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Showing result 1 - 5 of 55 essays matching the above criteria.

1. 1. Computational Fluid Dynamics and Modeling of a Free Surface Flow

   University essay from KTH/Skolan för teknikvetenskap (SCI)

   Author : Mathieu Marmier; [2023]
   Keywords : CFD; Free Surface Flow; VOF; STAR-CCM ; Multiphase Simulation; Nuclear Engineering; Fluid Mechanics;

   Abstract : This project deals with the CFD modelling of a free surface flow. The aim is to develop and validate a fast and accurate numerical model for stratified two-phase flows. Volume of Fluid (VOF) multiphase model is employed. The purpose is to use the developed numerical model for the design of an element within a compact nuclear reactor. READ MORE

3. 2. Ecological impacts of dam removal in Swedish inland waters : Effects on water chemistry and fish demography

   University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

   Author : Johanna Ekman; [2023]
   Keywords : biology; ecology; dam removal; Sweden; impact; inland waters; ecosystem; water chemistry; fish demography; Perca fluviatilis; European perch; biologi; ekologi; dammutrivning; Sverige; påverkan; inlandsvatten; ekosystem; vattenkemi; fiskdemografi; Perca fluviatilis; abborre;

   Abstract : Dams play an important role in our society, but their negative impacts on aquatic ecosystems have led to a need for conservation efforts to mitigate the negative effects. In some instances, dam removal has been suggested to be the most economically and ecologically beneficial restoration method to improve longitudinal connectivity. READ MORE

4. 3. Motivational Profiles, Coaching Behaviours and Intention to Dropout in Swedish Female Ice Hockey Players : A Latent Profile Analysis

   University essay from

   Author : Thage Pettersson; [2023]
   Keywords : female ice hockey; dropout; coaching behaviours; latent profile analysis; motivational regulations.; dam- och flickishockey; dropout; tränarbeteenden; latent klassanalys; motivationsregleringar;

   Abstract : Background: The purpose of the present study was to identify latent motivational profiles out of motivational regulations among female ice hockey players in Sweden using a person-centered approach, and examine how identified profiles relate to coaching behaviours and dropout. Method: In a cross-sectional design, 140 Swedish female ice hockey players (Mage = 21. READ MORE

5. 4. Adaptable housing during crisis : Sustainable transition from tents to permanent accommodations.

   University essay from Linnéuniversitetet/Institutionen för byggteknik (BY)

   Author : Alex Dam; [2023]
   Keywords : Modular housing; Crisis management; Sustainability; Thermal comfort;

   Abstract : This study delves into the development of a long-term, sustainable housing solution to address the challenges faced during crisis when people are in immediate need of an accommodation. While temporary tents have been traditionally employed as shelters, their inefficiency in colder climates and lack of sustainability necessitate the exploration of alternative options. READ MORE

6. 5. Flow modeling and bank erosion downstream due to spillway discharge : Independent thesis Advanced level (professional degree) 30 ECTS credits

   University essay from Uppsala universitet/Avdelningen för beräkningsvetenskap

   Author : Alexander Lindblad; [2022]
   Keywords : Ansys Fluent; Multiphase Flow; Spillway; CFD; Volume of Fluid; Reynolds-averaged Navier-Stokes;

   Abstract : Dam spillways and downstream areas are used to guide large flows of water during for example heavy rainfall. The large flows give way to turbulent pattern sand velocities that may damage the river banks or the dam structure. Investigation of these water patterns at certain flows are therefore done to examine at risk areas. READ MORE