Wyniki wyszukiwania dla: BOW THRUSTER, INTERACTION EFFECTS, FLOW FIELD, HYDRODYNAMIC FORCES, SCALE MODEL TESTS

• Experimental study on the selected aspects of bow thruster generated flow field at ship zero-speed conditions

  Publikacja

  • T. Abramowicz-Gerigk
  • M. K. Gerigk

  - OCEAN ENGINEERING - Rok 2020

  The paper presents the results of experimental study on the interaction between the bow thrusters understood as the flow field changes generated by bow tunnel thruster in deep water conditions operated as a single and twin units. The research was limited to zero-speed case for the ship dead in the water. The influence of the hull form and jet spread between the neighbouring thrusters for several combinations of the applied bow...

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• Wiktoria Wojnicz dr hab. inż.

  Osoby

  Zakład Mechaniki Stosowanej i Biomechaniki, Wydział Inżynierii Mechanicznej i Okrętownictwa, Instytut Mechaniki i Konstrukcji Maszyn

  DSc in Mechanics (in the field of Biomechanics)  - Lodz Univeristy of Technology, 2019  PhD in Mechanics (in the field of Biomechanics)  - Lodz Univeristy of Technology, 2009 (with distinction)   Publikacje z listy MNiSW  (2009 - ) Wojnicz W., Wittbrodt E., Analysis of muscles' behaviour. Part I. The computational model of muscle. Acta of Bioengineering and Biomechanics, Vol. 11, No.4, 2009, p. 15-21 Wojnicz W., Wittbrodt E.,...

• Electromagnetic Field Measurements of Bow Thruster Drive with Frequency Converter

  Publikacja

  • B. Palczynska
  • L. Spiralski
  • J. Wyszkowski
  • B. Pałczyńska

  - Rok 2007

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• Marek Czachor prof. dr hab.

  Osoby

  Instytut Fizyki i Informatyki Stosowanej

• Full scale measurements of pressure field induced on the quay wall by bow thrusters – indirect method for seabed velocities monitoring

  Publikacja

  • T. Abramowicz-Gerigk
  • Z. Burciu
  • W. Górski
  • M. Reichel

  - OCEAN ENGINEERING - Rok 2018

  The paper presents the results of full-scale experimental investigation of loads generated on the quay wall by bow thrusters during unberthing of a self-manoeuvring vessel. The presented research allowed for the comparison of the measurements results with generally accepted empirical prediction methods and confirmed the utility of the developed measuring setup for the on-line monitoring of jet induced loads. The conclusions from the...

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• Field Tests on Hydrodynamic and Hybrid Operation of a Bidirectional Thrust Bearing of a Pump-Turbine

  Publikacja

  • M. Wasilczuk
  • M. Wodtke
  • L. Dąbrowski

  - Lubricants - Rok 2017

  In vertical shaft pump turbines operating in pumped storage power plants an important role is played by a thrust bearing. Due to the bidirectional character of operation, thrust bearing tilting pads have to be supported symmetrically, which is known to be unfavourable from the point of view of their performance. Large thrust bearings have to be carefully designed so as to minimise excessive thermo-elastic pad deformations. The...

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• Analysis of unsteady flow forces on the thermowell of steam temperature sensor

  Publikacja

  • S. Kornet
  • D. Sławiński
  • P. Ziółkowski
  • J. Badur

  - Transactions of the Institute of Fluid-Flow Machinery - Rok 2015

  In this paper, 3D numerical analysis of unsteady flow forces acting on the measuring sheath of steam temperature is presented. According to that purpose, the CFD (Computation Fluid Dynamic [1]) approach has been used. The nonstationary of fluid acting on the measuring sheath such as: Strouhal frequency, amplitude of pressure, structure of vortex, peak of pressure, field of pressure, field of velocity etc. are studied analytically...

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• Field tests on hydrodynamic and hybrid operation of a bi-directional thrust bearing of a pump-turbine

  Publikacja

  • L. Dąbrowski
  • M. Wasilczuk
  • M. Wodtke

  - Rok 2017

  In vertical shaft pump turbines operating in pumped storage power plants an important role is played by a thrust bearing. Because of bi-directional character of operation, thrust bearing tilting pads have to be supported symmetrically, which is known to be unfavourable from the point of view of their performance. Large thrust bearings have to be carefully designed so as to minimise excessive thermo-elastic pad deformations. The...

• Application of the fluid–structure interaction technique for the analysis of hydrodynamic lubrication problems.

  Publikacja

  • M. Wasilczuk
  • M. Wodtke
  • A. Olszewski

  - PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY - Rok 2013

  Fluid–structure interaction technique seems to be one of the most promising possibilities for theoretical analysis of lubrication problems. It allows coupling of different physical fields in one computational task, taking into account the interaction between them. In this article, two sets of fluid–structure interaction analyses focusing on the bearing performance evaluation are presented. One analysis was applied to a water-lubricated...

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• Full scale CFD seakeeping simulations for case study ship redesigned from V-shaped bulbous bow to X-bow hull form

  Publikacja

  • K. Niklas
  • H. Pruszko

  - APPLIED OCEAN RESEARCH - Rok 2019

  Increasing propulsion efficiency, safety, comfort and operability are of the great importance, especially for small ships operating on windy sites like the North Sea and the Baltic Sea. Seakeeping performance of ships and offshore structures can be analysed by different methods and the one that is becoming increasingly important is CFD RANS. The recent development of simulation techniques together with rising HPC accessibility...

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