Essays about: "Tortuosity"

Showing result 1 - 5 of 7 essays containing the word Tortuosity.

1. 1. Study of Triply Periodic Minimal Surfaces for Heat Transfer Applications

   University essay from Uppsala universitet/Institutionen för materialvetenskap

   Author : María Xuan Celaya Granados; [2023]
   Keywords : ;

   Abstract : In the pursuit of enhancing heat exchanger efficiency, several heat transfer- enhancing strategies are employed. The traditional methods include surface vibrations, microchannels, and integration of vortex generators. Additionally, new solutions are being studied, taking advantage of other relevant improve- ments in the engineering field. READ MORE

3. 2. Broad ion beam cross-sectioning, microscopy, and image analysis of battery electrode morphology

   University essay from Lunds universitet/Industriell Produktion

   Author : Aamer Mohammed Saleem Siddiqui; [2022]
   Keywords : BIB; SEM; Li Plating; Particle cracking; Tortuosity; Image analysis; Technology and Engineering;

   Abstract : Lithium-ion batteries (LiB) are witnessing an increasing demand for electric vehicles. It provides a sustainable energy storage solution that is more efficient and ecofriendly than the fossil fuels. READ MORE

4. 3. X-ray imaging of water flow through soil

   University essay from SLU/Dept. of Soil and Environment

   Author : Lorenzo Garbari; [2020]
   Keywords : infiltration; tomography; soil structure; soil porosity; wetting front; x-ray;

   Abstract : In this study a laboratory experiment on preferential flow was conducted with the aim to quantify the importance of water repellency, soil structure and irrigation rate on water infiltration into soil. To do so, the study was conducted as follows: (a) comparison between the wetting fronts of the irrigations done on the same sample; (b) the tortuosity of the wetting fronts, this was analysed calculating a tortuosity index; (c) the average infiltration velocity and (d) a visual comparison between the 3D images. READ MORE

5. 4. Evaluating the effective oxygen diffusion coefficient in blends of till and green liquor dregs (GLD) used as sealing layer in mine waste covers

   University essay from Luleå tekniska universitet/Geovetenskap och miljöteknik

   Author : Anna Virolainen; [2018]
   Keywords : Oxygen diffusion; green liquor dregs; mine waste; covers; sealing layers;

   Abstract : Dry covers can be used to limit the generation of acid mine drainage from sulphidic mine waste exposed to air and water. For the covers to act efficiently a high degree of saturation should be maintained in the cover, as the diffusion of oxygen is substantially reduced in water compared to that in air. READ MORE

6. 5. Visualization and Quantification of Helical Flow in the Aorta using 4D Flow MRI

   University essay from Linköpings universitet/Institutionen för medicinsk teknik

   Author : Filippa Gustafsson; [2016]
   Keywords : Helical flow; Helicity density; LNH; 4D Flow MRI; geometry of the aorta;

   Abstract : Due to the complex anatomy of the heart, heart valves and aorta, blood flow in the aorta is known to be complex and can exhibit a swirling, or helical, flow pattern. The purpose of this thesis is to implement methods to quantify and visualize both the speed of helicity, referred to as the helicity density, and the direction of helicity, which is measured by the localized normalized helicity. READ MORE