Laminar Flow Forced Convection in Ducts

Abstract

The Symposium consisted of 4 invited lectures on flow visualization techniques and 50 contributed papers.Flow visualization techniques were separated into five categories with the number of papers in each category as follows: Direct Injection Methods -18; Tuft and Wall Tracing Methods -3; Chemical Reaction and Electrical Control Methods -10; Optical Methods -16; and, Cavitation -3.Papers were limited in length such that the main text, including an author and subject index, is 413 pages.The book contains numerous flow visualization photographs and is well-prepared publication-wise in agreement with the standards applied to other texts in the Hemisphere Publishing Corporation Series in Thermal and Fluids Engineering.The volume was produced from author-prepared mats typed single-spaced on regular typing paper.The four review lectures were presented by Professors T. Asanuma (Japan), R. Reznicek (Czechoslovakia), W. Merzkirch (West Germany), and W. J. Yang (United States).These lectures were summary reports of different techniques considered popular in their respective regions.The papers by Merzkirch and Yang provide a substantial listing of relevant papers and reports on the various techniques and their application.Generally speaking, the contributed papers were written primarily to describe the authors' flow visualization techniques/applications as opposed to the presentation of detailed results and analysis of fundamental new information in fluids engineering.However, the breadth of topics covered in the presentations makes the book an interesting review of many aspects of fluid mechanics from low Reynolds number flows in pipes to Shockwaves in supersonic boundary layers.Although the symposium was not intended to be a tutorial session on the various flow visualization techniques, several authors have described their facilities and methods sufficiently to enable the novice to develop similar capabilities on their own.Personally, this reviewer would appreciate detailed reporting of the practical aspects of developing such systems.The majority of the papers in the Direct Injection Methods section of the book deal with the use of particulate tracers in air flows, such as generated by oil or tobacco smoke, DOP, and ammonium chloride.One or two papers each were presented which featured methods such as floating particles and liquid tracers in water flows, helium bubbles, optically active tracers, strobophotographic techniques and stereoscopic studies.