- Tytuł:
- Cold Zone Exploration Using Position of Maximum Nusselt Number for Inclined Air Jet Cooling
- Autorzy:
-
Ingole, S. B.
Sundaram, K. K. - Powiązania:
- https://bibliotekanauki.pl/articles/139691.pdf
- Data publikacji:
- 2017
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
jet impingement
inclined jet
cold zone
air jet cooling
uderzenie strumienia
strumień nachylony
strefa zimna
chłodzenie strumieniem powietrza - Opis:
- Inclined jet air cooling can be effectively used for cooling of electronics or other such applications. The non-confined air jet is impinged and experimentally investigated on the hot target surface to be cooled, which is placed horizontally. Analysis and evaluations are made by introduction of a jet on the leading edge and investigated for downhill side cooling to identify cold spots. The jet Reynolds number in the range of 2000 ≤ Re ≤ 20 000 is examined with a circular jet for inclination (θ) of 15 less than θ less than 75 degree. Also, the consequence of a jet to target distance (H) is explored in the range 0.5 ≤ H/D ≤ 6.8. For 45 degree jet impingement, the maximum Nusselt number is widely spread. Location of maximum Nusselt number is studied, which indicates cold spots identification. At a higher angle ratio, the angle is the dominating parameter compared to the Reynolds Number. Whereas at a lower angle ratio, the inclined jet with a higher Reynolds number is giving the cooling point away from leading edge. It is observed that for a particular angle of incident location of maximum Nusselt Number, measured from leading edge of target, is ahead than that of stagnation point in stated conditions.
- Źródło:
-
Archive of Mechanical Engineering; 2017, LXIV, 4; 533-549
0004-0738 - Pojawia się w:
- Archive of Mechanical Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł