Essays about: "ballistic"

Showing result 1 - 5 of 33 essays containing the word ballistic.

1. 1. Modeling of the trajectory of ice thrown from a wind turbine

   University essay from Lunds universitet/Institutionen för energivetenskaper

   Author : Elena Rocchi; [2023]
   Keywords : Ice thrown - Ice fall - RANS - LES - CFD - simulations - ballistic model; Technology and Engineering;

   Abstract : There is a growing number of wind turbines installed in cold temperature zones as a result of the restricted space for new construction. Due to ice deposition on the turbine blades, the increasing installation of wind turbines in freezing temperature areas presents many challenges: ice accumulation increases weight, unbalances the rotor, diminishes aerodynamic efficiency, and creates safety issues. READ MORE

3. 2. Design and Modeling of InxGa(1−x)As/InP based Nanosheet Field Effect Transistors for High Frequency Applications

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : Hanyu Liu; Xi Chen; [2023]
   Keywords : nanosheet NS ; gate-all-around GAA ; channel release; parasitic channel; MATLAB; COMSOL; technology node; Technology and Engineering;

   Abstract : The advancement of CMOS technology has been fueled by the need to satisfy Moore’s law by shrinking transistors to progressively smaller sizes and increasing the transistor density per unit area [1]. The dimension of the state-of-the-art MOSFET is now down to a few nanometers. READ MORE

4. 3. Analysis on copper, lead and tin removal in steel scrap sorting : Technologies involved, environmental considerations and economic aspects

   University essay from KTH/Materialvetenskap

   Author : Giada Cavaliere; [2023]
   Keywords : Copper; Tin; Lead; Steel Scrap Sorting; Ballistic Separation; Dilution; Revenue Modelling; CO2 emissions Modelling; Tenn; Bly; Sortering av stålskrot; Ballistisk separation; Utspädning; lntäktsmodellering; CO2-utsläppsmodellering;

   Abstract : With the urgency of cutting down CO2 emissions to reach climate neutrality by 2050, decarbonization of the steel industry is on the European Commission's agenda. Steelmaking accounts for 10 % of anthropogenic CO2 emissions and it is one of the most challenging sectors to decarbonize. READ MORE

5. 4. Exterior ballistics analysis for rocket propelled KE-penetrator - A conceptual simulation study within fluid mechanics and flight mechanics

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

   Author : Emil Wegberg; [2022]
   Keywords : Exterior ballistics; fluid mechanics; high-speed aerodynamics; CFD; RANS; conceptual design; Ytterballistik; strömningsmekanik; höghastighetsaerodynamik; CFD; RANS; konceptuell design;

   Abstract : This study has investigated the conceptual feasibility of a rocket propelled kinetic energy penetrator (KEP), designed for the handheld recoilless rifle Carl-Gustaf® 84 mm calibre system, from an exterior ballistics perspective. The methodology is based upon evaluating the aerodynamic properties of different conceptual design proposals through CFD-simulations and then performing trajectory analysis to assess their exterior ballistic performance. READ MORE

6. 5. Simulations of experimental crack development in ceramic material with notched specimen

   University essay from KTH/Hållfasthetslära

   Author : Clas Dahlin; [2022]
   Keywords : Solid Mechanics; Fracture mechanics; Ceramics; Dynamics; Ballistics; Hållfasthetslära; Brottmekanik; Keramer; Dynamik; Ballistik;

   Abstract : Low-density armour often uses ceramic materials, as their high compressive strength and relatively low weight make the material ideal for moving in the field. The ballistic protection works by redirecting the plastic flow of the projectile radially, which reduces penetration. READ MORE