Laser/fluorescent dye flow visualization technique developed for system component thermal hydraulic studies
A novel laser flow visualization technique is presented together with examples of its use in visualizing complex flow patterns and plans for its further development. This technique has been successfully used to study (1) the flow in a horizontal pipe subject to temperature transients, to view the formation and breakup of thermally stratified flow and to determine instantaneous velocity distributions in the same flow at various axial locations; (2) the discharge of a stratified pipe flow into a plenum exhibiting a periodic vortex pattern; and (3) the thermal-buoyancy-induced flow channeling on the shell side of a heat exchanger with glass tubes and shell. This application of the technique to heat exchangers is unique. The flow patterns deep within a large tube bundle can be studied under steady or transient conditions. This laser flow visualization technique constitutes a very powerful tool for studying single or multiphase flows in complex thermal system components.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 7074829
- Report Number(s):
- CONF-880772-1; ON: DE88012008
- Resource Relation:
- Conference: 3. international symposium on refined flow modelling and turbulence measurements, Tokyo, Japan, 26 Jul 1988; Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
22 GENERAL STUDIES OF NUCLEAR REACTORS
FLOW VISUALIZATION
MEASURING METHODS
MULTIPHASE FLOW
NUCLEAR POWER PLANTS
COOLING SYSTEMS
COOLANTS
HEAT EXCHANGERS
HYDRAULICS
LASERS
PIPES
STEADY-STATE CONDITIONS
STRATIFICATION
TEST FACILITIES
TRANSIENTS
VORTEX FLOW
ENERGY SYSTEMS
FLUID FLOW
FLUID MECHANICS
MECHANICS
NUCLEAR FACILITIES
POWER PLANTS
THERMAL POWER PLANTS
420400* - Engineering- Heat Transfer & Fluid Flow
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