VDI
The Association of German Engineers
 
The Association of German Engineers (VDI)
Folgen:  FacebookTwitter

VDI-Standard: VDI 4675 Blatt 2

Commentary
Generic information
Abstract
Abstract

This standard demonstrates the application procedure of balance-based averaging of three-dimensional and instationary flow fields. It shows the conversion of statistical temporal mean values of turbulent flows into balance-based ones and the selection of averaged values in order to clarify which values experts should take into account for the solution for a special problem. Three examples with calculated or measured flow fields are described and evaluated: the exhaust casing of a low-pressure steam turbine, the stage of a radial-flow compressor and an axial-flow turbine. It is shown how mechanical and thermodynamic properties can be described properly for a one-dimensional flow. Comparisons are made with conventional representations and the significance of inhomogeneity characteristics is demonstrated. A demonstration software program for plane averaging is described and provided.

Table of contents: of the standard
Keywords:

Applications, Field, Financial statements, Flow, Inhomogenous, Mathematical calculations, Mean

Date:

2019-04

German Title:
English Title:

Balance-based averaging of inhomogeneous flow fields - Applications

Technical rules: Richtlinie
Issuing body:

VDI-Gesellschaft Energie und Umwelt

Author:

VDI-Fachbereich Energietechnik

Associated VDI Manuals: VDI-Handbuch Energietechnik
Price:

113,50 EUR

Pages:

44

Classification:

17.120.10

available in:

Deutsch, Englisch

Keywords:

Applications, Field, Financial statements, Flow, Inhomogenous, Mathematical calculations, Mean

Fields marked with an asterisk (*) are required.
Please fill all fields marked with an asterisk (*).

VDI 4675 Blatt 2

Given name*:
Surname*:
Company:
Street*:
Postal code, City*:
Email*:
Telephone number:
Upload:

(pdf, doc, docx)
VDI Membership ID:
Commentaries from VDI Members are handled with priority
Your Commentary
ReCaptcha*:
Back to VDI Standard Search