Short answer

Leverage validated open-source CFD tools like SU2 for the design and analysis of ORC systems, particularly when dealing with non-ideal fluid behaviors and supersonic flow regimes.

Field: Modelling
Source: Energy Procedia (2017)
Method: Experimental validation of a computational model
Evidence: Strong effect

The open-source SU2 Computational Fluid Dynamics (CFD) suite has been experimentally validated for simulating complex non-ideal compressible fluid dynamics (NICFD) relevant to Organic Rankine Cycle (ORC) applications. This modelling research insight is drawn from a 2017 study published in Energy Procedia. Using Experimental validation of a computational model, researchers explored how this design variable affects real-world outcomes. The key design takeaway: Leverage validated open-source CFD tools like SU2 for the design and analysis of ORC systems, particularly when dealing with non-ideal fluid behaviors and supersonic flow regimes.

Study

ModellingHigh ImpactStrong effect

SU2 CFD Suite Accurately Simulates Non-Ideal Compressible Flows in ORC Applications

Energy Procedia · 2017

Key Findings

01SU2 CFD suite showed good agreement with experimental data for supersonic flows of MDM fluid under non-ideal conditions.
02The CFD simulations accurately captured phenomena such as acceleration to supersonic speeds, oblique shock waves, and shock-wall interactions.
03The software's ability to handle complex thermodynamic models for organic fluids was demonstrated.

Application

Design takeaway

Leverage validated open-source CFD tools like SU2 for the design and analysis of ORC systems, particularly when dealing with non-ideal fluid behaviors and supersonic flow regimes.

How to apply

When designing turbine stators, airfoils, or blade trailing edges for ORC systems, use SU2 CFD to simulate the flow and compare results with experimental data or established theoretical models.

Project actions

01When selecting simulation software for your design project, consider open-source options that have been experimentally validated.
02Ensure your chosen simulation software can handle the specific fluid properties and flow conditions relevant to your design.

Method & Evidence

AimTo experimentally assess the accuracy of the SU2 CFD suite for simulating supersonic flows of organic fluids under non-ideal conditions relevant to ORC applications.

MethodExperimental validation of a computational model

ProcedureThe SU2 CFD suite was used to simulate supersonic flows of the siloxane fluid MDM through three different geometries: a converging-diverging nozzle, a diamond-shaped airfoil, and a backward-facing step. These numerical results were then compared against experimental data obtained from a dedicated test rig (TROVA).

ContextOrganic Rankine Cycle (ORC) applications, fluid dynamics simulation

Variables

IVGeometry of the flow passage (nozzle, airfoil, backward-facing step)

DVFlow characteristics (Mach number, pressure distribution, shock wave formation and location)

CVFluid properties (MDM siloxane), inlet conditions (pressure, temperature), thermodynamic models used in CFD

Strengths & Limitations

Strengths

+Direct comparison of CFD results with experimental data.
+Use of a well-established open-source CFD suite.
+Investigation of multiple relevant geometries.

Limitations

The experimental setup might not perfectly replicate all real-world ORC operating conditions, and the simulations are based on specific assumptions about fluid properties.

Reliability & validity

The study's reliability is supported by the direct comparison of simulation results with experimental data. Validity is enhanced by testing across different geometries and flow regimes relevant to ORC applications.

Think critically

To what extent can the findings from this study be generalized to other organic fluids and different ORC system configurations?

Design Principles

"Computational models used in design should be rigorously validated against experimental data to ensure accuracy and reliability."

Accurate simulation of fluid dynamics is crucial for optimizing the design of energy conversion systems like ORCs. Validating open-source CFD tools like SU2 reduces reliance on proprietary software and promotes wider accessibility for research and development in this field.

What This Means for Your Design

This study shows that a free computer program called SU2 can accurately predict how organic fluids behave when they move very fast, which is important for designing machines that turn heat into electricity.

How to use in your project

1.Reference this study when justifying the use of CFD software for simulating fluid dynamics in your design project, highlighting its validated accuracy for similar applications.

Add to My Project

Quick Cite

Paragraph starter

The experimental validation of the SU2 CFD suite for simulating non-ideal compressible fluid dynamics in Organic Rankine Cycle (ORC) applications, as demonstrated by Gori et al. (2017), provides strong evidence for its reliability in predicting supersonic flows and shock phenomena. This supports the use of such validated computational tools in design projects to optimize component performance and reduce development costs.

Source

Energy Procedia

Experimental assessment of the open-source SU2 CFD suite for ORC applications

journal · 2017

View source

Questions About This Research

What does the research say about su2 cfd suite accurately simulates non-ideal compressible flows in orc applications?: Leverage validated open-source CFD tools like SU2 for the design and analysis of ORC systems, particularly when dealing with non-ideal fluid behaviors and supersonic flow regimes. Evidence: Energy Procedia (2017).
Why does "SU2 CFD Suite Accurately Simulates Non-Ideal Compressible Flows in ORC Applications" matter for design?: Accurate simulation of fluid dynamics is crucial for optimizing the design of energy conversion systems like ORCs. Validating open-source CFD tools like SU2 reduces reliance on proprietary software and promotes wider accessibility for research and development in this field.
How can designers apply this research?: Leverage validated open-source CFD tools like SU2 for the design and analysis of ORC systems, particularly when dealing with non-ideal fluid behaviors and supersonic flow regimes.
What were the main findings?: SU2 CFD suite showed good agreement with experimental data for supersonic flows of MDM fluid under non-ideal conditions.. The CFD simulations accurately captured phenomena such as acceleration to supersonic speeds, oblique shock waves, and shock-wall interactions.. The software's ability to handle complex thermodynamic models for organic fluids was demonstrated.
What research method was used?: Experimental validation of a computational model.
How strong is the evidence?: Evidence strength is rated Strong effect, based on a 2017 journal from Energy Procedia.
What should I do differently in my next project?: When designing turbine stators, airfoils, or blade trailing edges for ORC systems, use SU2 CFD to simulate the flow and compare results with experimental data or established theoretical models.
What are the limitations?: The study focused on a specific organic fluid (MDM) and a limited range of geometries and flow conditions. Further validation across a broader spectrum of fluids and operational parameters may be necessary.