• Entrainment and structure of negatively buoyant jets 

      Milton-Mcgurk, Liam; Williamson, Nicholas; Armfield, Steven; Kirkpatrick, Michael; Talluru, Krishna
      Published 2021
      Turbulent negatively buoyant jets occur when the buoyancy of a jet directly opposes its momentum, and will decelerate until its mean momentum is reduced to zero. Here, the flow reverses direction and, for an axisymmetric ...
      Open Access
      Article
    • Characterising entrainment in fountains and negatively buoyant jets 

      Milton-Mcgurk, Liam; Williamson, Nicholas; Armfield, Steven; Kirckpatrick, Michael
      Published 2022
      Turbulent fountain flow consists of two distinct stages, the initial ‘negatively buoyant jet’ (NBJ) stage, and the fully developed ‘fountain’ stage. The present study investigates both stages of the flow using particle ...
      Open Access
      Article
    • Effects of respiratory rate on the fluid mechanics of a reconstructed upper airway 

      Burchell, C; Kourmatzis, A; Zhao, Y; Raco, J; Mekonnen, T; Chan, H-K; Cheng, S
      Published 2022
      This study aims to utilise particle image velocimetry (PIV) techniques to investigate the time-dependant effects of respiratory rate in the extrathoracic airway, to show how they affect the flow field developed. There has ...
      Open Access
      Article
    • From laminar to turbulent flow in a dry powder inhaler: the effect of simple design modifications 

      SIngh, G; Tang, P; Cheng, S; Chan, H-K; Kourmatzis, A
      Published 2022
      In order to better understand powder dispersion in dry powder inhaler (DPI) devices, a new powder disperser was designed, which uses flow modifiers to alter powder fluidization behavior so as to physically replicate ...
      Open Access
      Article
    • Recent advances and applications of polymeric materials in healthcare sector and COVID-19 management 

      Singh, Rasmeet; Kaur, Jagmehak; Gupta, Kashvi; Singh, Mandeep; Kanaoujiya, Rahul; Kaur, Navneet
      Published 2022
      The coronavirus disease pandemic is considered at its worst and all nations are collectively fighting to improve global public health. In this outlook, polymers and their related materials (including plastics) are the ...
      Article