Local heat transfer due to several configurations of circular air jets impinging on a flat plate with and without semi-confinement

Numerical Simulation of the Heat Transfer from a Heated Solid Wall to an Impinging Swirling Jet

“…In that sense, Sagot et al (2008) study the non-swirling jet impingement heat transfer problem from a flat plate, when its temperature is constant, both numerically and experimentally to obtain an average Nusselt number correlation as a function of 4 non-dimensional parameters. And, what is most important from a numerical point of view, their numerical results, obtained with the commercial code Fluent© and the Shear Stress Transport (SST) k − ω turbulence model for values of Reynolds number (Re)r a n g i n gf r o m 10E3 to 30E3, agree very well with previous experimental results obtained by Fenot et al (2005), Lee et al (2002) and Baughn et al (1991). More experimental results are given by O'Donovan & Murray (2007), who studied the impinging of non-swirling jets, and by Bakirci et al (2007), about the impinging of a swirling jet, against a solid wall.…”

Heat transfer study in a rotor–stator system air-gap with an axial inflow

“…Several authors have also studied the influence of jet impingement, for example, Huang [7], who worked with different jet generators, or Fenot [8], who worked with several simultaneous jets. Angioletti et al [9] have concluded that shear stress and, consequently, heat transfer increase when the boundary layer near the surface is perturbed and the accelerated air is renewed.…”

Influence of spanwise pitch on local heat transfer distribution for in-line arrays of circular jets with spent air flow in two opposite directions

“…But the spanwise variations of heat transfer coefficients were not captured due to the limitations of the apparatus and technique used. Fenot et al [14] and Brevet et al [15] used thin-foil heater technique and IR camera and studied heat transfer characteristics due to one row of confined multiple impinging jets with spent fluid exiting in one direction. Spanwise pitch was optimized on the basis of cooling efficiency estimated per unit area of impingement surface in Brevet et al [15].…”