Essays about: "inner radius"

Showing result 1 - 5 of 15 essays containing the words inner radius.

  1. 1. Finite-Element Analysis of Cryogenic Pressure Vessels Under Blast Loading

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Casper Liavåg; [2023]
    Keywords : Cryogenic Pressure Vessel; Blast; Blast Loading; Pressure Vessel; Launch Infrastructure;

    Abstract : The behavior of cryogenic double-walled pressure vessels, such as thoseused in space launch vehicle infrastructure, under blast loading is a somewhatunderstudied topic. This is of interest due its implications on, among otherthings, launch site design and safety in the event of a launch vehicle failure. READ MORE

  3. 2. Measuring the [C II]-to-H I connection in high-redshift absorption-selected galaxies

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation

    Author : Gaurav Senthil Kumar; [2022]
    Keywords : QSO; Quasar; Black Hole; AGN; Active Galactic Nuclei; DLA; Damped Lyman Alpha; C II; [C II]; H I; Sightline; HST; X-shooter; Spectroscopy; Echelle Spectroscope; Hyperfine transition; Hyperfine; Physics and Astronomy;

    Abstract : HI neutral gas is the basic building block of galaxies. It dictates the star formation rate and hence the metal enrichment rates within high redshift galaxies. HI neutral gas cannot be directly observed beyond z ≈ 0. READ MORE

  4. 3. Cooling simulation of a BEV electrical machine rotor

    University essay from KTH/Fordonsdynamik

    Author : Lisa Sparv; [2021]
    Keywords : Electrical machine; Rotor cooling; Permanent magnet; Simulation; STAR-CCM ; Elmaskin; Rotorkylning; Permanentmagnet; Simulering; STAR-CCM ;

    Abstract : The thesis work described in this report is about simulation of the cooling of an electrical machine rotor. Limitations and simplifications were made on the CAD model of the rotor with the purpose of reducing the simulation time, for it to then be used for CFD-simulations using STAR-CCM+. READ MORE

  5. 4. Stars Eating Planets

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation

    Author : John Wimarsson; [2020]
    Keywords : Earth and planetary astrophysics; planetary dynamics; planet-planet scattering; planet consumption; Physics and Astronomy;

    Abstract : In a phase of instability during the dynamical evolution of some multiple exoplanetary systems, exchange of angular momentum and/or energy through gravitational interactions between planets will lead to alterations of their orbital properties. In some cases, planetary orbits end up crossing, which leads to close encounters between two planets. READ MORE

  6. 5. Tesla Valve for Hydrogen Decompression : Fluid Dynamic Analysis

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

    Author : Elias Bäckman; Mathilda Willén; [2019]
    Keywords : Decompression; Hydrogen gas; Tesla valve; no-moving parts; CFD; valve-to-valve; 压降；氢气；特斯拉阀；无可动阀芯；计算流体动力学；级间距; Decompression; Hydrogen gas; Tesla valve; No-moving parts; CFD; valve-to-valve;

    Abstract : Människans påverkan på växthuseffekten har under de senaste åren varit en mycket aktuell fråga. Det är många olika faktorer som bidrar till ett negativt avtryck på miljön, där ett stort bidrag kommer från sektorn bilindustri. Majoriteten av dagens bilar drivs på fossila bränslen som genererar skadande utsläpp på miljön. READ MORE