FLUID AMPLIFICATION. 2. FLOW VISUALIZATION-COMPRESSIBLE FLUIDS
Abstract
A study was made on the methods generally used in flow visualization and their applicati ns to pure fluid systems. Comparison details of the shadowgraph, schlieren, and interferometer techniques are reported; also, a generalized equation is derived for the schlieren method, relating light intensity to gas density for two-dimensional flow. Construction details are presented on two schlieren-type systems, together with illustrated results of typical images obtained. Improved visualization techniques were realized using helium, volatile liquids, and condensible vapor.A technique was developed for sealing interchangeable pure fluid elements to optical windows permitting repeated use without replacing the sealing materials or cleaning windows. Additional data will be issued on the basic principles and techniques applicable to pure fluid systems. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 20, 1962
- Accession Number
- AD0286666
Entities
People
- Jorma R. Keto
Organizations
- Harry Diamond Laboratories