Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Unraveling the Geometry Dependence of In-Nozzle Cavitation in High-Pressure Injectors

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep02067· OSTI ID:1624625
 [1];  [2];  [2];  [3];  [2]
  1. Argonne National Lab. (ANL), Argonne, IL (United States); Livermore Software Technology Corporation, Livermore, CA (United States); DOE/OSTI
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
  3. Wayne State Univ., Detroit, MI (United States)
Cavitation is an intricate multiphase phenomenon that interplays with turbulence in fluid flows. It exhibits clear duality in characteristics, being both destructive and beneficial in our daily lives and industrial processes. Despite the multitude of occurrences of this phenomenon, highly dynamic and multiphase cavitating flows have not been fundamentally well understood in guiding the effort to harness the transient and localized power generated by this process. In a microscale, multiphase flow liquid injection system, we synergistically combined experiments using time-resolved x-radiography and a novel simulation method to reveal the relationship between the injector geometry and the in-nozzle cavitation quantitatively. We demonstrate that a slight alteration of the geometry on the micrometer scale can induce distinct laminar-like or cavitating flows, validating the multiphase computational fluid dynamics simulation. Furthermore, the simulation identifies a critical geometric parameter with which the high-speed flow undergoes an intriguing transition from non-cavitating to cavitating.
Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1624625
Journal Information:
Scientific Reports, Journal Name: Scientific Reports Journal Issue: 1 Vol. 3; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (47)

Two-phase modeling of cavitated flows journal September 1995
A numerical method for the simulation of steady and unsteady cavitating flows journal January 2000
Modelling of cavitation in diesel injector nozzles journal December 2008
Interaction between Supersonic Disintegrating Liquid Jets and Their Shock Waves journal February 2009
Light scattering measurements of the repetitive supersonic implosion of a sonoluminescing bubble journal December 1992
Bubble Dynamics and Cavitation journal January 1977
Influence of Vortex flow and Cavitation on Near-Nozzle Diesel Spray Dispersion Angle journal January 2009
Cavitation Inside Multi-hole Injectors for Large Diesel Engines and Its Effect on the Near-nozzle Spray Structure conference April 2006
Spray Formation and Combustion book January 1993
Experimental investigation of abrasive flow machining effects on injector nozzle geometries, engine performance, and emissions in a di diesel engine journal February 2008
Boundary conditions for direct simulations of compressible viscous flows journal July 1992
Phenomenological model for cavitation erosion rate computation journal November 1987
A numerical method for the simulation of steady and unsteady cavitating flows journal January 2000
Effects of cavitation in a nozzle on liquid jet atomization journal August 2007
Modelling of cavitation in diesel injector nozzles journal December 2008
A new modelling of cavitating flows: a numerical study of unsteady cavitation on a hydrofoil section journal July 1992
Observations of shock waves in cloud cavitation journal January 1998
DNA search and rescue journal March 2005
Quantitative analysis of highly transient fuel sprays by time-resolved x-radiography journal August 2003
Metrology of steel micronozzles using x-ray propagation-based phase-enhanced microimaging journal August 2005
Four dimensional visualization of highly transient fuel sprays by microsecond quantitative x-ray tomography journal February 2009
Nozzle Exit Flow Characteristics for Square-edged and Rounded Inlet Geometries journal January 1983
Measurements of void fraction distribution in cavitating pipe flow using x-ray CT journal March 2012
Interaction between Supersonic Disintegrating Liquid Jets and Their Shock Waves journal February 2009
Light scattering measurements of the repetitive supersonic implosion of a sonoluminescing bubble journal December 1992
Effect of Noble Gases on Sonoluminescence Temperatures during Multibubble Cavitation journal January 2000
Time-resolved measurements of supersonic fuel sprays using synchrotron X-rays journal November 2000
The Use of Cavitating Jets to Oxidize Organic Compounds in Water journal May 2000
Mathematical Basis and Validation of the Full Cavitation Model journal August 2002
Numerical Simulation of Two-Phase Flow in Injection Nozzles: Interaction of Cavitation and External Jet Formation journal November 2003
Possibility of Quantitative Prediction of Cavitation Erosion Without Model Test journal September 1996
Nozzle Geometry and Injection Duration Effects on Diesel Sprays Measured by X-Ray Radiography journal April 2008
A Statistical Analysis of Cavitation Erosion Pits journal December 1991
X-ray Imaging of Shock Waves Generated by High-Pressure Fuel Sprays journal February 2002
Cavitation in Fluid Machinery and Hydraulic Structures journal January 1981
C AVITATION IN V ORTICAL F LOWS journal January 2002
Atomization and Sprays book December 1988
The internal flow of diesel fuel injector nozzles: A review journal February 2001
X-Ray Radiography Measurements of Diesel Spray Structure at Engine-Like Ambient Density journal January 2009
Influence of Vortex flow and Cavitation on Near-Nozzle Diesel Spray Dispersion Angle journal January 2009
Modeling Cavitating Flows in Diesel Injectors journal January 1996
Effects of Cavitation and Internal flow on Atomization of a Liquid jet journal January 1998
Linking Nozzle flow with Spray Characteristics in a Diesel fuel Injection System journal January 1998
A Fully Compressible, Two-Dimensional Model of Small, High-Speed, Cavitating Nozzles journal January 1999
Cavitation in Real-Size Multi-Hole Diesel Injector Nozzles conference March 2000
Experimental Study of Cavitation in the Nozzle Hole of Diesel Injectors Using Transparent Nozzles conference February 1995
Diesel Common Rail and Advanced Fuel Injection Systems book September 2005

Cited By (4)

Unveiling the physical mechanism behind pistol shrimp cavitation journal October 2017
Illustrating the effect of viscoelastic additives on cavitation and turbulence with X-ray imaging journal October 2018
High-speed visualization of vortical cavitation using synchrotron radiation journal January 2018
Three-dimensional flow structure and string cavitation in a fuel injector and their effects on discharged liquid jet journal March 2019