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

Editor: Prof. Rolf D. Reitz
Mechanical Eng. Dept.
University of Wisconsin
Madison, WI 63706

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Newsletter # 15 - April, 1993


The Sixth ILASS Conference on Liquid Atomization and Spray Systems will be held May 17-19, 1993, at the Worcester Marriott Hotel, Worcester, Massachusetts (phone: (508) 791-1600). A special conference rate of $69 per night is available for reservations made directly with the hotel before April 22, 1993. Indicate that you will be attending the ILASS - Americas 93 Conference to receive the reduced rate. The Worcester Marriott is in the downtown business district, five miles from the Worcester Airport and one hour from either Logan International Airport in Boston or Bradley International Airport in Hartford. Knights Limousine Service (phone (800) 822-5456) offers taxi service from Logan Airport ($23 per person for reservations made at least 2 days before arrival).

Conference Registration

The conference registration fee for ILASS Members is $150 if received before April 30, 1993 ($175 after this date). Non-members can also qualify for the reduced registration fees by joining ILASS - Americas concurrently with registering for the conference and by paying a one-time fee of $20. The registration fee includes the cost of coffee breaks, conference proceedings, and a one-year personal subscription to Atomization and Sprays, the official journal of the international ILASS organizations. Participants are also encouraged to register for the buffet dinner on Monday ($18) and the banquet on Tuesday ($25). More details about registering for the conference are available from Rick Slagle (Local Arrangements Chairman, Oxford Lasers, Inc., P.O. Box 2620, Acton, MA 01720-6620 (phone: (508) 264-9110, fax: (508) 263-2868). On-site registration will also be available at the meeting starting at 6:00 pm on Sunday, May 16, 1993.

Technical Program at ILASS-93

The technical papers to be presented at the ILASS-93 conference have been organized into six sessions: Spray Structure, Agricultural Sprays, Reciprocating Engine Sprays, Instrumentation, Atomization Processes and Spray Modeling. In addition, time has been allocated for Poster Papers and Exhibits each day of the meeting. Time has also been set aside for meetings of technical committees: 1-1/2 hours will be devoted on Monday to Fundamental subjects and 1-1/2 hours on Tuesday will be devoted to Applied and Industrial subjects. The chairmen of the Technical Committees will be contacting members of Technical Committees, suggesting topics for the agenda and programs of activities for each Committee. The current committees and Chairpersons are: Physics of Atomization (N. Chigier), Spray Combustion (C. Edwards), Spray Measurements (S. Samuelsen), Spray Modeling (J. Bellan), Agricultural Sprays (A. Hewitt), Diesel Sprays (R. Reitz), and Industrial Sprays (D. Senser).

The Technical Committees reflect the specialist interests of ILASS members. The names, Chairmen and number of Technical Committees will change with time, particularly as ILASS membership increases. A new Agricultural Sprays Committee was formed in 1992 with Andrew Hewitt, New Mexico State University, as Chairman. As a result of Dr. Hewitt's efforts there has been an increase in ILASS membership and, as noted above, there will be a separate session on Agricultural Sprays at the Conference. A new Technical Committee on Metal and Ceramic Sprays used for Coatings, Manufacturing Processes, Composites and Powder Technology is being formed by Enrique Lavernia, Department of Mechanical and Aerospace Engineering, University of California, Irvine, CA 92717-3975.

Members are strongly encouraged to take active roles in their Technical Committees, suggesting topics for discussion, writing reviews and fostering communication in each specialist area. Reports of activities should be sent to Rolf Reitz (Mechanical Engineering Department, University of Wisconsin-Madison, 1500 Johnson Drive, Madison, WI 53706 (phone: (608) 262-0145 fax: (608) 262-6707) for inclusion in future Newsletters.

Invited Speakers at ILASS-93

Three speakers have been invited to present Keynote Lectures at the Worcester Conference. S. Londerville, Coen Burner Company "Spray Research for Boiler and Furnace Applications" Rolf Reitz, University of Wisconsin-Madison "Advances in Internal Combustion Engine Modeling" W.J. Dodds, General Electric Company "Spray Challenges in the Gas Turbine Industry"

Industrial Participation at ILASS-93

Recommendations were made at the ILASS-Americas-92 Conference in San Ramon to actively encourage more industrial participation in ILASS. In response to this recommendation, two of the invited keynote speakers at the ILASS-Americas-93 Conference are from the a) Boiler and Furnace and b) Gas Turbine Industries. Out of 47 papers that will be presented at ILASS-Americas-93, 15 papers are authored or co-authored by engineers from industries. Members of ILASS are urged to encourage engineers from industry to attend ILASS Conferences, become members of ILASS Technical Committees and submit papers to the Journal Atomization and Sprays.

ILASS-Americas Membership

As a direct result of the very successful ILASS Americas Conference in San Ramon in May 1992, the number of members of ILASS Americas increased from 248 in 1992 to 295 in 1993. 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 Scott Samuelsen (Director, 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 Scott Samuelsen.

Atomization and Sprays JOURNAL

One hundred thirty manuscripts have been submitted to Atomization and Sprays. There is a steady flow of submission of manuscripts from members, boosted by the ICLASS and ILASS Americas, Europe, Japan and Korea national conferences. All manuscripts are sent to three experts for review and for recommendations for revision or rejection . Topics include an increasingly wider spectrum, covering Theory, Analysis, Computation, Instruments, Measurements and Industrial Applications. ILASS members are encouraged to submit manuscripts and also to submit their names for reviewing of manuscripts to Norman Chigier (Carnegie Mellon University, Department of Mechanical Engineering, Schenely Park, Pittsburgh, PA 15213 (phone: (412) 268-2498 fax: (412) 268-6421). Most libraries are faced with heavy reductions in their budgets for journals. In this climate, where journal subscriptions are being canceled by libraries, it is very important for the survival of the journal for members to argue the case with the librarians and library committees at their institutes and universities, to subscribe to Atomization and Sprays.

ILASS Americas 94 and 95

The Board of ILASS Americas is requesting proposals for hosting of future ILASS Americas Conferences which will be held in May, each year. Members of ILASS-Americas who are ready to volunteer hosting an ILASS-Conference, which includes making all the local arrangements, should send a proposal to Norman Chigier or Scott Samuelsen.


New national ILASS Institutes have been formed in China. Taiwan and Hong Kong. An executive committee of ILASS-Asia will be held in Tokyo on June 16, 1993. Norman Chigier will be doing a round-the-world tour, meeting with ILASS Committees and participating in local ILASS Workshops as follows: Israel, May 19-31; Italy, June 1-6; Taiwan, June 9-15; Japan, June 15-18; China, June 18-27; Korea, June 28-29; Japan, June 29-July 2.

Japan - The first Symposium (ILASS-Japan) was held December 21 and 22, 1992. A new journal, Atomization , Journal of ILASS Japan (in Japanese) has been founded. Copies of the proceedings of the conference and the journal (in Japanese) can be obtained from Professor Hiroyasu, University of Hiroshima. Japan has annual national conferences.

Europe - The ILASS-Europe-92 Conference was held at the Shell Laboratories, Amsterdam, September 30 - October 2, 1992. Copies of Proceedings can be obtained from M. Afghan, Koninklijke/Shell Laboratorium, Postbus 3003, 1003 A A, Amsterdam, The Netherlands. ILASS-Europe-93 will be held in Prague, August 29 - September 3, 1993. The newly elected chairman and secretary of ILASS Europe are Michel Ledoux and Christopher Dumouchel at the University of Rouen, France.

Israel - ILASS-Israel, held its first Workshop at the Technion, Haifa, December 2, 1992. ILASS-Americas Chairman Norman Chigier participated and presented seminars at the Technion, Haifa and at universities in Tel Aviv and Beersheva. Josette Bellan presented the Plenary Lecture at the Israel Aeronautics and Astronautics Conference March 3, 1993. She met with ILASS-Israel members at the Technion.

Taiwan - Dr. Paul Chiu, Director of the Institute of Aeronautics and Astronautics at the National Cheng Kung University in Taiwan organized an ILASS workshop, June 27, 1992, with seminars presented by Norman Chigier and Paul Chiu. A new Center for Spray Combustion and Fuel Injectors has been founded with participation from university, government and industry. Sessions on sprays are being organized for the Pacific International Conference on Aerospace Science and Technology, Taiwan, December 6-9, 1993.

Overseas Visitors - Professor Paul Chiu from Taiwan visited ILASS-Americas Chairman Norman Chigier at CMU September 1992 to discuss the founding of ILASS Taiwan and the establishment of a new center on spray combustion in Taiwan. Professor Hiroyasu visited CMU January 11, 1993 to participate in a workshop on sprays and present a seminar on Diesel Engine Sprays.


ILASS Europe are hosting the sixth International Conference on Liquid Atomization and Spray Systems ICLASS-94 Conference, July 18-22, 1994 at the Palais des Congres in Rouen, France. Paper abstracts should be submitted by June 30, 1993 to the Chairman of the Papers subcommittee: Dr. Andrew Yule, Department of Mechanical Engineering, P.O. Box 88, Manchester M60 1QD, United Kingdom (phone: (44) 61 200 3705 or 3724 fax: (44) 61 200 3723. The full version of accepted papers will be due by November 30, 1993. To be placed on the mailing list for ICLASS-94 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). ILASS-Americas members are encouraged to submit papers and participate in ILASS-Europe and ICLASS conferences.


ASME Winter Annual Meeting 1993 The fluids engineering, heat transfer and combustion divisions of ASME are holding a symposium on Fluid Mechanics and Heat Transfer in Sprays at the ASME Winter Annual Meeting, New Orleans, November 28 - December 3, 1992. Norman Chigier will present the keynote lecture "Spray Science and Technology."


The International Union of Theoretical and Applied Mechanics accepted the proposal to hold an IUTAM Conference on Spray Combustion to be held in Taiwan in December 1994. Co-chairmen: Norman Chigier and Paul Chiu.

International Combustion Symposium

The next International Symposium of the Combustion Institute will be held at University of California, Irvine, August 1-6, 1994. ILASS members are encouraged to submit papers on sprays and spray combustion to Elaine Oran, NRL.

Short Courses

The four-day short course on Atomization and Sprays will be held at the Worcester Marriott Hotel, May 12-15, 1993. The short course is specifically designed for engineers from industry. It also provides an intensive introduction to atomization and sprays.


May 12-15		Short Course, Atomization and Sprays, Worcester, MA
May 17-19		ILASS-Americas, Worcester, MA
Aug. 29-Sept. 3	ILASS Europe, Prague
Nov. 28-Dec. 3	ASME WAM, New Orleans

May		Short Course, Atomization and Sprays
May		ILASS Americas
July 18-22		ICLASS-94 Rouen, France
Aug. 1-6		Combustion Symposium, University California, Irvine, CA
December		IUTAM Spray Combustion, Taiwan

ASTM E29.04 Subcommittee

The ASTM E29.04 Subcommittee on Liquid Particle Characterization meeting will be held in conjunction with the ILASS-93 conference at the Worcester Marriott starting on Thursday May 20 and concluding on Friday, May 21. Contact Committee Chairman 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.


This newsletter serves as formal notice of the next Annual General Meeting of ILASS-Americas which will be held at 1:00 pm May 19, 1993 at the Worcester Marriott Hotel, Worcester, Massachusetts