Johan Steelant - Academia.edu (original) (raw)
Papers by Johan Steelant
Journal of Propulsion and Power, Mar 1, 2014
The aim of this work is to study the fluid hammer and related multiphase phenomena taking place i... more The aim of this work is to study the fluid hammer and related multiphase phenomena taking place in a confined environment, where pressurized liquid faces vacuum conditions after opening an isolation valve. This paper describes the experimental facility built for this purpose, the tests performed, and shows the comparison with the numerical results obtained with a transient one-dimensional software based upon conservation equations. Because the multiphase phenomena taking place in the liquid front moving along the pipe are complex and difficult to interpret, a graphical tool by means of X-t diagrams was adapted by the authors to characterize the physical phenomena involved. Contrary to the classical water hammer analysis published in the literature so far, the X-t diagrams allow a simultaneous study in time and space for each of the magnitudes involved in the evolution of the fluid hammer.
Proceeding of First Symposium on Turbulence and Shear Flow Phenomena
Shock Waves
at the age of 62 to a fast-growing cancer. His death shocked all his friends, colleagues, and eve... more at the age of 62 to a fast-growing cancer. His death shocked all his friends, colleagues, and everybody who knew him as a healthy, strong, and active person, and this will be the way we will remember him. Klaus started his studies in mechanical engineering at the Technical University of Karlsruhe 1 in 1978, where he received his scientific education at the famous "Karlsruhe School" of Prof. Jürgen Zierep, which created numerous fluid mechanics experts. Even back in 1978, the scientific exchange between KIT and the German Aerospace Center in Göttingen was profound. Through this cooperation, Klaus found his way to the DFVLR Institute of Fluid Mechanics 2
Journal of Propulsion and Power, Mar 1, 2014
The aim of this work is to study the fluid hammer and related multiphase phenomena taking place i... more The aim of this work is to study the fluid hammer and related multiphase phenomena taking place in a confined environment, where pressurized liquid faces vacuum conditions after opening an isolation valve. This paper describes the experimental facility built for this purpose, the tests performed, and shows the comparison with the numerical results obtained with a transient one-dimensional software based upon conservation equations. Because the multiphase phenomena taking place in the liquid front moving along the pipe are complex and difficult to interpret, a graphical tool by means of X-t diagrams was adapted by the authors to characterize the physical phenomena involved. Contrary to the classical water hammer analysis published in the literature so far, the X-t diagrams allow a simultaneous study in time and space for each of the magnitudes involved in the evolution of the fluid hammer.
Proceeding of First Symposium on Turbulence and Shear Flow Phenomena
Shock Waves
at the age of 62 to a fast-growing cancer. His death shocked all his friends, colleagues, and eve... more at the age of 62 to a fast-growing cancer. His death shocked all his friends, colleagues, and everybody who knew him as a healthy, strong, and active person, and this will be the way we will remember him. Klaus started his studies in mechanical engineering at the Technical University of Karlsruhe 1 in 1978, where he received his scientific education at the famous "Karlsruhe School" of Prof. Jürgen Zierep, which created numerous fluid mechanics experts. Even back in 1978, the scientific exchange between KIT and the German Aerospace Center in Göttingen was profound. Through this cooperation, Klaus found his way to the DFVLR Institute of Fluid Mechanics 2