<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>33108</id>
    <completedYear/>
    <publishedYear>2024</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>2024-01-2684</issue>
    <volume/>
    <type>articler</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2024-03-27</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Fast CFD Diesel engine modelling using the 1-Dimentional SprayLet approach</title>
    <abstract language="eng">In the SAE article 2023-24-0083: SprayLet: One-dimensional interactive cross-sectionally averaged spray model, we formulatet a one-dimensional Spray model in interaction with the surrounding gas phase. We could demonstrate, that the model predicted liquid and gaseous penetration length in good aggreement with ECN spray experiments. In this paper we use this model in engine CFD (CONVERGE CFD) and demonstrate a strong reduction in CPU time (50%). We can show a strong decrease in grid dependency, which allows a further reduction of CPU time (90%). We will present engine CFD simulations, comparing detailed spray with SpayLet simulations. This includes pressure traces, heat release, and emissions.</abstract>
    <parentTitle language="eng">SAE Technical Paper</parentTitle>
    <identifier type="issn">0148-7191</identifier>
    <identifier type="url">https://www.sae.org/publications/technical-papers/content/2024-01-2684/</identifier>
    <identifier type="issn">2688-3627</identifier>
    <enrichment key="BTU">an der BTU erstellt / created at BTU</enrichment>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="Fprofil">1 Energiewende und Dekarbonisierung / Energy Transition and Decarbonisation</enrichment>
    <enrichment key="Fprofil">4 Künstliche Intelligenz und Sensorik / Artificial Intelligence and Sensor Technology</enrichment>
    <author>
      <firstName>Vinaykumar Reddy</firstName>
      <lastName>Kurapati</lastName>
    </author>
    <submitter>
      <firstName>Yvonne</firstName>
      <lastName>Teetzen</lastName>
    </submitter>
    <author>
      <firstName>Anders</firstName>
      <lastName>Borg</lastName>
    </author>
    <author>
      <firstName>Lars</firstName>
      <lastName>Seidel</lastName>
    </author>
    <author>
      <firstName>Fabian</firstName>
      <lastName>Mauß</lastName>
    </author>
    <collection role="institutes" number="3207">FG Thermodynamik / Thermische Verfahrenstechnik</collection>
  </doc>
  <doc>
    <id>33109</id>
    <completedYear/>
    <publishedYear>2023</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>articler</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2024-03-27</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">SprayLet: One-Dimensional Interactive Cross-Sectionally Averaged Spray Model</title>
    <abstract language="eng">Spray modeling is among the main aspects of mixture formation and combustion in internal combustion engines. It plays a major role in pollutant formation and energy efficiency although adequate modeling is still under development. Strong grid dependence is observed in the droplet-based stochastic spray model commonly used. As an alternative, an interactive model called 'SprayLet' is being developed for spray simulations based on one-dimensional integrated equations for the gas and liquid phases, resulting from cross-sectionally averaging of multi-dimensional transport equations to improve statistical convergence. The formulated one-dimensional cross-section averaged system is solved independently of the CFD program to provide source terms for mass, momentum and heat transfer between the gas and liquid phases. The transport processes take place in a given spray cone where the nozzle exit is automatically resolved. In the 1D program, the conservation equations are for droplet diameter, droplet temperature, as well as for continuity and momentum of the liquid and the gaseous phase are solved. The source terms between the phases are conservatively embedded into the spray region of the CFD program. In CFD program, the transport equations are solved for gas phase only. The SprayLet model is validated using standard Sandia sprays by comparing penetration lengths and fuel mixture fractions with experimental data.</abstract>
    <parentTitle language="eng">SAE Technical Paper</parentTitle>
    <identifier type="issn">0148-7191</identifier>
    <identifier type="issn">2688-3627</identifier>
    <identifier type="doi">10.4271/2023-24-0083</identifier>
    <enrichment key="BTU">an der BTU erstellt / created at BTU</enrichment>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="Artikelnummer">2023-24-0083</enrichment>
    <enrichment key="Fprofil">1 Energiewende und Dekarbonisierung / Energy Transition and Decarbonisation</enrichment>
    <enrichment key="Fprofil">4 Künstliche Intelligenz und Sensorik / Artificial Intelligence and Sensor Technology</enrichment>
    <author>
      <firstName>Vinaykumar Reddy</firstName>
      <lastName>Kurapati</lastName>
    </author>
    <submitter>
      <firstName>Yvonne</firstName>
      <lastName>Teetzen</lastName>
    </submitter>
    <author>
      <firstName>Anders</firstName>
      <lastName>Borg</lastName>
    </author>
    <author>
      <firstName>Lars</firstName>
      <lastName>Seidel</lastName>
    </author>
    <author>
      <firstName>Fabian</firstName>
      <lastName>Mauß</lastName>
    </author>
    <collection role="institutes" number="3207">FG Thermodynamik / Thermische Verfahrenstechnik</collection>
  </doc>
</export-example>
