Week 8 Mid Semester

Fluiddisciwithfluidseveaeromotiliquiwidecalcubodya liweanebu

d dynamics, in phipline of fluid mechh fluid flow – the ds (liquids & gases)eral sub disciplineodynamics (the stion) and hydrodynaids in motion). Fluie range of appliulating forces andy, determining the iquid through pipther patterns, anulae in interstellar.

hysics, is the sub‐hanics which dealsnatural science of) in motion. It hases itself, includingtudy of gases inamics (the study ofid dynamics has aications, includingd moments on amass flow rate of

pelines, predictingnd understanding

‐s f

g f

g f

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EBackground

Extremes II

The Glasgoto reduce th

The Arab Wuses a systeopen and cl(sun shadinbuilding.

ow Tower is the firshe aerodynamic for

World Institute by Jeem of 240 motoriselose every hour. Theng) to control sunlig

st of its kind to rotrces acting upon it.

ean Nouvel in Paris d appetures which ey act as brise soleight entering the

tate

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PLaminar and TPhenomenon o

PrecedeTurbulent flow of fluid dynamics

ence2

Bauplatz 17 and 18 Site Analysis

3

Girih tiles are abuildings in Island their arranIsfahan in Iran

The Girih tilindiscovered by

a set of five tiles thlamic architecture. ngements found sign built in 1453

g pattern closely rmathematician Rog

hat were used in theThey are known tognificant improvem

resembles Penroseger Penrose in the 1

e creation of tiling po have been used sments starting with

e tilings which is a1970’s.

patterns for decorasince about the yeathe Darb‐i Imam sh

an aperiodic tiling

ation of ar 1200 hrine in

system

PatGeometric tilinArchitecture

tterns ang in Islamic and Structure

4

ImagesPhenomenon of fluid dynamics

Facade5

The tiling system derived from the Girih tile in Islamic architecture has been tessilated and placed in a grid. This grid can remain static whilst allowing for the individual tiles to move from side to side to allow for sunlight and ventilation to enter the building. The tiles themselves can be made from a photovoltaic material to generate energy. Each tile can move individually to allow for openings anywhere on the facade when necessary.

Tiling system in a fixed closed state Tiling system uniformly tilted15degrees for a uniform internal lighting effect

Tiling system in a state of varied tilting. This sate may be to capture the most amount of sunlight or because of the desired lighting conditions for that area of the building

Tiling system nearly fully tilted for maximum light to enter without losing any tiles

Structural grid systemConcept

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Coanda effectPhenomenon of fluid dynamics

Research7

The Coanda effect is the tendency of a fluid jet to stay attached to an adjacent curved surface that is very well shaped, the principle was named after Romanian Henri Coanda, who was the first to recognise the practical application of the phenomenon in aircraft development.

In the instance of a stream of water attracting a spoon as it flows over the bowl, the Coanda effect is a result of surface tension of Van der Waals forces plus Newton’s second and third laws. The effect, in this case, is actually caused by attractive forces. In the instance of a gas flow over a convex curved surface in ambient gas, however, the Coanda effect is a result of the momentum of the gas and entrainment of ambient gas and has nothing to do with attractive forces. As a gas flows over a convex airfoil, the gas is drawn down to adhere to the airfoil by a combination of the greater pressure above the gas flow and the lower pressure below the flow caused by an evacuating effect of the flow itself, which as a result of shear flow, rarefies the slow‐moving fluid trapped between the flow and the upper surface of the airfoil.

The principle behind the coanda effect is that liquid will stick to a smooth surface

Applying to coanda effect to an architectural structure

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Concept

Geometric tiling in Islamic Architecture

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After looking at the coanda effect, using smooth surfaces to influence the form of the building could be the basis of the internal structures. Patterns and Structure

The pattern is draped over the surfaces like water on a smooth surface evoking the look of the coanda effect

Geometric tiling in Islamic Architecture & fluid dynamics

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Concept


Concept11

Three dimensional spatial system

Looking into basic planning of the tower

Airflow can be canelled through the tower and controlled by movement of the pod system. Turbines at the top of the tower will generate energy

Physical form model of the structure

Wind turbine would generate energy

TioTiling system movingr down the facade

Pods remain uthe facade whattached to thstructural framsystem

g up

under hich is he ming

The structuralor draped ovethis concept to

C

To thesurfsysinnvenpholighup sun

To devaromesyspod

As framconwinturb

l framing system caer any form which iso weave between th

Interweaving sConcep

respond to the eleme structural facade srface tiling up and tem to allow the er building and ntilation. The surfotovoltaic collectinht available. Each tand down to colle

nlight at any time of

take advantage ovised a way to weound the freestandeans of standing ontem, the structureds within the buildin

the pods are then sming, they can ntrol airflow withinnd to the top of thbines to generate e

an be melded s applied in he pods

structural grid pt

ments around the bsystem is able to mdown on a magnetsunlight to penetrto allow the crofaces of these ting sunlight when ile can pivot left anect the maximum pf the day.

of the structural syeave the structurading pods as they n their own. By use is then supportng.

supported by the starticulate individun the tower funnelhe tower where thelectricity.

12

building, move the tic latch rate the ss flow iles are there is nd right, possible

ystem. I al frame had no sing this ting the

tructural ually to lling the here are

Tensegrity modelConcept

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A concept involving the use of the pods being supporting using some form of structural Tensegrity was the main purpose for this exercise. The concept would have a series of pods placed in a ring supported by cables. Two would be needed for the bottom for balance and one at the top to keep the pod in place and stop it from moving.

Fluid dynamics in Architecture Concept

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P

Porosity is a measmeasured as a frabetween 0 and 10

I looked into porobuilding was takinsystem with pods,of porosity. Workiwill be the next st

Research Porosity

sure of the void spaaction between 0 an00%.

sity as I began to long. As the structure, the gaps betweening out a way to brtep.

y

aces in a material, and 1 or as a percent

ook at the form my e is made up of a we them led me to theridge together the p

15

and is tage

ebbing e study pods


Concept16

The structural frame is held in place under tension from the cable ties, as two grids can be used to rest against each other.

Each individual tile can move up and down the facade system. Unused tiles can go underground if the building does not require shelter during the day Tile in place

Tile in motion exposing building

Tile angling towards the sun


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Concept

The pods can be placed within the structure. The pods are now sheltered by the external skin.

From within the pods, there would be controls for each room to allow for more or less light in that area, the facade will respond accordingly.

Pods hanging on to the structural frame of the facade

Pod exposed by the tiling system

Documents

Week 8 Mid Semester