...Divyanshu Pratap Singh; Sushil Kumar Rathore; Sumanta Chaudhuri The present analysis deals with the heat transfer characteristics and entropy generation investigation for a non-Newtonian fluid flowing in a wavy passage having three different corrugation profiles, namely, sinusoidal, trapezoidal...

...L. Syam Sundar; Kotturu V.V. Chandra Mouli; Zafar Said; Antonio C. M. Sousa Experiments were conducted to evaluate the thermal entropy generation, frictional entropy generation, and exergy efficiency of reduced graphene oxide (rGO)–Fe 3 O 4 –TiO 2 hybrid nanofluid flow in a circular tube under...

.... The size of the discrete sources, their positions, and their numbers are varied for different Rayleigh numbers. The Prandtl number is fixed at 0.71. Three-dimensional distribution of the temperature iso-surfaces, the heat transfer rate, and entropy generation is evaluated. It is found that heat transfer...

... higher Darcy-Forchheimer number. Thermal field is more via velocity slip parameter, Brownian motion, and thermophoresis diffusion. Concentration field diminishes against chemical reaction parameter and Schmidt number while increases via activation energy parameter. Entropy generation rate...

...Sangram Kumar Samal; Manoj Kumar Moharana Three-dimensional numerical study is presented in this work that deals with thermo-hydrodynamic and entropy generation analysis of water-based nanofluids in recharging microchannel (RMC). Four different water-based nanofluids (Al 2 O 3 , CuO, SiO 2...

... and shaped nanoparticles: Al 2 O 3 , Cu, carbon nanotube (CNT) and graphene) nanofluids as loop fluid. The influences of nanoparticle volume concentration and loop height-to-width ratio on the mass flow rate and total entropy generation rate of SPNCL are investigated. Results disclose that ternary hybrid...

... duct SAH for varying relative rib heights (e/D = 0.02–0.04), relative rib pitches (P/e = 5–15), and rib aspect ratios (e/w = 0.5–4) are evaluated and compared with smooth SAH. The analysis reveals that the entropy generated due to heat transfer is lower for the ribbed triangular duct compared...

...Eric C. Okonkwo; Humphrey Adun; Akinola A. Babatunde; Muhammad Abid; Tahir A.H. Ratlamwala The paper presents an entropy generation minimization study for a solar parabolic trough collector (PTC) operating with SiO 2 –water nanofluid using a genetic algorithm (GA) and artificial neural network (ANN...

...Wei Wang; Jun Wang; Xiao-Pei Yang; Yan-Yan Ding An entropy analysis and design optimization methodology is combined with airfoil shape optimization to demonstrate the impact of entropy generation on aerodynamics designs. In the work herein, the entropy generation rate is presented as an extra...

... effect on local entropy generation due to steady two-dimensional laminar forced convection flow was investigated. This study was focused on the entropy generation characteristics and its dependency on various dimensionless parameters. The effects of the Hartmann number, the Brinkman number, the Deborah...