A study on some periodically oscillating flows in a circular pipe (Experimental velocity distributions)

Mixing Mechanism near the Nozzle Exit in a Tone Excited Non-Premixed Jet Flame

“…They showed that the heat transfer is seen to either increase or decrease over the steady flow value depending on the frequency parameter in the downstream fully-established region. Experimental verifications have been attempted over only a limited range of the pulsating flows by using various techniques (Clamen and Minton, 1977;Yoshiki et al, 1986;Gaver III and Grotberg, 1986). However, most of these studies have been limited to the flow conditions which can be achieved in the pulsating flow in the absence of combustion, whether the flow is laminar or not.…”