Based on aerodynamics and air currents, I will experiment with how the setup of simple flat surfaces, can manipulate air currents and thus the displacement/accumulation of sand around these objects. These experiments are considered and the dynamic effects of air currents documented. Through a series of defined tasks I then attempt, through simple experiments that provide a basic knowledge and understanding of the applied dynamics and the spaces they create, to explore more complex arrangements of elements – and by using simple orthogonal-oriented surfaces to more irregularly-positioned surfaces and finally to surfaces which can be freely positioned in space.
These are some basic aerodynamic studies, using disconnected walls to observe the airflow, orientation- and arrangement of the walls to understand laminar and turbulence conditions. The test setup consists of an open box of fine sand at the bottom and a hairdryer as windsource The studies are divided into four days, where we study four arrangements of walls each day. The number of walls increases with one wall per day.
We can see the airflow straying off of both sides of the element The direct airflow onto the element creates an increasing pressure on the front, which then also creates a low pressure zone behind the element.
The airflow behaviour is changed as opposed to Element 1. The airflow is not curving equally on both sides.This could be because the airflow is much more concentrated on the upper side of the element, this causes the straight curve around the edge. While the salt on the lower side, is not getting as much airflow, resulting in the the air proceeding straight of the edge instead of going behind the element
While orienting the wall parallel to the source of wind, the airflow now shows minimal resistance, all of that resistance being on the point that is closest to the source of the airflow.
Having again moved the element slightly to one side, we can see the same kind of airflow as in element 3, but this time the airflow is not equally distrubuted
While being closely similar to Element 1,the outcome could have been different if the two elements had been moved closer or further apart.
We see an even airflow around the edges of the front element.We can also see some turbulence created in between the two walls.
Both elements are placed parallel to the wind source, with a small distance from each other.The airflow distributes on both sides of front element and a small amount of airflow gets resisted by the front of the back element.
Both Elements placed parallel with the airflow. Front element is placed slightly behind the back element.The airflow hits the front element fairly good, as opposed to the back element, which shows only minor movement on the side closer to the airflow source.
All elements are placed perpendicular to the airflow.However, all the elements are placed slightly lower and further back,than the one infront of them.The last two elements have turbulence gathering behind them.We can also see that the airflow doesn’t reach the top element at first, onlyafter a small amount of time.
The airflow is now creating a symmetrical pattern. Turbulence is created behind the two front elements and on the corner of the element behind
We now have an element placed diagonally.The walls prevent the airflow to get in between the setup, functioning as a shield. Turbulence is created at the end of the slanted wall and on the corner of the perpendicular wall
The airflow is forced in between the walls, creating a controlled airflow. Some turbulence behind the diagonal element. We can also see that the diagonal element is forcing the airflow to go past the vertical element, creating a controlled airflow
The wind spreads and surrounds the three walls behind the front, creating turbulence around the corners of the center wall. It is very similar to experiment 9, just a minor turbulence on the wall closest to the wind source
The four walls creat a symmetrical pattern, where the two front walls resist most of the airflow and a small amount is resisted by the two walls behind for the airflow that goes through.
The airflow is resisted mostly by the front wall and pushes it to the sides where the slanted walls deflect it resulting in a turbulance
The spatial composition of the walls creates a airflow around a area between the four walls. Turbulance is created at the end of the upper slanted wall infront of the wall furthest from the wind sourc