F19 - Cavitation CFD: From
fundamentals to industrial applications


Organizers : S. Watanabe, F. Visser, M. Nohmi & B. van Esch

Satoshi Watanabe is working as a Professor at Department of Mechanical Engineering, Kyushu University (Fukuoka, Japan). His research interest lies in the field of hydromachinery from the development of machines to the fundamental flow physics especially cavitating flow.


Frank Visser is Engineering Specialist Hydraulics with Flowserve, Services & Solutions Engineering (Etten-Leur, The Netherlands). His key expertise and interests relate to fluid mechanics, CFD and thermodynamics of (centrifugal) pumps and hydraulic turbines, with special interest in cavitation.


Motohiko Nohmi is a group manager and a senior researcher at EBARA Corporation R&D division (Fujisawa-shi, Japan). His research interests are experimental fluid dynamics, computational fluid dynamics, and cavitaion.


Bart van Esch is Ass. Professor at Eindhoven University of Technology and Senior Engineer at Bosman Watermanagement Inc. Fields of research include fluid dynamics in hydraulic machinery with a special interest in fluid-induced forces, rotordynamics, and environmental issues.


Contacts:
fmnabe@mech.kyushu-u.ac.jp
fvisser@flowserve.com
nohmi.motohiko@ebara.com
B.P.M.v.Esch@tue.nl

Cavitation simulation based on computational fluid dynamics (CFD) has become very popular at the design stage of hydromachinery. However, there are not many publications reporting on cavitation simulations in real industrial applications such as pumps, turbines, marine propellers, and valves. This makes it difficult to assess the validity of current cavitation CFD for these purposes. Generally, it is believed that the accuracy of the current cavitation models is insufficient even for the steady hydraulic performance in such complex machines. Much more is known about modeling capabilities of fundamental flows like cavitation bubble dynamics or the behavior of single or multiple bubbles in typical 2D/3D devices like nozzles and hydrofoils. It is the objective of this forum to bring both fields of research together.
This forum aims at gathering, exchanging and sharing information from researchers and engineers actively working on the development and the application of cavitation CFD for both the fundamental and industrial applications. All accounts of using cavitation simulation are welcomed to be presented. Examples include industrial applications, prediction of cavitation performance, cavitation instabilities, cavitation noise and vibration, and cavitation erosion. Since the progress in cavitation modeling relies heavily on two-phase flow modeling, turbulence modeling, and fluid-structure interaction, researchers in these areas are also encouraged to submit.


Non-exhaustive list of suggested Topics:

- Cavitation CFD applied for hydromachinery design

- Understanding cavitating flow in/around pumps, hydroturbines, marine propellers etc.

- Predicting hydraulic performance deterioration due to cavitation

- Simulation of unsteady cavitating flow

- Understanding and predicting the cavitation related instabilities

- Prediction of cavitation intensity and cavitation erosion

- Development and application of cavitation models

- Cavitation-turbulence interaction

- Modeling of cavitation inception

- Modeling of thermal effect of cavitation