EP 3008457 A1 20160420 - METHOD FOR DETERMINING A TRANSITION POINT AND/OR FOR DETERMINING WALL SHEAR STRESSES ON SURFACES AROUND WHICH SURFACES A FLOW CIRCULATES, AND MEASURING DEVICE
Title (en)
METHOD FOR DETERMINING A TRANSITION POINT AND/OR FOR DETERMINING WALL SHEAR STRESSES ON SURFACES AROUND WHICH SURFACES A FLOW CIRCULATES, AND MEASURING DEVICE
Title (de)
VERFAHREN ZUR BESTIMMUNG EINES TRANSITIONSPUNKTES UND/ODER VON WANDSCHUBSPANNUNGEN AN UMSTRÖMTEN FLÄCHEN UND MESSVORRICHTUNG
Title (fr)
PROCÉDÉ SERVANT À DÉTERMINER UN POINT DE TRANSITION ET/OU DES CONTRAINTES DE CISAILLEMENT À LA PAROI SUR DES SURFACES EXPOSÉES À UN FLUX ET DISPOSITIF DE MESURE
Publication
Application
Priority
- DE 102013211119 A 20130614
- DE 2014000294 W 20140610
Abstract (en)
[origin: WO2014198251A1] The invention relates to a method for determining a transition point and/or for determining wall shear stresses on surfaces (1) around which surfaces a flow circulates by means of thermography, wherein the method comprises the following steps: providing a surface with a heat insulation layer (3) on the surface (1) around which a flow is to circulate, circulating a flow around the surface (1) around which a flow is to circulate, heating the surface (1) around which a flow circulates, contactless measuring of the emitted flow intensity of the surface (1) around which a flow circulates by means of a camera system (7), determining at least one temperature decay coefficient on the surface (1) around which a flow circulates and ascertaining the transition point and/or the wall shear stresses on the surface (1) around which a flow circulates. The invention further relates to a method for determining a transition point and/or for determining wall shear stresses on surfaces around which a flow circulates and/or the qualitative representation of the heat transfer into the flow.
IPC 8 full level
G01N 25/72 (2006.01); G01L 1/00 (2006.01); G01M 9/06 (2006.01)
CPC (source: EP US)
G01J 5/10 (2013.01 - US); G01L 1/241 (2013.01 - EP US); G01M 9/067 (2013.01 - EP US); G01N 25/72 (2013.01 - EP US); G01J 5/485 (2022.01 - US)
Citation (search report)
See references of WO 2014198251A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2014198251 A1 20141218; CN 105492895 A 20160413; EP 3008457 A1 20160420; US 2016258827 A1 20160908
DOCDB simple family (application)
DE 2014000294 W 20140610; CN 201480033882 A 20140610; EP 14757834 A 20140610; US 201414897444 A 20140610