely utilized for the calculations for head loss in the unsteady flow. It known, meantime , that occur devious between the two types the steady flow andun steady f low and that this may be considered proportional to the acceleration number. With the objective to determine the coefficient of proportionality C0 that relate this devious between the local head loss coefficient in the unsteady flow Ku and the local head loss coefficient in the steady flow K8 with the acceleration accelerated numbér, were realised experiments using unsteady flow or desaccelerated and unidireccional through of the sudden contraction. (AU)