Accession Number : AD0427728


Title :   LITERATURE SEARCH INTO METHODS OF DAMPING OUT INCIPIENT TURBULENCE IN THE FLOW OF LIQUIDS


Descriptive Note : Final rept.


Corporate Author : UNITED STATES RUBBER CO WAYNE NJ


Personal Author(s) : Thompsen, J ; Boggs, F W ; Tokita, N


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/427728.pdf


Report Date : 09 Jan 1964


Pagination or Media Count : 38


Abstract : The problem of delaying transition from laminar to turbulent flow has long been under investigation. This report presents a bibliography on the work that has been done for the last 40 to 50 years on this problem of transition, specifically for incompressible flow, over flat plates or in pipes. The articles included in this list are concerned with two questions: (1) What is the mechanism of transition, and (2) How can transition be delayed. Although an extensive amount of work has been done and is still being done on the problem of delaying transition on relatively flat surfaces by means of compliant coatings, it does not appear feasible to extend this method to pipes except to a limited extent. However, recent work has indicated that the addition of nonNewtonian additives to the flow may be a promising way of delaying transition in piping systems, such as hydraulic line, normally found in industry. It should be noted that reduction of noise in pipes is possible with the use of flexible surfaces.


Descriptors :   *BIBLIOGRAPHIES , *LIQUIDS , *TURBULENCE , COATINGS , DAMPING , FLAT PLATE MODELS , FLUID FLOW , INCOMPRESSIBLE FLOW , LAMINAR FLOW , PIPES , TRANSITION TEMPERATURE , TURBULENT BOUNDARY LAYER


Subject Categories : Information Science
      Fluid Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE