Abstract
Effects of varying the spacing on the flow characteristics of air stream between the corrugated plates are studied experimentally.. Such plates are widely used in heat exchangers to improve heat transfer performance. Experiments are performed for air flow through the space between a pair of the walls, whose surfaces are formed in rows of triangular waves . It is demonstrated that the pressure drop coefficient first increases with varying the interwall spacing, reaches its maximum value and then decreases. The value of the spacing producing the maximum pressure drop depends upon the angle of the triangle. The pressure drop given above is compared with the results of -velocity distributions by hot wire anemometer and visualized flow characteristics.
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