Search results for: CFD URANS methods

• TIME-DOMAIN NUMERICAL EVALUATION OF SHIP RESISTANCE AND MOTION IN REGULAR WAVES BY USING THE CFD URANS METHOD

  Publication

  • M. Sadeghi
  • H. Zeraatgar
  • M. H. Ghaemi
  • M. Barjasteh

  - Year 2023

  Taking into account the International Maritime Organisation’s (IMO) strategy to radically reduce the GHG emitted by the shipping industry towards zero emission operation, today's assessment of ship behaviour in waves, its seakeeping characteristics and resistance and their interrelation with fuel consumption and emissions are one of the most attended research subject. There are three methods to conduct this analysis, which are...

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• TIME-DOMAIN NUMERICAL EVALUATION OF SHIP RESISTANCE AND MOTION IN REGULAR WAVES BY USING THE CFD URANS METHOD

  Publication

  • M. Sadeghi
  • H. Zeraatgar
  • M. H. Ghaemi
  • M. Barjasteh

  - Year 2023

  Taking into account the International Maritime Organization's (IMO) strategy to radically reduce the...

  Full text available to download

• Estimation of the steam condensation flow via CFD methods

  Publication

  • W. Zakrzewski
  • M. Karcz
  • S. Kornet

  - Transactions of the Institute of Fluid-Flow Machinery - Year 2012

  The results of numerical simulations to predict the performance of different steam models have been presented. All of the considered models of steam condensation have been validated on the base of benchmark experiment employing expansion in nozzle and next on the low pressure part of the steam turbine stage. For numerical analysis three models have been finally used – the ideal steam model without condensation, an equilibrium steam...

• Karol Niklas dr hab. inż.

  People

  Institute of Ocean Engineering and Ship Technology

  Karol NIKLAS is a university professor at Gdansk University of Technology (Faculty of Mechanical Engineering and Ship Technology, Institute of Naval Architecture). He defended his master's thesis on Naval Architecture, specialty Design of vessels and yachts in 2007. In 2008, he completed postgraduate studies in the specialty 'Novel Simulation Methods in Engineering' at the Faculty of Applied Physics and Mathematics. In 2014 awarded...

• The CFD modeling in bioreactor tracer studies

  Publication

  • P. Zima

  - TASK Quarterly - Year 2007

  W artykule zaprezentowano badania traserowe w bioreaktorach z osadem czynnym. Przedstawiono efekty działania procesu dyspersji na podstawie obliczonych podłużnych profili koncentracji znacznika w komorach osadu czynnego zlokalizowanych na Oczyszczalni Ścieków "Wschód" w Gdańsku. W ramach badań wykonano symulację przepływu substancji nieaktywnej (bazując na pomierzonych profilach stężenia znacznika) stosując jednowymiarowe równanie...

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• Badanie dynamiki platform pływających morskich turbin wiatrowych z zastosowaniem metod numerycznej mechaniki płynów

  Publication

  • E. Ciba

  - Year 2024

  Praca dotyczy badania ruchu platform pływających pod morskie turbiny wiatrowe. Przedstawiono w niej główne metody obliczeń i przedyskutowano ich zastosowanie. Na przykładzie koncepcji konstrukcji 3-kolumnowej platformy typu Spar przedstawiono metodykę wykonywania obliczeń z zastosowaniem programu AQWA opartego na metodzie dyfrakcyjnej, rozszerzonego o współczynniki wynikające z lepkości wyznaczone za pomocą obliczeń RANSE-CFD....

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• CFD ship squat determination method validation by GPS-RTK measurements

  Publication

  • L. Gucma
  • J. Jachowski
  • M. Schoeneich

  - Year 2007

  Artykuł zawiera porównanie numerycznych obliczeń osiadania statku z wynikami badań rzeczywistych z wykorzystaniem metody GPS-RTK.

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• CFD Letters

  Journals

  ISSN: 2180-1363

• Analytical Methods

  Journals

  ISSN: 1759-9660 , eISSN: 1759-9679

• Modelling hydraulic and capillary-driven two-phase fluid flow in unsaturated concretes at the meso-scale with a unique coupled DEM-CFD technique

  Publication

  • M. Krzaczek
  • M. Nitka
  • J. Tejchman

  - INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS - Year 2023

  The goal of the research was to demonstrate the impact of thin porous interfacial transition zones (ITZs) between aggregates and cement matrix on fluid flow in unsaturated concrete caused by hydraulic/capillary pressure. To demonstrate this impact, a novel coupled approach to simulate the two-phase (water and moist air) flow of hydraulically and capillary-driven fluid in unsaturated concrete was developed. By merging the discrete...

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