PROJECT SUMMARY REPORT

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Project Title	The effects of rotation on asisymmetric gravity currents with stratified fluids
Name of Group Leader	Marius Ungarish
Home Laboratory	Technion, Haifa, Israel
E-mail address	unga@cs.technion.ac.il
Telephone	-972-4-8294366

1. Project objectives (no more than 10 lines)

The objective is to investigate the velocity field and shape of interface of high Reynolds number axisymmetric gravity currents of fixed volume (lock release) that propagate at the bottom of a stratified ambient in a rotating frame. A theoretical approach to the problem is developed in parallel to the experimental study, and comparisons are expected to provide important insights and verifications.

2. Main achievements and difficulties encountered (no more than 20 lines)

The experiments have been performed and we are processing the data. No special difficulties were encountered. Our experiment was the first after the (very sucessful, in our opinion) upgrade of the laboratory building and rotating tank, and hence some normal (in the circumstances) problems of calibrations appeared. However, the team was very patient and helpful. Overall, the number of runs we performed was smaller than planned due to the tight schedule (13 operating days) and an unexplored parameter range remains to be covered in a second stage.