Essays about: "Modellvalidering"

Showing result 1 - 5 of 11 essays containing the word Modellvalidering.

  1. 1. Integration of Open Data in Disaggregate Transport Modelling : A Case Study of Uppsala

    University essay from KTH/Transportplanering

    Author : Iqbal Surahman; Gustav Wegner; [2022]
    Keywords : Agent-based; Disaggregate Transport Model; Open Data; OpenStreetMap; OSM; GTFS; Agentbaserad; Disaggregerad Transportmodell; OpenData; OpenStreetMap; OSM; GTFS;

    Abstract : Transport models are key in predicting travel behaviour and planning transport systems. Transport models can be either aggregated or disaggregated. Disaggregation means that travel behaviour is represented on an individual level, which can be beneficial because it offers a higher detail level and reduces aggregation bias. READ MORE

  2. 2. Two-phase CFD Modelling and Validation : SH204X Master Thesis Project Report

    University essay from KTH/Kärnenergiteknik

    Author : Richard Härlin; [2022]
    Keywords : Master Thesis; Simulation; Validation; DEBORA; CFD; OpenFOAM; Boiling; Two-phase Thermal-Hydraulics; Fluid Mechanics; Nuclear Power Safety; Examensarbete; Simulering; Validering; DEBORA; CFD; OpenFOAM; Kokning; Tvåfas Termohydraulik; Kärnkraftssäkerhet;

    Abstract : This project deals with two-phase CFD model validation, a subject which is currently under active research due to its complexity. The goal is to create a model that predicts data profiles to an acceptable degree for a wide array of flow conditions. The applications within the nuclear field would mainly be for safety analysis, e.g. READ MORE

  3. 3. Improving the validation of a railway vehicle model in the virtual certification process

    University essay from KTH/Spårfordon

    Author : Bente de Leeuw; [2021]
    Keywords : Rail vehicle dynamics; Rail vehicles; Rail profiles; wheel profiles; model validation; Dynamik; järnvägsfordon; järnvägsprofiler; hjulprofiler; modellvalidering.;

    Abstract : Before vehicles can be placed in service it has to complete an authorisation process. At the moment,this process is largely depended on tests. This is, however, an expensive and long process. With new technologies and improved simulations this process can be shortened and the costs can be lowered. READ MORE

  4. 4. Performance Prediction Program for Wind-Assisted Cargo Ships

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Martina Reche Vilanova; [2020]
    Keywords : ;

    Abstract : Due to the accelerating need for decarbonization in the shipping sector, wind-assisted cargo shipsare able to play a key role in achieving the IMO 2050 targets on reducing the total annual GHGemissions from international shipping by at least 50%. The aim of this Master’s Thesis project is todevelop a Performance Prediction Program for wind-assisted cargo ships to contribute knowledgeon the performance of this technology. READ MORE

  5. 5. Neural Network Approaches for Model Predictive Control

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

    Author : Rebecka Winqvist; [2020]
    Keywords : ;

    Abstract : Model Predictive Control (MPC) is an optimization-based paradigm forfeedback control. The MPC relies on a dynamical model to make predictionsfor the future values of the controlled variables of the system. READ MORE