Essays about: "heave"

Showing result 1 - 5 of 25 essays containing the word heave.

1. 1. Computational Analysis of Spray Deflector Designs

   University essay from KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

   Author : Osman Gyokhan Ali; [2023]
   Keywords : Planing Hulls; Spray Deflector; Hull Modification; Computational fluid dynamics CFD ; resistance; trim angle; heave; CD-adapco Star CCM ; Numerical Ventilation; Phase Replacement; Modified HRIC Scheme; Volume Fraction Source Term; Reynolds averaged Navier-Stokes RANS ; Volume of Fluid VOF ; SST K-Omega Turbulence Modelling; Höghastighetshantverk; modelldesign; spraydeflektor;

   Abstract : Planing hull is a common hull design concept which decreases the resistance while speed is increasing for a specific speed range. It is also suitable for hull modifications to achieve higher efficiency. Spray deflector is a promising hull modification which offers extra resistance decreasing and less vertical acceleration for planing hulls. READ MORE

3. 2. Jet Grout Bottom Plug in Deep Excavations : Numerical Analysis of a Tunnel Project

   University essay from KTH/Jord- och bergmekanik

   Author : Ida Schjelderup; [2022]
   Keywords : Jet grouting; jet grout bottom plug; cut-and-cover tunnel; tunnel design;

   Abstract : This master thesis has investigated the performance of a deep excavation with a jet grout bottom plug used to prevent bottom heave and hydraulic uplift failure. The concept of a jet grout plug as a structural and sealing component in a specific case was studied, namely one of the tunnel sections of The West Link tunnel project in Gothenburg. READ MORE

4. 3. Numerical modelling of lime-cementcolumns in the passive zone of excavations in soft clays

   University essay from KTH/Jord- och bergmekanik

   Author : Anaëlle Gilot; [2021]
   Keywords : Deep mixing; lime-cement columns; excavations; clay; finite element method; advanced constitutive model; Mélange profond; colonnes de chaux-ciment; excavations; argile; méthode des éléments finis; modèle constitutif avancé; Jordförstärkning med kalk-cement pelare; utgrävningar; lera; finita elementmetoden; avancerad konstitutiv modell;

   Abstract : Excavations in soft clays come with a number of specific challenges. The use of lime-cement columns in the passive zone of such works represents a promising solution to some of these problems, such as basal heave stability or excessive deformations. READ MORE

5. 4. Device Resonance Response in a Wave Energy Converter : Investigation of Surge Resonance in a Heaving Point Absorber

   University essay from Uppsala universitet/Elektricitetslära

   Author : Lykke Östbom; [2021]
   Keywords : ;

   Abstract : Wave power possesses vast potential to become a considerable energy contributor. The main challenge for wave power to become competitive on the energy market is to minimize the delivered energy cost simultaneously as designing a wave energy converter (WEC) strong enough to survive extreme sea conditions. READ MORE

6. 5. Modelling the Dynamics and Forcesof Wave Energy Converters using WEC-Sim

   University essay from Uppsala universitet/Institutionen för fysik och astronomi; Uppsala universitet/Institutionen för elektroteknik

   Author : David Johansson; [2020]
   Keywords : WEC-Sim; Uppsala Point Absorber; peak line force; model; irregular waves;

   Abstract : The waves traveling on the surface of the world’s oceans carry atremendous amount of energy. The ability to convert this energy forhuman use has the potential to help solves the worlds energy problem. READ MORE