, Volume 7, Issue 2, pp 80–86 | Cite as

On unsteady forced flow against a rotating disk

  • Ioan Pop


The solution of unsteady forced flow against an unsteadily rotating disk is obtained when the outer flow and the angular velocity of the disk are expressed in powers series of √t. The solution is established by expanding the velocity components and the pressure in powers of small time. The extension of the obtained solutions is possible by using Zeytounian's technique. Finally, an analysis is made for the problem of the time-dependent flow due to an infinite rotating disk started accelerated from rest.


Mechanical Engineer Civil Engineer Angular Velocity Velocity Component Power Series 
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La soluzione del flusso forzato contro un disco rotante in regime non permanente è ottenuta quando il flusso esterno e la velocità angolare del disco sono espresse in una serie di potenze √t. La soluzione è formulata esponendo la componente della velocità e la pressione in potenze di tempo piccolo. L'estensione delle soluzioni ottenute è possibile usando la tecnica di Zeytounian. Infine si fa l'analisi del flusso dipendente dal tempo dovuto a un disco rotante infinito accelerato dalla quiete.


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Copyright information

© Tamburini Editore s.p.a 1972

Authors and Affiliations

  • Ioan Pop
    • 1
  1. 1.Faculty of Mathematics and MechanicsUniversity of ClujRomania

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