  The telescopes and the infrastructures may alter the local wind environment
around the observatory and further affect the observing environment. After the
completion of site testing, it is necessary to analyze the wind environment of
the entire site and plan the telescope layout to make use of the excellent
conditions scientifically and rationally. Taking a typical observatory as an
example, the effect of topographical features on wind environment and the
mutual interference between telescope enclosures are analyzed by using
Computational Fluid Dynamics (CFD) method. The CFD simulations are compared
with the seeing data from Differential Image Motion Monitor (DIMM), the results
are in good agreement, which verifies the effectiveness of the CFD method. The
results of wind environment analysis can provide reasonable suggestions for
site layout and construction, improving the observing environment and the image
quality.
