DNS of a hot-wire anemometer in a turbulent channel flow

Herrera Montojo, Javier and Borrell, G. (2014). DNS of a hot-wire anemometer in a turbulent channel flow. In: "ETMM10: 10th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements", 17-19 Sept 2014, Marbella, Spain.

Description

Title: DNS of a hot-wire anemometer in a turbulent channel flow
Author/s:
  • Herrera Montojo, Javier
  • Borrell, G.
Item Type: Presentation at Congress or Conference (Article)
Event Title: ETMM10: 10th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements
Event Dates: 17-19 Sept 2014
Event Location: Marbella, Spain
Title of Book: ETMM10: 10th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements
Date: 18 September 2014
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Motopropulsión y Termofluidodinámica [hasta 2014]
Creative Commons Licenses: None

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Abstract

A body with a shape similar to a hot wire with its sheath, but no prongs, has been placed close to the wall of a turbulent channel at Re_tau = 600. The results of the channel flow, without the wire, agree with previous published ones, despite the modest resolution and domain size. A simplified, two-dimensional version of the wire at the same Reynolds number has been studied to compare the dynamic response of cold and hot wires, where a slightly bigger perturbation is seen in the hot case, but an almost identical dynamic response. The cold wire seems to be able to measure instantaneous velocity with total drag after proper calibration. Being a DNS, the complete description of the flow field around the wire is obtained.

More information

Item ID: 35377
DC Identifier: https://oa.upm.es/35377/
OAI Identifier: oai:oa.upm.es:35377
Deposited by: Javier Herrera Montojo
Deposited on: 27 May 2015 06:32
Last Modified: 27 May 2015 06:32
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