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Regression models for the leakage flow in screw extruders

  • Daniel Herzog (Creator)
  • Christian Marschik (Contributor)
  • Wolfgang Roland (Contributor)

Dataset

Description

Excel spreadsheet containing analytical regression models for the leakage flow across screw flights
(model equations given as text and coefficients as numeric values).

The following functional relationships are available:

- Dimensionless leakage flow rate vs. dimensionless cross-channel pressure gradient
- Dimensionless dissipation rate vs. dimensionless leakage flow rate

Modifications compared to the previous version:
- rearranged expression for the dissipation model to avoid nested fractions
- additional stabilisation of the dissipation model by truncating the denominators below working precision (2-16)
Date made available24 Oct 2025
PublisherZenodo

UN SDGs

This dataset contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 9 - Industry, Innovation, and Infrastructure
    SDG 9 Industry, Innovation, and Infrastructure
  2. SDG 12 - Responsible Consumption and Production
    SDG 12 Responsible Consumption and Production

Fields of science

  • 205012 Polymer processing
  • 203037 Computational engineering

JKU Focus areas

  • Digital Transformation
  • Sustainable Development: Responsible Technologies and Management

Contact person

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