Optoelectronic visualization and study of heat transfer from metal wires to water by a compact Schlieren system

Adrian Petris; Dragos Popa; Angela Jianu; Carmen Popa; Valentin I. Vlad

doi:10.1117/12.378715

23 February 2000 Optoelectronic visualization and study of heat transfer from metal wires to water by a compact Schlieren system

Adrian Petris, Dragos Popa, Angela Jianu, Carmen Popa, Valentin I. Vlad

Author Affiliations +

Proceedings Volume 4068, SIOEL '99: Sixth Symposium on Optoelectronics; (2000) https://doi.org/10.1117/12.378715
Event: SIOEL: Sixth Symposium of Optoelectronics, 1999, Bucharest, Romania

Abstract

The aim of this paper is to present some results in the experimental study of heat transfer in fluids by optoelectronic methods. The thermal source was a thin metal wire (TMW) heated by electrical impulses and the propagation medium was the distilled water. We studied the following configurations for the thermal wave propagation and heat transfer. (1) Horizontal TMW far from the water tank walls; (2) Horizontal TMW in the proximity of a vertical metal wall and at a discontinuity introduced by another metal wire; (3) Horizontal TMW with a controlled air bubble flow. The phase perturbations in the transparent medium were visualized by a compact schlieren system with laser diode illumination and were digitally processed in a PC. These results offer a better understanding of some progressively complex thermohydrodynamic phenomena. Some possible applications are in visualization of the route to turbulence in these flows and in designing calibrated phase objects.

Citation Download Citation

Adrian Petris, Dragos Popa, Angela Jianu, Carmen Popa, and Valentin I. Vlad "Optoelectronic visualization and study of heat transfer from metal wires to water by a compact Schlieren system", Proc. SPIE 4068, SIOEL '99: Sixth Symposium on Optoelectronics, (23 February 2000); https://doi.org/10.1117/12.378715

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available