Numerical investigation of heat transfer and pressure drop in nuclear fuel rod with three-dimensional surface roughness

A designed wall roughness approach to improve turbulent heat transfer to supercritical CO2 flowing in horizontal tubes

“…Recent experimental measurements by Tikadar et al [39] are used to validate the SST k − ω model on reproducing the flow and heat transfer for flow through rough pipes. In their tests, the heat transfer and pressure drop in the Inconel-Nickel fuel rod for pressurized water reactor (PWR) have been measured, where the Inconel fuel rod was modified with three-dimensional (Diamond-shaped blocks) surface roughness; more details can be found in [39]. Fig.…”

Heat Transfer Enhancement by Shot Peening of Stainless Steel

“…Ventola et al (2014) proposed the heat transfer model, taking into account the size of the surface roughness and turbulent fluid flow [24]. Tikadar et al (2018) looked at heat transfer characteristics in a roughed heater rod. They found that there was an abrupt increase in the heat transfer coefficient at the transition region from the smooth to the surface roughness area [25].…”

“…Tikadar et al (2018) looked at heat transfer characteristics in a roughed heater rod. They found that there was an abrupt increase in the heat transfer coefficient at the transition region from the smooth to the surface roughness area [25].…”

“…The main interest of this research is to determine the efficiency of heat transfer of a shot peened surface in stainless steel tube. Most of the literature mentioned above [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] used the finite volume method (FVM) to determine the heat transfer characteristics of textured surfaces. In addition, many studies utilized the finite element method (FEM) to understand the effects of shot peening process parameters [39][40][41][42][43][44][45][46][47].…”