Multiphase flows (air degassing and transport, particle-laden flows)

Multiphase flows in hydraulic flow machinery and components can roughly be divided into the flow of gas and particle-laden liquids. In centrifugal pumps, for example, even small amounts of undissolved air in the liquid can cause a significant drop in delivery. While the ingassing and degassing of air is a diffusion-driven and thus slow process, outgassing along with steam cavitation can occur very quickly. The content of dissolved and undissolved air can significantly affect cavitation. This extremely complex process of degassing is not yet sufficiently understood and requires further basic research. Particle loading can lead to significant damage to components due to abrasion. Furthermore, a dispersed phase significantly alters the flow properties of the liquid.

These issues are addressed at HSM in both fundamental and application-oriented projects.

Current Projects

 Kreiselpumpen für die Flüssig-Gasgemischförderung

• Financing: IGF-DLR.
• Partner:
  • OvG Univ. Magdeburg, Lst. f. Strömungsmechanik und Strömungstechnik (Prof. Thévenin).
  • VDMA Fachverband Pumpen und Systeme.
• Contact: Changkyu Park

Closed Projects

 Flüssig-Gasgemischförderung mit Kreiselpumpen

• Financing: AiF-IGF
• Partner:
  • OvG Univ. Magdeburg, Lst. f. Strömungsmechanik und Strömungstechnik (Prof. Thévenin),
  • TU Darmstadt, Fachgebiet Simulation Reaktiver Thermo-Fluid Systeme (Prof. Hasse),
  • VDMA Fachverband Pumpen und Systeme.
• Contact: Romuald Skoda
• Final report

Extraktion in Pump-Mischern bei Anwesenheit von Feststoffen

• Financing: DFG.
• Partner: TU Kaiserslautern, Lst. f. Thermische Verfahrenstechnik (Prof. Bart).
• Contact: Romuald Skoda

Simulationsmethodik für das Design von Einspritzsystemen zur Minimierung der Rohemissionen direkteinspritzender Motoren: LowEmissionDesign.

• Financing: BMWi.
• Partner:
  • TU Darmstadt, Fachgebiet Simulation Reaktiver Thermo-Fluid Systeme (Prof. Hasse),
  • Robert Bosch GmbH,
  • MAN Truck & Bus AG,
  • AVL List / AVL Deutschland GmbH.
• Contact: Romuald Skoda

Mehrphasenströmung in Kreiselpumpen

• Financing: VDMA-Eigenmittel
• Partner:
  • OvG Univ. Magdeburg, Lst. f. Strömungsmechanik und Strömungstechnik (Prof. Thévenin)
  • VDMA Fachverband Pumpen und Systeme.
• Contact: Romuald Skoda