Numerical Simulation of Flow-Induced Vibration of Three-Dimensional Elastic Heat Exchanger Tube Bundle Based on Fluid-Structure Coupling

Table 7

Lift, drag frequency, and axial displacement response frequency results for each span.

Project	Lift frequency (Hz)	Drag frequency (Hz)	Y-direction response (Hz)	X-direction response (Hz)
I Span	49.17	99.88	49.82	99.63
II span	50.42	99.74	49.04	100.03
III span	49.52	100.01	49.83	99.02
IV span	49.99	99.83	50.03	99.59