Investigations of Forced Convection Liquid-Cooled Gas-Turbine Blades

May, Hans

doi:10.1115/1.3678139

Cited by 6 publications

(4 citation statements)

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“…The pressure distributions around the blade for the corresponding cases are shown in Fig. 5 and compared with the experimental data obtained by May [4]. As can be seen in these figures the heat transfer is affected by the free stream turbulence but the pressure distributions are almost identical for different turbulence levels.…”

Section: Resultsmentioning

confidence: 84%

“…The computed surface temperature ratios around the blade model 2 are shown in Fig. 6 for different free stream turbulence levels and are compared with the experimental data of reference [4]. The maximum difference caused by increasing the free stream turbulence levels from 0.01 to 0.02 is about 2.5% in the temperature ratio.…”

Section: Resultsmentioning

confidence: 99%

“…At the inflow region, the velocities, turbulent kinetic energy, turbulent energy dissipation, and temperature are assumed to be uniform. The velocities and turbulent kinetic energy are given experimentally (since the value of k is not given in reference [4], it is deduced considering the experimental apparatus), and the dissipation rate is calculated from e = Cu kì/Xf (8) where X is constant and R is the characteristic length. The distances between the blades are used for the characteristic length here.…”

Section: Boundary Conditionsmentioning

confidence: 99%

“…The results of the distribution of heat transfer coefficient are compared with the analytic results of both similarity and approximate solutions obtained in reference [3]. The temperature distributions around the blade surface were also obtained by using three different heat transfer coefficients based on the methods mentioned above and are compared with experimental data of May [4].…”

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confidence: 99%

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Numerical Study of Liquid Cooling Gas Turbine Blade

Amano

1982

Volume 4: Heat Transfer; Electric Power

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Numerical study is reported of a turbulent flow and a convective heat transfer rate around a gas turbine blade. In the computation of turbulent flow, a hybrid method of the central and the upwind finite differencing is used with the standard k-e turbulence model. The quasi-linear transformed coordinate is adopted for a grid system. For the computation of wall boundaries, the wall function is based on the idea that, beyond the viscous sublayer, the turbulent length scale is universal, increasing linearly with distance from the wall. The computed results display more effects of free stream turbulence level on the suction side where a strong favorable pressure gradient takes place than on the pressure side. The model illustrated here shows results superior to the analytic solution as a whole.

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Section: Resultsmentioning

confidence: 84%

Section: Resultsmentioning

confidence: 99%