Abstract
This paper describes an analysis of the velocity field of a circular jet in a counterflow. The treatment is based on the relative motion and momentum criteria. Starting from our previously derived Chan-Lam Equation for the centreline velocity decay, the spreading of the jet in the counterflow is computed with the assumption of conserved momentum and Gaussian distribution in the radial direction of mean flow velocities. Expressions for the jet widths and radial velocity profiles are obtained. The mean velocity fields at a number of jet-to-current velocity ratios are measured in the laboratory with laser-doppler anemometry (LDA) and the results compare well with the analytical expression.
| Original language | English |
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| Pages | 223-228 |
| Publication status | Published - 1999 |
| Externally published | Yes |
| Event | Environmental hydraulics : proceedings of the Second International Symposium on Environmental Hydraulics, Hong Kong, China, 16-18 December 1998 - Duration: 1 Jan 1999 → 1 Jan 1999 |
Conference
| Conference | Environmental hydraulics : proceedings of the Second International Symposium on Environmental Hydraulics, Hong Kong, China, 16-18 December 1998 |
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| Period | 1/01/99 → 1/01/99 |