Abstract
Several models for single phase flow resistance over yawed tube bundles are summarized and evaluated against available experimental data. The models are based on one dimensional parallel and cross flow correlations. The data base includes both inline and staggered rod arrangements and yaw angles of 15°, 30°, 45°, 60°, and 75°. New data are presented for laminar flow at yaw angles of 30° and 45°. A simple model based on the principle of independence was confirmed for prediction of the total flow resistance in turbulent flow and for the drag component in laminar flow. However, none of the models evaluated satisfactorily predicted the lift component in laminar flow.
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