Environment of Wind


Teresa Traunsteiner

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The Nozzles:

In the 18th century Venturi Giovanni Battista developed the Venturi Nozzle. The Venturi and the Laval nozzle show the effect of this phenomenon. In both there is fluid which flows in the pipe through the crosssection which is smaller where it gets quicker and comes out again. The Venturi nozzle is used for example when air flows through the pipe and in the smallest crosssection point there is so much pressure that it creates a depression and pulls another liquid or gas from this pipe up and along the flow out of the pipe. The Laval Nozzle works the same way as the Venturi and is often used for example by roked engines. So if you scale down the section A of the pipe the speed v of the flow, because the mass must be constant, must come out the same as it gets in. But also the speed can slow down if the section gets bigger. This devines the continuity law  m = p*v*A (mass  = pressure * speed * Area).

Project:

In my Project I created six cones or nozzles with different radiens and crossections. The lower nozzles have got a bigger radiens than the upper ones, the reason is the windspeed, which is higher in the upper levels. The maindirection of the cones is from West to South, the upper cones are rotated between North-West and South-West. Through this way of building there is a constant windspeed in all six nozzles, from the lowest to the highest one. 

All six nozzles are connected through one centerline and a mainstaircase with four elevators. In each nozzle there are approximately 200 units, in each cone the units from the ground to the middle are connected in the inside, and from the middle to the top the connectionways lay outside. The size of one unit is about 50 squaremeters, through the constant change of air the inhabitants experience unspoiled air every day.