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Description
  • The article deals with the incorrect contact of screw surfaces which create tooth faces of screw-type machine rotors and is concerned about the turbulent computation of a gas leakage through a 2D model of an undesirable gap caused by the incorrect contact of rotor teeth screw surfaces. The incorrect contact of rotor teeth screw surfaces, considered in this study, is caused by a parallel displacement of the male rotor axis. The problem of the leakage flow through the 2D model of the undesirable gap is solved as a non-stationary turbulent compressible Newtonian fluid flow with ideal gas properties. The mathematical model is described by the non-linear conservative system of the compressible Favre-averaged Navier-Stokes equations. Its numerical solution is performed using the cell-centred finite volume formulation of the explicit two-step TVD MacCormack scheme which is proposed by Causon and is defined on a structured quadrilateral grid.
  • The article deals with the incorrect contact of screw surfaces which create tooth faces of screw-type machine rotors and is concerned about the turbulent computation of a gas leakage through a 2D model of an undesirable gap caused by the incorrect contact of rotor teeth screw surfaces. The incorrect contact of rotor teeth screw surfaces, considered in this study, is caused by a parallel displacement of the male rotor axis. The problem of the leakage flow through the 2D model of the undesirable gap is solved as a non-stationary turbulent compressible Newtonian fluid flow with ideal gas properties. The mathematical model is described by the non-linear conservative system of the compressible Favre-averaged Navier-Stokes equations. Its numerical solution is performed using the cell-centred finite volume formulation of the explicit two-step TVD MacCormack scheme which is proposed by Causon and is defined on a structured quadrilateral grid. (en)
  • V článku je prezentována jednak numerická simulace nekorektního dotyku šroubových ploch, které tvoří plochy zubů rotorů šroubových strojů, a dále pak je popsán turbulentní výpočet proudění ideálního plynu rovinným modelem nežádoucí mezery vzniklé v důsledku nekorektního dotyku šroubových ploch zubů rotorů. Nekorektní dotyk šroubových ploch uvažovaný v této studii je způsoben paralelním posunutím osy hlavního rotoru. Problém proudění rovinným modelem vzniklé nežádoucí mezery je numericky řešen jako nestacionární turbulentní proudění stlačitelné newtonské tekutiny. Matematický model turbulentního proudění je popsán nelineárním konzervativním systémem (cs)
Title
  • Incorrect contact of screw surfaces and numerical solution of the leakage flow through the arisen gap
  • Incorrect contact of screw surfaces and numerical solution of the leakage flow through the arisen gap (en)
  • Nekorektní dotyk šroubových ploch a numerické řešení proudění plynu vzniklou mezerou (cs)
skos:prefLabel
  • Incorrect contact of screw surfaces and numerical solution of the leakage flow through the arisen gap
  • Incorrect contact of screw surfaces and numerical solution of the leakage flow through the arisen gap (en)
  • Nekorektní dotyk šroubových ploch a numerické řešení proudění plynu vzniklou mezerou (cs)
skos:notation
  • RIV/49777513:23520/07:00000209!RIV08-MSM-23520___
http://linked.open.../vavai/riv/strany
  • 163
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GP101/03/P090), Z(MSM4977751303)
http://linked.open...iv/cisloPeriodika
  • 0
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 425927
http://linked.open...ai/riv/idVysledku
  • RIV/49777513:23520/07:00000209
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • screw-type machine; incorrect contact of rotor teeth; gas leakage; compressible flow; turbulence; finite volume method; Favre-averaged Navier-Stokes equations; TVD MacCormack scheme (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [09BB072FC896]
http://linked.open...i/riv/nazevZdroje
  • Engineering Mechanics
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Vimmr, Jan
  • Švígler, Jaromír
http://linked.open...n/vavai/riv/zamer
issn
  • 1802-1484
number of pages
http://localhost/t...ganizacniJednotka
  • 23520
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