An experimental investigation of the effects of swirling and pulsing the flow through an axisymmetric duct.
Leestma, David Cornell
Hokenson, Gustave J.
MetadataShow full item record
It is known that the presence of swirl in a flow stream can affect heat and mass transfer rates, and pulsatile flow has important aspects in physiological studies and in non-steady turbulent flows. This investigation consisted of an experimental study of the generation and decay of swirling flow in a duct utilizing a new method of swirl generation, and the measurement of the fluctuations imposed on the steady turbulent flow profile by pulsing the flow in a duct. New results were obtained that gave insight into the effects of swirling and pulsing the flow through an axisymmetric duct.
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Showing items related by title, author, creator and subject.
Why do model tropical cyclones grow progressively in size and decay in intensity after reaching maturity? Kilroy, Gerard; Smith, Roger K.; Montgomery, Michael T. (Meteorological Institute, Ludwig Maximilians University of Munich, 2015);The long term behaviour of tropical cyclones in the prototype problem for cyclone intensification on an f -plane is examined using a nonhydrostatic, three-dimensional, numerical model. After reaching a mature intensity, ...
Chang, Chris; Alves, Fabio; Karunasiri, Gamani (2016);Recently a silicon controlled rectifier (SCR)-based circuit that generates self-terminating voltage pulses was employed for the detection of light and ionizing radiation in pulse mode. The circuit consisted of a SCR ...
Sarpkaya, Turgut (Monterey, California. Naval Postgraduate School, 1970-07-30); NPS-59SL007IAThe results of an experimental investigation of the characteristics of stationary and travelling vortex breakdowns in swirling flow in a diverging cylindrical tube are presented and discussed. Basically, three types of ...