The present study is concerned with heat transfer characteristics of forced convective flows over a transversely oscillating cylinder. The effect of oscillation of the cylinder on heat transfer coefficient and flow pattern is evaluated by experimental measurement. A modified transient test method and a flow visualization technique are employed to determine the heat transfer coefficient and to observe the flow pattern, respectively, for various dimensionless oscillation frequencies(Sc), dimensionless oscillation amplitudes (A/D), and Reynolds numbers (Re). The ranges of these parameters considered in this study are 0≤Sc≤0.65, 0≤A/D≤0.628, and 0≤Re≤4000. Results show that the heat transfer coefficient can be significantly increased by the oscillation of the cylinder. And, two effects that enhance the heat transfer performance are found, namely the lock-on effect and the turbulence effect. A maximum 34 percent increase in heat transfer is found within the parameter ranges considered in this study.
|Number of pages||10|
|Journal||American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD|
|Publication status||Published - 1994|
All Science Journal Classification (ASJC) codes
- Mechanical Engineering
- Fluid Flow and Transfer Processes