| Titre : | Numerical determination of radiative view factors using ray tracing |
| Auteurs : | T. Walker, Auteur ; S.-C. Xue, Auteur ; G. W. Barton, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Journal of heat transfer (Vol. 132 N° 7, Juillet 2010) |
| Article en page(s) : | pp.[072702-1/6] |
| Note générale : | Physique |
| Langues : | Anglais |
| Index. décimale : | 536 (Chaleur. Thermodynamique) |
| Tags : | Radiative heat transfer View factor Ray tracing Monte Carlo method Polymer optical fiber |
| Résumé : |
A ray-tracing method is presented for numerically determining radiative view factors in complex three-dimensional geometries. This method uses a set of “primitive” shapes to approximate the required geometry together with a Monte Carlo simulation to track the fate of randomized rays leaving each surface. View factors were calculated for an operational fiber drawing furnace using both numerical integration and ray-tracing methods. Calculated view factor profiles were essentially identical above a ray density of 105 per unit area. Run times for the ray-tracing method were considerable longer, although the setup time to describe a new geometry is very short and essentially independent of system complexity.
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| DEWEY : | 536 |
| ISSN : | 0022-1481 |
| En ligne : | http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode=strresults&sort=chron&maxdisp=25&threshold=0&pjournals=JHTRAO&pyears=2010&possible1zone=article&fromyear=2010&fromvolume=132&fromissue=7&OUTLOG=NO&sti=yes&viewabs=JHTRAO&key=D |
