Essays about: "laminar - turbulent transition"
Showing result 1 - 5 of 9 essays containing the words laminar - turbulent transition.
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1. A Topology-Based Method for Inferring Turbulence in Unsteady Flows
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : Understanding the rise and evolution of turbulence is an important component of designing vehicles and turbomachinery that both have long life and are efficient. To this end, researchers study the complex phenomenon of turbulence. READ MORE
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2. Two-dimensional roughness and Tollmien-Schlichting waves: a study on transition
University essay from KTH/Strömningsmekanik och Teknisk AkustikAbstract : Two-dimensional (2D) roughnesses induce premature transition to turbulence in laminar boundary layers by amplifying the disturbances in the flow and promoting the development of non-linearities. The present thesis aims at furthering our understanding of this phenomenon's underlying mechanisms and elucidating the effects of the different geometrical parameters of the roughness' cross section. READ MORE
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3. Demonstration station for open water channel flow
University essay from KTH/Skolan för teknikvetenskap (SCI)Abstract : Once a year an event is being held at the fluid physics lab at KTH. One of the main purposes of this event is to awaken an interest in the visiting students from other universities, by demonstrating fluid physics phenomena. Showing the transition from laminar to turbulent flow in an open water channel is one of the demonstrations. READ MORE
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4. Experimental and CFD Study of Heat Pickup in Cooling System Hoses
University essay from KTH/Strömningsmekanik och Teknisk AkustikAbstract : This thesis investigates a process known as heat pickup which occurs in vehicle cooling system hoses. Heat pickup is an unwanted side effect of temperature differences in a car underhood compartment, whereby excess heat is tranferred into the coolant running through the cooling system hoses, affecting its operating temperature. READ MORE
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5. Flow transition prediction approaches evaluated on a single-aisle type aircraft
University essay from KTH/FlygdynamikAbstract : Nowadays, as the demand for fuel efficiency is increasing and the manufacturing techniques improved to allow the design of laminar wings, the laminar concepts are being revived and studied, and seen as one of the most promising techniques to reduce skin friction and hence the overall drag of the airframe. In order to predict the kind of benefits that could be obtained from such concepts, computational fluid dynamics (CFD) computations can now be carried out but it is necessary to be able to predict flow transition from laminar to turbulent around the lifting surfaces of the aircraft, such as the wing and the horizontal tail plane. READ MORE
