Essays about: "Elliptical"

Showing result 1 - 5 of 60 essays containing the word Elliptical.

  1. 1. Cable Shape Optimization - Drag Reduction of Cables Used in Marine Applications

    University essay from KTH/Teknisk mekanik

    Author : Simon Garpenquist; [2023]
    Keywords : Wind Tunnel Experiment; Computational Fluid Dynamics; Aerodynamic Forces; Drag Reduction; Shape Optimization; Flow around Cylinders; Yacht Racing;

    Abstract : It is important to understand the aerodynamic properties of tensioned cables (e.g. used in suspension bridges and yacht riggings), both for drag reduction and vibrational suppression purposes. READ MORE

  3. 2. The effect of nozzle geometry on bubble formation : Physical modeling by air in a water tank

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Mhd Osman Bernieh; [2023]
    Keywords : Nozzle geometry; bubble formation; water tank model; bubble flow; Munstycksgeometri; bubbelbildning; vattentankmodell; bubbelflöde;

    Abstract : The bubble flow is used for different application in steel production and refining processes. It plays in indispensable role in the ladle refining process such as for homogenization and inclusion removal. Hence, it is important to understand the effect of the nozzle outlet geometry on the bubble formation. READ MORE

  4. 3. Mechanical and thermal buckling analysis of laminated composite plates

    University essay from Högskolan i Halmstad/Akademin för företagande, innovation och hållbarhet

    Author : Aswin Paremmal; Roopak Kuruthukulangara Varghese; [2023]
    Keywords : composite material; Mechanical Buckling; Buckling analysis;

    Abstract : Composite laminated structures have many application fields such as aerospace, civil, marine, bio medical, transportation, and mechanical engineering because of their convenience in handling, and very good mechanical properties. Buckling behavior of laminated composite plates subjected to plane loads is indeed an important consideration in the primary design of aircraft and launch vehicle components. READ MORE

  5. 4. Copula approach to fitting bivariate time series

    University essay from Lunds universitet/Matematisk statistik

    Author : Jun Wang; [2023]
    Keywords : VaR; Copula; ARMA-GARCH; Extreme Value Theory; GPD; Hill estimator; Mathematics and Statistics;

    Abstract : We apply the GARCH-copula method to estimate Value at Risk (VaR) for European and Stockholm stock indices. First, marginal distributions are estimated by the ARMA-GARCH model with normal, Student-t, and skewed t distributions. READ MORE

  6. 5. Hyper-velocity stars from globular clusters hosting intermediate-mass black holes

    University essay from Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

    Author : Matilda Skantz; [2023]
    Keywords : Hypervelocity stars; run-away stars; stellar binary; intermediate mass black hole; globular cluster; Hills mechanism; Physics and Astronomy;

    Abstract : In 1988 Hills proposed that stars can gain velocities above 500 km s−1 if they are in a stellar binary which gets disrupted by a super massive black hole (SMBH). One of the stars would get trapped in an elliptical orbit around the SMBH while the other gets ejected and obtains a relatively high velocity. READ MORE