Essays about: "wake models"

Showing result 21 - 25 of 43 essays containing the words wake models.

  1. 21. How efficient is Efficient NDP?

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

    Author : Tian Xu; Dimitris Kalomoiris; [2017]
    Keywords : Simulations; Neighbor Discovery; Efficient NDP; RFC 4861; Dynamic wireless networks.; Technology and Engineering;

    Abstract : In the following years we will experience a transition towards Internet Protocol version 6 (IPv6). The reason is the depletion of IPv4 address space due to the rapid increasing numbers of Internet of Things (IoT) devices connection. READ MORE

  3. 22. Quantifying the Shadow Effect between Offshore Wind Farms with Idealized Mesoscale Models and Observed Wind Data

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : David Werner; [2016]
    Keywords : Shadow effect; offshore wakes; atmospheric stability; analog ensemble; wake forecasting; idealized mesoscale modeling; Weather Research Forecast WRF model; downscaling; North Sea; Princes Amalia; Egmond aan Zee;

    Abstract : Two post processing methods for quantifying the shadow effect of the offshore wind farm Princes Amalia (PA) onto Egmond aan Zee (OWEZ) wind farm are analyzed and benchmarked. The first method is the author’s proposed shadow effect determination method (SEDM), which quantifies an offshore wind farm’s shadow effect based on mesoscale WRF (Weather Research Forecast) idealized modeling and the observed frequency of the analyzed site’s wind conditions. READ MORE

  4. 23. PERFORMANCE ANALYSIS OF DUTY-CYCLE MAC PROTOCOLS IN WIRELESS SENSOR NETWORKS

    University essay from Högskolan i Gävle/Avdelningen för elektronik, matematik och naturvetenskap

    Author : Alfredo Frances Galiana; [2016]
    Keywords : ;

    Abstract : This thesis studies the behavior of the S-MAC protocol in a Wireless Sensor Networks (WSN). The main limitation of the WSN is the lifetime of the battery, because normally it is short and it is not possible to change it all the time. For this reason, the battery consumption and the delay have to be low. READ MORE

  5. 24. Analytical prediction of turbocharger compressor performance: A comparison of loss models with numerical data

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Sergio Sanz Solaesa; [2016]
    Keywords : ;

    Abstract : One-dimensional models predict the performance of centrifugal compressor in short time, being a helpful design tool in the early design stages. They assume uniform flow through the compressor. Conservation of mass, momentum and energy and some empirical loss correlations are applied to estimate the real outputs. READ MORE

  6. 25. The performance of CFD RANS models in predicting wind loads on flat plates: A comparative study with DNS

    University essay from KTH/Energiteknik

    Author : Elin DAHLQVIST; [2016]
    Keywords : ;

    Abstract : Att kunna förutspå vindlaster är viktigt för att kunna optimera kostnaden för takmonterade solsystem, och en både lovande och allt mer populär metod för att gra detta är att använda sig av CFD. Denna studie undersökte hur olika RANS modeller presterar i att förutspå ett normalt vinklat flöde mot en platt platta för fyra olika förhållanden mellan plattans kortsida och långsida. READ MORE