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Mass transfer experiment by naphthalene sublimation method has great advantage in measurement of local transfer coefficients in the region of a three dimensional flow or for a model of complex geometry, which is considered to be very difficult with conventional heat transfer measurements. Mass transfer data obtained by naphthalene sublimation technique are converted to the heat transfer data through heat/mass transfer analogy. This analogy is valid for a simple or laminar flow, but new insight is needed when applying to a turbulent flow or complex flow including separation, reattachment, and recirculation.
The purpose of this research is to investigate how geometries and flow conditions incorporate heat/mass transfer analogy. Mass transfer experiments are performed using naphthalene sublimation technique for a flat plate, a circular cylinder, and a square cylinder. And mass transfer data are compared with earlier heat transfer measurements for the same geometries. The results show good agreement in average transfer rates, but notable differences in local values.

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ABSTRACT

INTRODUCTION

ANALOGY EQUATION

EXPERIMENTAL APPARATUS AND PROCEDURE

RESULTS AND DISCUSSION

CONCLUSIONS

ACKNOWLEDGEMENT

REFERENCES

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UCI(KEPA) : I410-ECN-0101-2009-553-015453011