.. _python_API_turbomachinery:

.. currentmodule:: flow360

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Turbomachinery
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Flow360 provides specialized capabilities for turbomachinery simulations, enabling high-fidelity analysis of compressors, turbines, pumps, and other rotating machinery. This section covers advanced techniques for accurately predicting performance, efficiency, and flow phenomena in complex turbomachinery configurations.

.. grid:: 1

    .. grid-item-card:: 🔄 Periodic Simulations
        :link: periodic
        :link-type: doc
        
        Learn how to leverage periodic boundary conditions to efficiently simulate turbomachinery components with rotational symmetry.

Key Turbomachinery Simulation Concepts
==================================

* Rotating reference frames and multiple frame of reference (MFR) techniques
* Periodic boundary conditions for blade passage simulations


Applications
==========

Flow360's turbomachinery simulation capabilities support a wide range of applications:

* Compressor and fan performance prediction
* Turbine efficiency and cooling effectiveness
* Pump and hydromachinery analysis
* Blade loading and structural analysis
* Off-design performance evaluation
* Stage matching and multi-stage analysis
* Novel concept evaluation and optimization
* Secondary air system and sealing effectiveness

Simulation Approaches
=================

Flow360 supports multiple approaches for turbomachinery simulation:

**Single Passage Analysis:**

* Utilize periodic boundaries to model a single blade passage
* Computational efficiency for parametric studies
* Appropriate for steady-state design point analysis

**Full Annulus Simulation:**

* Complete 360-degree model capturing blade count effects
* Required for unequal blade counts and certain instabilities
* Captures large-scale flow structures and asymmetries

**Multiple Frame of Reference:**

* Models relative motion between rotating and stationary components
* Steady-state approximation of rotor-stator interaction
* Efficient for multi-stage preliminary design

**Unsteady Simulation:**

* Time-accurate capture of blade passing effects
* Required for transient phenomena and acoustic analysis
* Predicts blade row interaction and flow instabilities

.. toctree::
   :hidden:

   periodic