000			01915nam a22001577a 4500
082			_a621
100			_aSardar, Hassan _9122663
245			_aExperimental Study of Lings Airways / _cHassan Sardar
264			_aIslamabad : _bSMME- NUST; _c2022.
300			_a55p. _bSoft Copy _c30cm
500			_aBreathing is phenomenon essential for every mammal on Earth. Key role of respiratory system is transmission of vital gases between air and blood. Conventionally some macroscale techniques for flow visualization in trachea-bronchial region was achieved by using 3D printing of idealized/realistic airways model. Due to limitations in fabrication and CT image resolution, limited amount of experimental study is done on bronchial region. We fabricated simplified model of terminal bronchi airways by using polydimethylsiloxane. Micro-fluidic channel is fabrication by using the 3D printed molds via SLA printer (FormLabs 3+ with layer thickness of 50 μm). The mold is then used to fabricate transparent channel of PDMS which is good for visualization of flow. It is first of its kind of fabrication of terminal bronchial airways by using microfluidic chip fabrication method. Moreover, the chips fabricated using the PDMS have some paybacks like we can easily visualize flow passing through the airways. We use syringe pumps for flow of three breathing conditions sleep, normal and exercise. We demonstrated airways focusing using microscope and visualized fluid flow by using particle image velocimetry method. The statistics evidence good agreement with our experimental results and simulation results from the literature. The results shows that turbulence kinetics energy decreases by using pressurized meter dose inhaler.
650			_aMS Mechanical Engineering _9119495
700			_aSupervisor : Dr. Emad Uddin _9119529
856			_uhttp://10.250.8.41:8080/xmlui/handle/123456789/30569
942			_2ddc _cTHE
999			_c609114 _d609114