Transition to Meandering Rivulet Flow in Vertical Parallel-Wall Channels
While there have been many studies of gravity-driven rivulet flow over an external surface, treatment of internal rivulets has been sparse. A notable exception is the analytical and experimental study by Anand and Bejan [1]; they derived an approximate solution for a laminar rivulet developing between two parallel vertical planes and employed it to examine the transition to a meandering flow. For rivulets flowing between closely spaced plates, the velocity becomes "slow" (i.e., "low" Reynolds number) and an approximately fully-developed flow at its terminal velocity can be reached in a short distance. Conceptually, this value can be derived from the analysis of Anand and Bejan. However, for cases where the inlet volumetric flow rate Q is sufficiently high that the rivulet becomes wide relative to the plate spacing, a simple treatment can describe the resulting flow.
- Research Organization:
- Idaho National Laboratory (INL)
- Sponsoring Organization:
- DOE - EM
- DOE Contract Number:
- AC07-99ID13727
- OSTI ID:
- 912243
- Report Number(s):
- INEEL/JOU-03-01364
- Journal Information:
- Journal of Fluids Engineering, Journal Name: Journal of Fluids Engineering Journal Issue: 3 Vol. 126; ISSN JFEGA4; ISSN 0098-2202
- Country of Publication:
- United States
- Language:
- English
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