Awards
Awards are a significant honor that ILASS-Americas
bestows upon authors at its annual conference.
The W. R. Marshall Award recognizes the best overall conference paper - based primarily on its significance to the field and strength of the technical content. This award provides payment of open access fees if the paper is published in the Journal of Atomization and Sprays.
The Harold C. Simmons Award provides a $2,000 prize to the student who has made the best presentation - with an emphasis on clarity, delivery and visual aids; but also considers technical content and knowledge of the subject.
Decisions are based on individual nominations as well as a combined score from a jury composed of session chairs and experts in the field.

W. R. Marshall Award
The W.R. Marshall Award is named in honor of W. Robert Marshall, who had a 40-year career on the UW-Madison faculty, starting in 1947. He also served as Dean of the College of Engineering from 1971 to 1981. Bob Marshall was world renowned for his research in atomization and spray drying and he served as Director and President of the American Institute of Chemical Engineers. He was thesis advisor to many well-known UW-Madison alumni in the field of sprays, such as William Ranz and Roger Tate. Roger was one of ILASS's founding fathers.
As Dean of the College of Engineering, he worked at strengthening the school’s international ties and developed programs to help women and minorities enter the field. As Director of the University Industry Research program, he saw the potential between academia and industry — and brought both together for collaborative research efforts.
Bob served as Director and President of the American Institute of Chemical Engineers and mentored ILASS’s own Roger Tate — one of the Institute’s founding fathers.
View the Award Winners Here
2019
Robin Hellmann, Paul Jochmann, Phillippe Leick, Karl Georg Stapf, Erik Schünemann, and D. ThéveniMulti-objective optimization of high-pressure gasoline injector nozzles using Genetic Algorithms coupled with Computational Fluid Dynamics (CFD): exploiting the manufactural design space
Paper presented at ICLASS-2018
2018
Yi Chen, Daniel GuildenbecherQuantitative, Bias-Corrected Measurements of Droplet Position, Size, and Velocity with Digital In-Line Holography
Paper presented at ICLASS-2108
2017
Eli Baldwin, Ronald Grover, Daniel Duke, Katarzyna Matusik, Alan Kastengren, Christopher Powell, Scott Parrish, and David SchmidtString Flash-Boiling in Flashing and Non-Flashing Gasoline Direct Injection Smulations with Transient Needle Motion
Paper presented at ILASS-2016
2016
Michael Stranzinger, Nestec, Ltd.Film Stabilization as Key Step of Atomization Process for Spray-Drying of Highly Concentrated Emulsions or Suspensions
2015
Jeff Wegener, UCLA, David Forliti, Sierra Lobo, Inc., Ivett Leyva, AFRL/RQRE, Doug Talley, AFRL/RQRCReceptivity of a Cryogenic Coaxial Jet to Acoustic Disturbances
2014
Daniel Duke, Alan Kastengren, and Christopher Powell, Argonne National LaboratorySynchrotron X-Ray Measurements of Cavitation
2013
P. Khare, D. Ma, X. Chen, and V. YangBreakup and Dynamics of Liquid Droplets
2012
Rainer Dahms, Lyle Pickett, and Joseph Oefelein (Sandia National Laboratories)A Dense Fluid Approximation for the Simulation of Diesel Fuel Injection
2011
James McCarthy, R. Daniel Bamber, and Steve Ambrose (Eaton Corporation)Exhaust Tailpipe Fuel Spray Optimization and Fuel Usage Rates for Operating an Exhaust Aftertreatment System on Heavy-Duty Diesel Powered Engine
2010
Neerav Abani and Rolf Reitz of the University of Wisconsin-MadisonModeling Sub-Grid Scale Mixing of Vapor in Diesel Sprays using Jet Theory
2009
Marcus Herrmann of Arizona State UniversityOn Simulating Primary Atomization Using the Refined Level Set Grid Method
2008
Christopher Brown, Ulises Mondragon, and Vincent McDonell (Energy Research Consultants)Investigation of the Effect of Injector Internal Geometry on the Penetration of a Plain Liquid Jet into a Subsonic Crossflow
2007
D. W. Davis, B. Chedroudi, and D.G. TalleyBehavior of a Rocket-Like Coaxial Injector in an Acoustic Field
2006
K. Lee, F. J. Diez, G. M. Faeth, University of Michigan, C. Aalburg,G.E. Global, K.A. Sallam,Oklahoma State UniversityBreakup of Round Turbulent Liquid Jets in Air Crossflows
2005
J.E. Labs and T.E. Parker, Division of Engineering, Colorado School of Mines, Golden, Colorado 80401 USAMultiple Scattering Effects on Infrared Scattering Measurements used to Characterize Droplet Size and Volume Fraction Distributions in Diesel Sprays
2004
D. Wang and C.F. Lee, Department of Mechanical and Industrial Engineering, University of Illinois at Champaign-Urbana, Urbana, ILA Model for Droplet and Spray Vaporization Under Elevated Pressure Conditions Using Continuous Thermodynamics
2003
K.-C. Lin, P. J. Kennedy: Taitech, Inc., Beavercreek, Ohio 45430, T. A. Jackson: Air Force Research Laboratory, Propulsion Directorate Wright-Patterson AFB, Ohio 45433, USAA Review on Penetration Heights of Transverse Liquid Jets in High-Speed Flows
2002
Soteriou, Andrews, Torres, Smith, & Kunkulagunta Delphi Diesel Systems, UKThrough the Diesel Nozzle Hole -- a Journey of Discovery

Harold C. Simmons Award
Harold C. Simmons, a model leader of relentless energy and desire, was the first chairperson of ILASS-Americas and an industry pioneer in spray nozzle design.
Hal spent most of working career at Parker Hannifin — entering as a staff engineer but eventually leading initiatives to develop fuel nozzles for a multitude of gas turbine engines, valves and engine control systems for jet engines, designing rocket engine controls, and fuel nozzles for supersonic jet engines. Upon retirement, Hal held 87 patents worldwide.
Once retired, he championed the formation of ILASS-Americas and served as the founding Chair at the first meeting in Madison in 1987. He worked tirelessly with other experts of spray technology to advance the organization and its mission. The participation of students in ILASS-Americas was a cornerstone of his professional ideals. This award recognizes these principles and is generously sponsored by Parker Hannifin.
View the Award Winners Here
2019
William Doak (Advisor - P. Chiarot)Charged Liquid Jet Dynamics of a Dielectric Fluid
Paper presented at ICLASS-2018
2018
Yu-Hung Changti (Advisor - Vigor Yang)Spatial-Temporal Flow Dynamics Prediction in a Large Design Space via Data-Driven Method
Paper presented at ILASS-2017
2017
Gina Magnotti (Co-Author Caroline Genzale)Characterization of Diesel Spray Breakup Models Using Visible and X-Ray Extinction Measurements
Paper presented at ILASS 2016
2016
Pascal Guillet (Co-Authors Erich Windhab and Alessandra Kessler)Laboratory of Food Processing Engineering, ETH Zurich Production of Substructured Fat Systems by Co-spraying of Two Different Fat (-emulsions) with Very-low Emulsifier Concentrations and Controlled Fat Polymorphism
2015
Benjamin Halls, Department of Mechanical Engineering, Iowa State University (Co-Authors Terrence Meyer, Alan Kastengren)X-Ray Fluorescence Measurement of Mixing in Impinging Jets
2014
Mark Owkes, Sibley School of Mechanical and Aerospace Engineering, Cornell University (Co-Author O. Desjardins)Consistent and Conservative Computational Framework for High Density Ratio Simulations
2013
D.T. Ryddner, Department of Mechanical Engineering, University of Madison, Wisconsin Madison, (Co-Author JM.F. Trujillo)A Fully Resolved UWS Droplet Simulation
2012
Suraj Deshpande, University of Wisconsin-Madison (Co-Authors Jia Gao and Mario Trujillo)Characteristics of a Hollow-Cone Spray in Crossflow
2011
Samir Tambe, University of Cincinnati (Co-Authors San-Mou Jeng)Three Dimensional Penetration and Velocity Distribution of Liquid Jets Injected Transversely into a Swirling Crossflow
2010
Matthew Svreck, Stanford University (Co-Authors S.L. Miller and C.F. Edwards)Effect of Extreme Compression on Diesel Spray Penetration and Dispersion
2009
Anita Ramirez, University of Illinois--Chicago (Co-Authors: S. Som, S.K. Aggarwal (also UIC) and A. Kastengren, E. El-Hannouny, D. Longman, C. Powell, Argonne National Laboratory)Quantitative Measurement of Diesel Fuel Spray Characteristics in the Near-Nozzle Region of a Multi-Hole Injector
2008
Andre McDonald, University of Toronto (Co-Authors Sanjeev Chandra, University of Toronto, Larry Rosenzweig, GE Global Research, Christian Moreau, National Research Council Canada)Impact of Plasma-Sprayed Particles on Textured Silicon Wafers
2007
James Smith, (University of Michigan) (Co-Author Volker Sick)Real-Time Imaging of Fuel Injection, Ignition, and Combustion in a Direct-Injected Spark-Ignition Engine
2006
Brandon Masuda, University of California, Irvine (Co-Authors Vincent McDonell, UC Irvine; Gary Oskam Solar Turbines)Liquid Jet Injected into a Crossflow at Elevated Temperature and Pressure
2005
R. Branam, Department of Aerospace Engineering, The Pennsylvania State University, University Park, PA 16802Molecular Dynamics Simulations of Supercritical Jet Mixing
2004
A. Wadhwa, Purdue University, West Lafayette, IN 47907-2014, USAA Hybrid Compressible-Incompressible Numerical Method to Compute Transient Flows Past Droplets
2003
Vala Mehdi-Nejad, University of TorontoBubble Entrapment During Droplet Impact