Essays about: "Plume distribution"

Showing result 1 - 5 of 6 essays containing the words Plume distribution.

  1. 1. A quantitative analysis of plume gas distributions from different detection studies on Europa

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Anujan Ranganathan; [2023]
    Keywords : Europa; Water; Plume distribution; Surface Density; Column Density; Total number of molecules; Europa; Vatten; Plym Distribution; Ytdensitet; Kolumndensitet; Total mängd molekyler;

    Abstract : The search for water has been vital in our solar system as water indicates a potential for life. The search has been extended to satellites orbiting the outer planets. It has already been proven that water exists on Saturn’s moon, Enceladus, where the spacecraft Cassini did a flyby through a water plume. READ MORE

  3. 2. Plume-Spacecraft Interaction Analysis : Study on the Plume Effects of Hall-Effect Thrusters (HET) and High-Efficiency Multistage Plasma Thrusters (HEMPT).

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Josep Sentís Garzón; [2023]
    Keywords : Electric propulsion; Plasma plume; Plasma physics; SPIS; OpenPlume EP; Modelling; Charge-Exchange Collisions; Elektrisk framdrivning; Plasma plym; Plasmafysik; SPIS; OpenPlume EP; Modellering; Laddningsväxlingskollisioner;

    Abstract : Plume-spacecraft interactions play an important role in the performance and integrity of spacecraft during their missions in space. The study encompasses a thruster’s plume simulation and its impact on spacecraft geometries to understand and predict the effects and consequences of the impingement on spacecraft surfaces, such as erosion, contamination, forces, and torques. READ MORE

  4. 3. Analysis of Hall effect thrusters using Hybrid PIC simulations and coupling to EP plume

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : David Villegas Prados; [2020]
    Keywords : Hallis; SPIS; EP; plume; hybrid PIC; Hall effect; HET; inside channel; plume expansion;

    Abstract : In the last 30 years, numerical models have been developed to properly analyze Hall eect thrusters (HET),leading to a bridge between analytical prediction/empirical intuition and experiments. For companies in thespace sector, these codes serve to much more than simply simulating the thruster, but it provides a fast, cheapand reliable tool for processes such as validation and verication procedures, as well as for technical developmentof the thruster. READ MORE

  5. 4. Tunable diode laser absorptionspectroscopy of atomic potassium in a KOH-seeded flat flame

    University essay from Umeå universitet/Institutionen för fysik

    Author : Mirjam Eriksson; [2018]
    Keywords : ;

    Abstract : Potassium (K) is the main ash-forming element released from biomass during thermochemical conversion. A better understanding of K chemistry and monitoring of K species is needed to optimize combustion systems. READ MORE

  6. 5. Low–voltage External Discharge Plasma Thruster and Hollow Cathodes Plasma Plume Diagnostics Utilising Electrostatic Probes and Retarding Potential Analyser

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : George-Cristian Potrivitu; [2016]
    Keywords : space electric propulsion; in-space advanced propulsion technology; Hall effect thruster; hollow cathode; wall-less Hall thruster; external discharge plasma thruster; single Langmuir probe; double Langmuir probe; emissive probe; retarding potential analyzer; plume plasma diagnostics; low-voltage Hall thruster; high-current hollow cathode; plasma parameters; propulsion electrique pour l espace; cathode creuse à fort courant; propulseur à décharge externe de plasma; propulseur à effet Hall à basse tension; techniques de diagnostic du plasma; sonde de Langmuir simple; sonde de Langmuir double; sonde émissive; analyseur à potentiel retardé;

    Abstract : The present thesis is the result of a research period at the Institute of Space and Astronautical Science of the Japanese Aerospace Exploration Agency, ISAS/JAXA within Funaki Laboratory of the Department of Space Flight Systems that followed the path of plume plasma diagnostics for space electric propulsion drives. During the experimental studies two high-current hollow cathodes and an innovative prototype of a low-voltage fully external discharge plasma thruster (XPT) had their plasma plumes diagnosed using electrostatic probes and retarding potential analyser (RPA). READ MORE