Simulation of Injection Pump Cavitation

CFD Analysis of Cavitation and Acoustics of a High Energy Water Injection Pump

Combustion Research and Flow Technology (CRAFT Tech) utilizes the best CAE tools available to help investigate and understand the complex cavitation phenomena occurring in high energy water injection pumps. The complex geometry and physics of the problem make it a challenge to predict the unsteady interactions between the various components of the pump and the potential for cavitation in the impeller.

The team at CRAFT Tech utilizes Pointwise for preprocessing and relies on its ability to easily manage and organize complex assemblies so they may focus on meshing a single component or multiple components at any time. This allows engineers to rapidly generate multiple blocks resulting in high quality hybrid grid assemblies while maintaining the connectivity between adjacent components to improve interpolation and solution accuracy.

CRAFT Tech's CRUNCH CFD solver is utilized to resolve the unsteady interactions within the pump and the physics involved with predicting cavitation. CRUNCH CFD contains cavitation models as well as the ability to treat the thermodynamic effects of vaporizing fluids. Both single- and two-phase unsteady analyses of the pump system are performed to understand the potential for impeller cavitation and predict the far-field acoustic properties of the pump.

Finally, EnSight is used to help extract, visualize, and communicate the results of the solution to help understand the performance and ensure a proper design of the pump. EnSight's capability to illustrate the implicit motion of the impeller, along with dynamic and flexible post processing environment allows engineers to quickly and easily extract key information from a complex result.

Discover how to:

  • Manage complex assemblies and generate high quality hybrid grids using Pointwise.
  • Employ complex CFD solver capabilities to predict the potential for impeller blade cavitation and the acoustics of the pump system.
  • Efficiently and dynamically extract the salient information from the complex geometric and temporal solution using EnSight.
Travis Carrigan, Pointwise, Inc.

Travis Carrigan

Pointwise, Inc.

Travis Carrigan joined Pointwise as a senior engineer after completing his M.S. in aerospace engineering at The University of Texas at Arlington in May 2011 where his graduate research involved aerodynamic design optimization. Currently, as Manager of Technical Sales, Mr. Carrigan works with prospective customers and demonstrates how Pointwise software can be used to improve their CFD process. He also produces technical marketing content and works with customers and software partners to demonstrate best practices in grid generation, solver setup, and solution post-processing for a variety of industries.

Jeremy Shipman,  CRAFT Tech

Jeremy Shipman

CRAFT Tech

Jeremy Shipman joined CRAFT Tech in 1998 after completing his M.S. in Mechanical Engineering from the George Washington University.  Since joining CRAFT Tech, he has been involved in the numerical simulation of a broad range of applications including high altitude continuum/rarified flows, chemically reacting and particle laden flows, cryogenic liquid turbopumps and feed systems, and flight simulation models for aircraft launch and recovery from Naval ships.  He has many years experience utilizing pre and post processing tools from Pointwise and CEI with CRAFT Tech’s flow solvers in the CFD analysis process.

Kevin Colburn, CEI

Kevin Colburn

CEI

Kevin Colburn joined CEI in March 2007 after working for 14 years in automotive, combustion and aerospace fields as a CFD engineer. Kevin’s background is as a CFD user utilizing a wide variety of tools and techniques in the utilization of CFD within real world design cycles. Kevin had 7 years experience using EnSight as a user before joining CEI. Kevin received his B.S. from Rensselaer Polytechnic University in 1995.