TY - JOUR
TI - Mixed convection of functionalized DWCNT-water nanofluid in baffled lid-driven cavities
AU - Esfe Mohammad Hemmat
AU - Arani Ali Akbar Abbasian
AU - Yan Wei-Mon
AU - Aghaie Alireza
AU - Afrand Masoud
AU - Sina Nima
JN - Thermal Science
PY - 2018
VL - 22
IS - 6
SP - 2503
EP - 2514
PT - Article
AB - The present study aims to evaluate the mixed convection flow and heat  transfer of functionalized DWCNT/Water nanofluids with variable properties  in a cavity having hot baffles. The investigation is performed at different  nanoparticles volume fraction including 0, 0.0002, 0.001, 0.002, and 0.004,  Richardson numbers ranging from 0.01 to 100, inclination angles ranging from  0 to 60° and at constant Grashof number of 104. The results presented as  streamlines and isotherms plot and Nusselt number diagrams. According to the  finding with increasing nanoparticles volume fraction and distance between  the left hot baffles of nanoparticles average Nusselt number enhances for  all considered Richardson numbers and cavity inclination angles. Also with  increasing Richardson number, the rate of changes of average Nusselt number  increase with increasing distance between the left hot baffles. For example,  at Richardson number of 0.01, by increasing L1 from 0.4 to 0.6, the average  Nusselt number increases 7%; while for similar situation at Richardson  number of 0.1, 1.0 and 10, the average Nusselt number increases respectively  17%, 24% and 26%. At all Richardson numbers, the maximum value of average  Nusselt number is achieved for a minimum length of left baffles.