Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
APPLICATION OF WAF-TVD SCHEME FOR WATER HAMMER EQUATIONS
Submission Author:
Raphael Carvalho , RJ
Co-Authors:
Raphael Carvalho, Helcio Orlande, Marcelo Colaco, Italo Madeira
Presenter: Raphael Carvalho
doi://10.26678/ABCM.ENCIT2018.CIT18-0080
Abstract
Non-stationary flows are of great importance for many engineering problems. Whenever the velocity of the flow in a pipe changes rapidly, pressures waves are generated inside the ducts in a phenomenon called water hammer or hydraulic transient. The consequences of this process can be very dangerous to the hydraulic system. Therefore, it is important to understand how the pressure waves behave in such situations, through numerical and experimental simulations of different scenarios. The present work aims at the numerical solution of the water hammer problem in straight pipes. The hydraulic transient equations are solved through the finite volume method, using a TVD (Total Variation Diminishing) version of the WAF (Weighted Average Flux) scheme. The numerical code developed in this work is verified and validated with data available in the literature.
Keywords
water hammer, WAF-TVD, Numerical Methods
