Essays about: "piv"

Showing result 1 - 5 of 23 essays containing the word piv.

1. 1. PIV measurements of rotational flow in a porous medium : A masters thesis in fluid dynamics and experimental mechanics

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Björn Skarman; [2022]
   Keywords : PIV; particle image velocimetry; velocimetry; refractive index matching; porous medium; rotational flow;

   Abstract : The purpose of this work is to test the feasibility of using particle image velocimetry(PIV) for measurements of flow through a porous medium, more specifically in this casea rotating bed reactor S3. The results from experiments preformed can then be usedto validate and improve computational fluid dynamics models. READ MORE

3. 2. Numerical evaluation of the ground vortex

   University essay from KTH/Teknisk mekanik

   Author : Martin Babo; [2022]
   Keywords : Turbofan engine; CFD; Flow simulation; Ground Vortex; External aerodynamics;

   Abstract : This master thesis covers the realization of a CFD calibration study regarding the numerical simulation of the ground vortex phenomenon. As part of InVIGO project (EU CleanSky2), wind tunnel test campaigns were performed using a nacelle model combined with a movable raised floor. READ MORE

4. 3. The Development of a New High Aspect-Ratio Turbulent Channel Flow Facility

   University essay from KTH/Strömningsmekanik och Teknisk Akustik

   Author : Agastya Parikh; [2020]
   Keywords : ;

   Abstract : Turbulent channel flows are of great interest for investigations of modified wall boundary conditions due to their well-understood characteristics and their broad applicability. In a reversal of typical trends, they can often be more difficult to investigate experimentally than to simulate owing to the far-reaching influence of corner effects as well as the need for development lengths in excess of 200 channel half-heights in order to produce high-quality flow. READ MORE

5. 4. Simulation of Colorless Distributed Combustion

   University essay from Lunds universitet/Institutionen för energivetenskaper

   Author : Hampus Olsson; [2019]
   Keywords : Computational Fluid Dynamics; Combustion; Gas Turbine; Emission reduction; Flameless Combustion; Colorless Distributed Combustion; Technology and Engineering;

   Abstract : Colorless distributed combustion (CDC) is a promising novel technology to reduce emissions of carbon monoxide and nitrogen oxides in gas turbine combustors. CDC features a different flame regime than conventional gas turbine combustors, associated with a distributed reaction zone and low and uniform temperatures due to dilution of combustion air with exhaust gases. READ MORE

6. 5. Enabling high-fidelity measurements of turbulent boundary layer flow over wing sections in the MTL wind tunnel.

   University essay from KTH/Mekanik

   Author : Fermin Mallor; [2019]
   Keywords : Fluid mechanics; aerodynamics; turbulence; RANS; wind-tunnel experiments; insert design; Strömningsmekanik; aerodynamik; turbulens; RANS; vindtunnel experiment; inlaga designen;

   Abstract : A reinforced fiber-glass model of a NACA 4412 wing profile is designed and set-up in the Minimum Turbulence Level (MTL) wind tunnel facility at KTH. The model has 65 pressure taps orifices, and the set-up includes two mounting panels designed to allow for particle image velocimetry (PIV) and hot wire anemometry (HWA) measurements of the boundary layer (to be performed in a future campaign). READ MORE