Events

What’s Happening This Month

05/06/2025 - 05/08/2025
Course
Online Turbomachinery Core Fundamentals - Compressors Course
05/12/2025 - 05/15/2025
Course
Spring Seminar on Rotordynamics and Bearing Technologies
05/19/2025 - 05/23/2025
Course
Centrifugal Compressors Course - Improving Design for Better Performance & Cost (Online or In-person)
06/16/2025 - 06/20/2025
Tradeshow
ASME TURBO EXPO 2025, Memphis
08/11/2025 - 08/13/2025
Tradeshow
SmallSAT 2025, Salt Lake City
09/16/2025 - 09/18/2025
Tradeshow
Turbomachinery and Pump Symposia 2025, Houston
09/23/2025 - 09/25/2025
Course
Online Turbomachinery Core Fundamentals - Pumps Course
10/13/2025 - 10/17/2025
Course
Centrifugal and Axial Pumps Course - Modern Design, Performance, and Problem Solving (Online or In-person)
10/23/2025 - 10/24/2025
Tradeshow
Hydrogen & Carbon Capture Expo 2025
11/03/2025 - 11/07/2025
Course
Fall Seminar on Rotordynamics and Bearing Technologies
11/04/2025 - 11/06/2025
Course
Turbine Design & Analysis Course

Past Events

01/08/2025 - 01/08/2025
Conference
Cryogenic Hydrogen Research Conference
02/05/2025 - 02/05/2025
Webinar
Extracting Meanline Modeling Parameters for Radial Turbomachinery from CFD
03/12/2025 - 03/13/2025
Tradeshow
ITCM 2025 Aachen
03/24/2025 - 03/26/2025
Tradeshow
ETC16 Hannover
03/25/2025 - 03/27/2025
Tradeshow
2025 Aeromart Montreal

Rothalpy Conservation and Loss Calculations in Turbomachinery for Improved Modeling of Leakage, Thrust, and Component Performance

Presented by Mark Anderson, Chief  Technology Officer at Concepts NREC

Date: Wednesday, August 28, 2024
Time: 11:00 AM - 12:00 PM EDT

2024 Rothalopy webinar image

Conservation of rothalpy in the rotating components of turbomachinery is a fundamental assumption in low-order models, including meanline analysis. Commonly used equations of rothalpy depart from the actual values when a given surface in the rotational domain is not actually rotating, as is the case with an open impeller or in a leakage path.  In this webinar, we will look at the common equations for averaged rothalpy, determine under what circumstances they do not strictly apply, examine different correction methods, and consider a new formulation of leakage path modeling. The new formulation uses these corrected rothalpy terms, which provide a higher level of fidelity to loss generation and pressure distributions calculated from meanline models. This new formulation can provide improved prediction, particularly for axial thrust magnitudes, that have typically been difficult to calculate accurately.

 

Upcoming Events

Webinar
04/23/2025 - 04/23/2025

pbCFD for Leakage Paths in Turbomachinery

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Course
05/06/2025 - 05/08/2025

Online Turbomachinery Core Fundamentals - Compressors Course

View Event »
Course
05/12/2025 - 05/15/2025

Spring Seminar on Rotordynamics and Bearing Technologies

View Event »