The heat transfer due to a single axisymmetric impinging jet at a Reynolds number of 20 000 and nozzle-to-plate spacings of 1—8 has been determined using a combined constant heat flux/constant temperature electrocaloric test plate. Both unconfined and semi-confined geometries have been considered for a uniform mean exit velocity. The exit conditions and axial development of the jet have been quantified using hot-wire anemometry. Careful design of the composite heater plate has reduced experimental uncertainties in the local Nusselt number to 5 per cent.
ButtonB. L.JambunathanK.Jet impingement heat transfer: A bibliography 1976–1985. Previews Heat Mass Transfer, 1989, 15(2), 149–178.
3.
JambunathanK.ButtonB. L.Jet impingement heat transfer: A bibliography 1986–1991. Previews Heat Mass Transfer, 1994, 20(5), 385–413.
4.
Ashforth-FrostS.JambunathanK.Effect of nozzle geometry and semi-confinement on the potential core of a turbulent axisymmetric free jet. Int. Commun. Heat Mass Transfer, 1996, 23(2), 155–162.
5.
GoldsteinR. J.FranchettM. E.Heat transfer from a flat plate to an oblique impinging jet. Trans. ASME, J. Heat Transfer, 1988, 110, 84–90.
6.
JambunathanK.Ashforth-FrostS. A.WhitneyC. F.Design of surface heaters for liquid crystal thermography. In IMechE Seminar on Optical Methods and Data Processing in Heat and Fluid Flow, City University, London, 14–15 April 1994, pp. 43–47.
7.
SimonichJ. C.MoffatR. J.New technique for mapping heat transfer coefficient contours. Rev. Sci. Instrum., 1982, 53(5), 678–683.
8.
BaughnJ. W.HoffmanM. A.MakelD. B.Improvements in a new technique for measuring and mapping heat transfer coefficients. Rev. Sci. Instrum., 1986, 57(4), 650–654.
9.
Ashforth-FrostS.JambunathanK.WhitneyC. F.Velocity and turbulence characteristics of a semi-confined orthogonally impinging slot jet. In Tenth Symposium on Turbulent Shear Flow, Pittsburgh, Pennsylvania, 14–16 August 1995, Vol. 1, no. 10, pp. 1–6.
10.
ButtonB. L.TuraR.Design of a blower type low speed thermal wind tunnel. Department of Mechanical Engineering report ME.383, Coventry Lanchester Polytechnic, 1984.
11.
BS 1042: 1983The Measurement of Fluid Flow in Closed Conduit. Section 2.1: Methods Using Pitot-Static Tubes (British Standards Institution, London).
ObotN. T.MajumdarA. S.DouglasW. J. M.Effect of semi-confinement on impingement heat transfer. In Proceedings of Seventh International Heat Transfer Conference, Munich, 6–10 September) 1982, Vol.3, pp. 395–400.
14.
KeziosS. P.Heat transfer in the flow of a cylindrical air jet normal to an infinite plane. PhD thesis, Illinois Institute of Technology, Chicago, Illinois, 1956.
15.
GardonR.AkfiratJ. C.The role of turbulence in determining heat transfer characteristics of impinging jets. Int. J. Heat Mass Transfer, 1965, 8, 1261–1272.
16.
BaughnJ. W.ShimizuS.Heat transfer measurements from a surface with uniform heat flux and an impinging jet. Trans. ASME, J. Heat Transfer, 1989, 111, 1096–1098.
17.
YanX.BaughnJ. W.MesbahM.The effect of Reynolds number on the heat transfer distribution from a flat plate to an impinging jet. Trans. ASME, Heat Transfer Division: Fundamental and Applied Heat Transfer Research for Gas Turbine Engines, 1992, 226, 1–7.
