This study concerns the flow and heat transfer characteristics of a turbulent submerged circular air jet impinging on a horizontal flat surface when free stream turbulence exceeds 20 percent. The turbulent fluctuations of the free stream velocity are the primary aerodynamics influencing heat transfer. Two regions with distinct flow characteristics are observed: the stagnation region, and the wall-jet region. According to the linear form of the energy equation, the surface heat flux may be decomposed into laminar and turbulent components. An inverse methodology can determine the turbulent component of the heat transfer coefficient in the stagnation region and in the wall-jet region as a function of the root mean square value of the fluctuating component of velocity in the bulk flow direction.

1.
Bollen, W., 1949, “Effect of Turbulence on Heat Transfer Coefficient Distribution Around a Cylinder Normal to Air Flow,” Master’s thesis, Oregon State College, Corvallis, OR.
2.
Zapp, G., Jr., 1950, “The Effect of Turbulence on Local Heat Transfer Coefficient Around a Cylinder Normal to Air Flow,” Master’s thesis, Oregon State College, Corvallis, OR.
3.
Kestin
,
J.
,
Maeder
,
P. F.
, and
Sogin
,
H. H.
,
1961
, “
The Influence of Turbulence on the Transfer of Heat to Cylinders Near the Stagnation Point
,”
Z. Agnew. Math. Phys.
,
12
, pp.
115
132
.
4.
Martin
,
H.
,
1977
, “
Heat and Mass Transfer Between Impinging Gas Jets and Solid Surfaces
,”
Adv. Heat Transfer
,
13
, pp.
1
60
.
5.
Lowery
,
G. W.
, and
Vachon
,
P. I.
,
1975
, “
The Effect of Turbulence on Heat Transfer from Heated Cylinders
,”
Int. J. Heat Mass Transf.
,
18
, pp.
1229
1242
.
6.
Simonich
,
J. C.
, and
Bradshaw
,
P.
,
1978
, “
Effect of Free-Stream Turbulence on Heat Transfer Through a Turbulent Boundary Layer
,”
ASME J. Heat Transfer
,
100
, p.
673
673
.
7.
Pedisius
,
A. A.
,
Kazimekas
,
P. V. A.
, and
Slanciauskas
,
A. A.
,
1979
, “
Heat Transfer From a Plate to a High-Turbulence Air Flow
,”
Heat Transfer-Sov. Res.
,
11
(
5
), p.
125
125
.
8.
Blair
,
M. F.
,
1983
, “
Influence of Free-Stream Turbulence on Turbulent Boundary Layer Heat Transfer and Mean Profile Development: Part II—Analysis of Results
,”
ASME J. Heat Transfer
,
105
, p.
41
41
.
9.
Hancock
,
P. E.
, and
Bradshaw
,
P.
,
1983
, “
The Effect of Free-Stream Turbulence on Turbulent Boundary Layers
,”
ASME J. Fluids Eng.
,
105
, p.
284
284
.
10.
Maciejewski
,
P. K.
, and
Moffat
,
R. J.
,
1992
, “
Heat Transfer With Very High Free-Stream Turbulence: Part 1—Experimental Data
,”
ASME J. Heat Transfer
,
114
(
4
), pp.
827
833
.
11.
Maciejewski
,
P. K.
, and
Moffat
,
R. J.
,
1992
, “
Heat Transfer with Very High Free-Stream Turbulence: Part II—Analysis of Results
,”
ASME J. Heat Transfer
,
114
(
4
), pp.
834
839
.
12.
Al-Salam
,
H.
,
Haji-Sheikh
,
A.
, and
You
,
S. M.
,
1996
, “
Effect of Turbulence on Heat Transfer in Stagnation Flow
,”
J. Thermophys. Heat Transfer
,
10
(
2
), pp.
290
296
.
13.
Hoogendoorn
,
C. J.
,
1977
, “
The Effect of Turbulence on Heat Transfer at a Stagnation Point
,”
Int. J. Heat Mass Transf.
,
20
, pp.
1333
1338
.
14.
Gardon
,
P.
, and
Akfirat
,
J. C.
,
1965
, “
The Role of Turbulence in Determining the Heat-Transfer Characteristics of Impinging Jets
,”
Int. J. Heat Mass Transf.
,
8
, pp.
1261
1272
.
15.
Beck, J. V., Kole, K. D., Haji-Sheikh, A., and Litkouhi, B., 1992, Heat Conduction Using Green’s Functions, Hemisphere Publishing Corporation, Washington, D.C.
16.
Beck, J. V., Blackwell, B., and St. Clair Jr., C. R., 1985, Inverse Heat Conduction, Wiley-Interscience Publication, New York.
17.
Liu
,
X.
,
Lienhard
,
V. J. H.
, and
Lombara
,
J.
,
1991
, “
Convective Heat Transfer by Impingement of Circular Liquid Jets
,”
ASME J. Heat Transfer
,
113
, pp.
571
582
.
18.
Brdlik
,
P. M.
, and
Savin
,
V. K.
,
1965
, “
Heat Transfer Between an Axi-Symmetric Jet and a Plate Normal to the Flow
,”
J. Eng. Phys.
,
8
, pp.
91
98
.
19.
Dup. Donaldson
,
C.
,
Snedekker
,
R. S.
, and
Margolis
,
D. P.
,
1971
, “
A Study of Free Jet Impingement: Part 2—Free Jet Turbulent Structure and Impingement Heat Transfer
,”
J. Fluid Mech.
,
45
, pp.
477
512
.
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