Newsletter #17


ILASS - Americas

Institute for Liquid Atomization and Spray Systems - North and South America.

Editor: Dr. Chris F. Edwards
Secretary, ILASS-Americas
Combustion Applications, MS 9053
Sandia National Laboratories
Livermore, CA 94551-0969

Newsletter # 17 - April, 1994


A big HELLO to our spray community.

We are excited about ILASS-94. In addition to the traditional strong line-up of technical papers, we introduce this year the TUTORIAL WORKSHOPS (a "town hall" meeting on issues critical to our community), present a special tour of two extraordinary Boeing facilities (the icing tunnel and the 747/767 flight production line), and experience the maturing of our popular organization of technical committees. We are especially thrilled with the slate of invited KEYNOTE LECTURES on extremely important and rapidly emerging spray technologies. We look forward to seeing you at ILASS-94!

                                                                Scott Samuelsen, Chair


The Seventh Annual ILASS-Americas Conference on Liquid Atomization and Spray Systems will be held May 31- June 3, 1994 at the Red Lion Hotel, Bellevue, Washington (phone: 206-455-1300). A special conference rate of $87 per night single occupancy, $97 double, is available for reservations made directly with the hotel before May 10. Indicate that you will be attending the ILASS-Americas 94 Conference to receive the reduced rate. The Red Lion Hotel is located 20 minutes northeast of the Seattle-Tacoma International. Shuttle Express (phone 1-800-487-7433) offers frequent service between the hotel and airport ($11 for the first person, $10 for each additional person).

Conference Registration

The conference registration fee for ILASS-Americas members is $165 if received before May 10 ($185 after this date). Nonmember registration is $195 if received before this date, $215 if received after. Nonmembers can qualify for the member registration fee by joining ILASS-Americas concurrently with registering for the conference and paying a one-time membership fee of $20. The registration fee includes the cost of continental breakfasts, refreshments, bound abstracts, transportation to/from the Boeing tour, and a one-year personal subscription to Atomization and Sprays, the official journal of the international ILASS organizations. Additional details about conference arrangements may be obtained from Prof. John Kramlich, Local Arrangements Chair ILASS-94, Department of Mechanical Engineering, FU-10, University of Washington, Seattle, WA 98195 (phone: 206-543-5538, fax: 206-685-8047).

Technical Program

The technical papers to be presented at the ILASS-94 Conference have been organized into six sessions: Coatings and Materials Processing, Atomization and Spray Modeling, Performance of Spray Systems, Agricultural Sprays, Instrumentation and Measurement Techniques, Atomization Measurements, and Reciprocating Engine Sprays. Time has been allocated for Poster Papers and Exhibits each day of the meeting. Three Keynote Lectures will be presented at the conference:

  • Spray Forming Materials: Directions for the Future
    I. Anderson, Ames Laboratory, U.S. Department of Energy
  • Agricultural Sprays: Demands and Accomplishments in Precision Spraying
    K. Giles, University of California-Davis
  • Challenges of the Spray Coater
    K. J. Coeling, Nordson Corporation

    Time has been set aside for meetings of the ILASS technical committees. The Gas Turbine, Spray Combustion, Industrial Sprays, and Spray Modeling committees will meet on the first evening of the conference while the Agricultural Sprays, Physics of Atomization, Diesel Sprays, and Spray Measurements committees will meet on the second evening. Since the purpose of these committees is to foster discussion and interaction between participants with interests in specialized spray areas, all attendees are invited to participate in these meetings.

    Tutorial Workshops

    New this year, two tutorial workshops will be held on the Tuesday evening preceding the conference (7:30 pm - 9:30 pm). The topics selected for this year are: "Phase Doppler: Mass Flux Measurement" and "Spray Modeling: Trends/Expectations." Each tutorial will begin with select presentations with the majority of time dedicated to open discussion in a town meeting format. All are invited to attend and contribute to the discussions. Once you have enjoyed the reception, you can enjoy the stimulation of one of the two tutorial workshops.

    Visit to Boeing

    Friday afternoon will be devoted to a Boeing facility visit. Two stops are scheduled. The first is a tour of the Everett assembly plant where final construction of the 747 and 767 widebody aircraft takes place. This includes a walking tour through the assembly floor area. The group will then shift to Seattle for a visit to the icing wind tunnel facility at Boeing field. Transportation will be provided; the estimated time of return to the hotel is 5:30 pm. Comfortable walking shoes are a must!

    ASTM E29.04 Subcommittee

    The ASTM E29.04 Subcommittee on Liquid Particle Characterization will hold a one-day meeting on Tuesday May 31 in conjunction with the ILASS-94 conference. Contact committee chair Mr. Thomas Bassett, Bete Fog Nozzle, Inc., 50 Greenfield Street, Greenfield, MA 01302 (phone: 413-772-0846, fax: 413-772-6729) for details about the meeting.


    As a result of the very successful ILASS-Americas 1993 Conference, the number of members of ILASS Americas increased from 295 in 1993 to 404 in 1994. Each ILASS member is urged to encourage colleagues, friends and students to become members by sending $20, name, address, Fax and E-mail numbers to Prof. Scott Samuelsen (Institute for Combustion and Propulsion Science & Technology, University of California, Irvine, CA 92717). Members who have not yet submitted Fax and E-mail numbers and information on changes of address should also send details to Prof. Samuelsen.

    Atomization and Sprays JOURNAL

    The number of issues of the journal Atomization and Sprays has been increased from four to six per year to accommodate increased demand for publication of papers. Authors presenting papers at ILASS-Americas, ICLASS, and any other conferences are encouraged to prepare archival journal versions of their research and submit them to Prof. Norman Chigier, Editor of Atomization and Sprays. Members of ILASS are urged to persuade libraries of their institutions to subscribe to A&S. The annual 1994 institutional subscription rate is $200 and the personal subscription rate for member of ILASS is $60.


    At the American Society of Mechanical Engineers (ASME) Winter Annual Meeting in New Orleans, (November 28-December 3, 1993), a symposium was held on Fluid Mechanics and Heat Transfer in Sprays, sponsored by the Multiphase Flow Technical Committee of the Fluids Engineering Division, and the Heat Transfer in Energy Systems, and Heat Transfer in Fire and Combustion Systems Committees of ASME. Twenty-three papers were published in FED Vol. 178 and HTD Vol. 270 by ASME.

    At the Pacific International Conference on Aerospace Science and Technology, National Cheng Kung University, Tainan, Taiwan, R.O.C., December 6-9, 1993, several invited papers and sessions were devoted to spray science and technology. Proceedings can be obtained from Professor Paul Chiu, NCKU, Tainan, Taiwan.

    An International Symposium on Advanced Spray Combustion will be held at the Hiroshima International Conference Center, Hiroshima, Japan, July 6-7, 1994. The symposium chair is Professor Hiroyuki Hiroyasu, Department of Mechanical Engineering, University of Hiroshima. The proceedings of the symposium will be published.

    A special colloquium on spray combustion will be held at the Twenty-Fifth International Symposium on Combustion, University of California, Irvine, July 31-August 5, 1994. Dr. WiIl Bachalo will present the invited lecture.

    The International Union of Theoretical and Applied Mechanics (IUTAM) is holding a symposium on the Mechanics of Combustion of Droplets and Sprays, to be held at the national Cheng Kung University, Tainan, Taiwan, December 6-10, 1994, organized by Professors Chiu and Chigier.

    The International Counsel of ILASS will meet at ICLASS-94 in Rouen. Reports will be presented by delegates from national ILASS committees. A new president of the International Council will be appointed and recommendations will be made for ICLASS-97, to be held in Asia.


    ILASS Europe is hosting the Sixth International Conference on Liquid Atomization and Spray Systems, ICLASS-94, July 18-22, 1994 at the Palais des Congres in Rouen, France. The technical sessions will feature 141 papers organized into thirteen sessions. Four plenary lectures will also be presented:

  • Atomization: How Much Information is Enough?
    R. W. Sellens, Queen's University of Kingston
  • The Past, Present, and Future of Phase-Doppler Anemometry
    E. D. Hirleman, Arizona State University
  • Sprays in Combustion: Can we Build Models Unified with Turbulent Combustion?
    R. Borghi, University of Rouen
  • Industrial Spray Nozzles and Their Application
    L. Bendig, Lechler GmbH

    Technical visits have been scheduled to the CORIA laboratory in Rouen, SEP (the European propulsion society) in Vernon, and the Bassin des Carenes in Val de Reuil. As with previous ICLASS meetings, an exhibition of spray equipment and instrumentation will be held concurrently with the conference. A special feature of this ICLASS will be the Industrial Session to be held on the last day of the conference. The plenary lecture on that day and one of the morning sessions will be devoted exclusively to industrial spray applications. The afternoon will be devoted to the effects of industrial sprays on the environment.

    Limited support for student travel will be provided by ILASS-Americas for those students presenting papers. Inquiries and applications should be made in writing by the supervising faculty to Professor Scott Samuelsen, UCI Combustion Laboratory, University of California, Irvine CA, 92717-3550. Assurance must be provided that the student will present the paper. The amount of funding will depend upon the number of applicants requesting support and final approval by the ILASS-Americas Board of Directors. The deadline for filing is May 13, 1994.

    To obtain information regarding ICLASS-94 please contact: Dr. Christophe Dumouchel, Universite de ROUEN, URA 230/CORIA, BP 118-76 134 Mont-Saint-Aignan Cedex, France (e-mail: phone: 33 35 14 65 60, fax: 33 35 70 83 84).


    May 31-June 3       ILASS-Americas Conference
    July 6-8            Advanced Spray Combustion, Hiroshima, Japan
    July 18-22          ICLASS-94, Rouen, France
    Aug. 1-6            Combustion Symposium, University of California, Irvine
    Dec. 6-10           IUTAM Spray Combustion Conference, Taiwan


    This newsletter serves as formal notice of the Annual Business Meeting of ILASS-Americas which will be held at 11:55 pm, June 3, 1994 at the Red