Turbulence Modelling

Turbulence Modelling | RMIT University
(Transcript with notations)

VISUAL: Centred on screen on a white background: Turbulence Modelling. Studying wind to assist building design and energy harvests in cities. Centred at bottom of page: RMIT University logo.

VISUAL: Camera (probably mounted on a drone) as it flies forwards and on its right is the RMIT’s Leo Foster Building (220) with its large convex wall façade covered in large orange tiles with three levels of windows and sandwiched between two stone façade walls.

VISUAL: Continuation of the scene as camera on drone passes over the end of the Leo Foster Building, past a sky bridge linking an adjoining red brick three level building (Building 202 – John W Ross Building). In the background the tops of gum trees can be seen above the rooftop. Text on the bottom of the screen reads: Stateoftheart modelling techniques are helping researchers to identify areas of rapid airflow around buildings.

VISUAL: A 3D black and white image of a group of different sized and shaped buildings rotates through 180 degrees and stops. Text on the bottom of the screen reads: Stateoftheart modelling techniques are helping researchers to identify areas of rapid airflow around buildings.

VISUAL: Same image as before now airflow travelling around and over the buildings is represented in different shades of blue and green (the simulated air flow is moving from the bottom left corner to the top right of the screen. Text on the bottom of the screen reads: Stateoftheart modelling techniques are helping researchers to identify areas of rapid airflow around buildings.

VISUAL: Same image as before with airflow continuing to travel around and over the buildings represented in different shades of blue and green (still moving from the bottom left corner to the top right corner of the screen). Now, text on the bottom of the screen reads: Scientists have traditionally built smallscale city replicas and testing them in wind tunnels.

VISUAL: Same 3D black and white image of the buildings of different sizes and shapes. Text on the bottom of the screen reads: Scientists have traditionally built smallscale city replicas and testing them in wind tunnels.

VISUAL: Same image as before now airflow is travelling around and over the buildings represented in different shades of almost all blue and a little bit of lime green (still moving from the bottom left corner to the top right corner of the screen). Text on the bottom of the screen reads: Scientists have traditionally built smallscale city replicas and testing them in wind tunnels.

VISUAL: Same 3D black and white image pivots 90 degrees to a sideon profile. Text on the bottom of the screen reads: Those timeconsuming and expensive processes are gradually being replaced with these numerical flow simulations.

VISUAL: Same image as before and now airflow is travelling up and over side profile of buildings from the left to the right of the screen. The strongest currents are blue in behind the buildings, then light blue, green and some yellow is at the higher range on the screen and the colour red is at the top of the screen way above the airflow over the buildings. Text on the bottom of the screen reads: Those timeconsuming and expensive processes are gradually being replaced with these numerical flow simulations.

VISUAL: Same 3D black and white image pivots around until camera is looking directly down at the 3D image. Text on the bottom of the screen reads: Those timeconsuming and expensive processes are gradually being replaced with these numerical flow simulations.

VISUAL: Same image as before but now airflow is travelling around sides of the buildings with same colourings moving from the left to the right of the screen. Text on the bottom of the screen reads: also known as Computational Fluid Dynamics (CFD).

VISUAL: Video as camera drone flies backwards over roof of RMIT’s Bundoora Biosciences Building (223) which is a long building with over 10 extraction pipe chimneys running in a line along the spine of the roof. In the far distance cars are travelling along McKimmies Road and there is a red athletics running track to the right of the screen. Text on the bottom of the screen reads: Using these simulations, the research team could visualise the shape of updrafts as they developed over buildings.

VISUAL: Close up of the tallest building in the 3D black and white image. There are three levels of coloured bands: the lower level has five bands; the middle level has four; and the top level has seven. The bands look like a long picket fence with the top of the picket fence being arrows pointing towards the right of the screen. Each of these bands are moving independently in a slow wavelike motion and represent the airflow and updrafts occurring at the top half of the building. Text on the bottom of the screen reads: Using these simulations, the research team could visualise the shape of updrafts as they developed over buildings.

VISUAL: Same image as before but only the lower level bands are shown with a gentle wave like motion. Text on the bottom of the screen reads: Using these simulations, the research team could visualise the shape of updrafts as they developed over buildings.

VISUAL: Same image as before but only the centre level bands are shown, gently moving in the same wavelike motion. Text on the bottom of the screen reads: This research open possibilities for innovation in building design.

VISUAL: Same image as before but only the top level bands are shown moving in a more larger wavelike motion compared to the air movement on the lower level bands. The arrows on the band closest to the building are a red colour and the arrows point upwards showing upwards movement of air is stronger at this point. Text on the bottom of the screen reads: This research open possibilities for innovation in building design.

VISUAL: Black and white 3D image of buildings, as seen earlier in the video with small amount of airflow (which looks more like smoke billows) moving over them. Text on the bottom of the screen reads: This research open possibilities for innovation in building design.

VISUAL: Same image as before but now camera zooms in closer on buildings. Text on the bottom of the screen reads: Buildings can be designed to enhance airflow for ventilation.

VISUAL: Same image as before but camera has zoomed out more. Text on the bottom of the screen reads: Buildings can be designed to enhance airflow for ventilation.

VISUAL: Close up of top of 3D black and white building with three coloured horizontal levels – red is closest to the building, then yellow, green and lastly blue (furthermost from the building). Text on the bottom of the screen reads: and turbines placed specifically to harvest free power for lowenergy electronics.

VISUAL: Camera (possibly mounted on a drone) flies forward directly over RMIT Bundoora campus building with a clock on the cement wall facia (possibly Building 205) and moves over the roof to focus on the RMIT University logo on top of The Siddons Building (201) which is a 10storey building. The screen fades to black.

VISUAL: RMIT UAS Research Team. Researchers: Dr Abdulghani Mohamed, Professor Simon Watkins, Dr Reece Clothier. External Researchers: Dr Robert Carrese, Professor David Fletcher.

VISUAL: Centred on page: Relevant Publications. Underneath that: Mohamed A., Carrese R., Fletcher D., and Watkins S. (2015) ‘Scaleresolving simulation to predict the updraught regions over buildings for MAV orographic lift soaring’. Journal of wind engineering and Industrial Aerodynamics – Vol 140, pp 34-48. And centred underneath that: White C., Lim E.W., Watkins S., Mohamed A., and Thompson M. (2012) ‘A Feasibility Study of Micro Air Vehicles Soaring Tall Buildings.’ Journal of Wind engineering and Industrial Aerodynamics – Vol 103

VISUAL: Centred on the page: RMIT University logo. Centred underneath that: www.rmit.edu.au. Centred in fine print at bottom of page: This video features the song ‘Annie’ by Ben Benny and is used under licence.

End of video

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